./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d2ba6107 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-d2ba610-m [2023-11-21 18:34:25,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:34:25,695 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-21 18:34:25,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:34:25,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:34:25,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:34:25,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:34:25,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:34:25,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:34:25,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:34:25,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:34:25,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:34:25,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 18:34:25,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:34:25,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:34:25,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:34:25,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:34:25,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:34:25,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:34:25,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:34:25,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:34:25,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:34:25,747 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:34:25,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:34:25,748 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:34:25,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:34:25,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 18:34:25,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:34:25,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:34:25,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:34:25,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:34:25,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:34:25,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:34:25,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 18:34:25,751 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 18:34:25,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:34:25,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:34:25,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 18:34:25,751 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:34:25,751 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 18:34:25,752 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 18:34:25,752 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 18:34:25,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:34:25,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:34:25,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:34:25,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:34:25,971 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:34:25,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i [2023-11-21 18:34:26,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:34:27,112 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:34:27,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i [2023-11-21 18:34:27,123 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a6b029ab2/5c033c89fd0740109514ff51536f0893/FLAG875d677ef [2023-11-21 18:34:27,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a6b029ab2/5c033c89fd0740109514ff51536f0893 [2023-11-21 18:34:27,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:34:27,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:34:27,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:34:27,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:34:27,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:34:27,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcfee8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27, skipping insertion in model container [2023-11-21 18:34:27,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,184 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:34:27,470 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i[39758,39771] [2023-11-21 18:34:27,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:34:27,484 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:34:27,514 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_bad.i[39758,39771] [2023-11-21 18:34:27,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:34:27,602 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:34:27,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27 WrapperNode [2023-11-21 18:34:27,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:34:27,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:34:27,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:34:27,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:34:27,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,655 INFO L138 Inliner]: procedures = 244, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2023-11-21 18:34:27,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:34:27,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:34:27,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:34:27,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:34:27,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,681 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,702 INFO L193 HeapSplitter]: Split 31 memory accesses to 7 slices as follows [2, 2, 1, 8, 8, 8, 2] [2023-11-21 18:34:27,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:34:27,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:34:27,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:34:27,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:34:27,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (1/1) ... [2023-11-21 18:34:27,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:34:27,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 18:34:27,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:34:27,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:34:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:34:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:34:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 18:34:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 18:34:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 18:34:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 18:34:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 18:34:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 18:34:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 18:34:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 18:34:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 18:34:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 18:34:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 18:34:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 18:34:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 18:34:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 18:34:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 18:34:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 18:34:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 18:34:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 18:34:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 18:34:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 18:34:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 18:34:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 18:34:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 18:34:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 18:34:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 18:34:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 18:34:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 18:34:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:34:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 18:34:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 18:34:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 18:34:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 18:34:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 18:34:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 18:34:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 18:34:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:34:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:34:27,827 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 18:34:27,939 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:34:27,940 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:34:28,085 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:34:28,257 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:34:28,257 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 18:34:28,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:34:28 BoogieIcfgContainer [2023-11-21 18:34:28,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:34:28,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:34:28,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:34:28,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:34:28,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:34:27" (1/3) ... [2023-11-21 18:34:28,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad163c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:34:28, skipping insertion in model container [2023-11-21 18:34:28,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:34:27" (2/3) ... [2023-11-21 18:34:28,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad163c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:34:28, skipping insertion in model container [2023-11-21 18:34:28,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:34:28" (3/3) ... [2023-11-21 18:34:28,264 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2023-11-21 18:34:28,270 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 18:34:28,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:34:28,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 18:34:28,277 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 18:34:28,312 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 18:34:28,345 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:34:28,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 18:34:28,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 18:34:28,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 18:34:28,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-21 18:34:28,377 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 18:34:28,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-21 18:34:28,390 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5d09dc54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:34:28,390 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 18:34:28,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:28,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash -504289557, now seen corresponding path program 1 times [2023-11-21 18:34:28,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:28,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576243273] [2023-11-21 18:34:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:28,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 18:34:28,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:28,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576243273] [2023-11-21 18:34:28,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576243273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:34:28,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:34:28,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 18:34:28,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53758985] [2023-11-21 18:34:28,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:34:29,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:34:29,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:34:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:34:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,025 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:29,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-11-21 18:34:29,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 18:34:29,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:29,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:29,157 INFO L85 PathProgramCache]: Analyzing trace with hash 942420773, now seen corresponding path program 2 times [2023-11-21 18:34:29,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:29,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850661555] [2023-11-21 18:34:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:29,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-21 18:34:29,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:29,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850661555] [2023-11-21 18:34:29,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850661555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:34:29,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:34:29,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:34:29,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355029837] [2023-11-21 18:34:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:34:29,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:34:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:29,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:34:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:34:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:29,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-21 18:34:29,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 18:34:29,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:29,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1936740229, now seen corresponding path program 3 times [2023-11-21 18:34:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:29,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732306917] [2023-11-21 18:34:29,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:29,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-21 18:34:29,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:29,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732306917] [2023-11-21 18:34:29,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732306917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:34:29,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:34:29,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:34:29,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486256523] [2023-11-21 18:34:29,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:34:29,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 18:34:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 18:34:29,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 18:34:29,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:29,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-21 18:34:29,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:29,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 18:34:29,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:29,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1936040291, now seen corresponding path program 4 times [2023-11-21 18:34:29,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:29,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171960855] [2023-11-21 18:34:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-21 18:34:29,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171960855] [2023-11-21 18:34:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171960855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:34:29,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 18:34:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 18:34:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619649016] [2023-11-21 18:34:29,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:34:29,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 18:34:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:29,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 18:34:29,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 18:34:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,716 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:29,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2023-11-21 18:34:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:29,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:29,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 18:34:29,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:29,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:29,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1522029147, now seen corresponding path program 1 times [2023-11-21 18:34:29,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:29,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236225647] [2023-11-21 18:34:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:29,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:34:29,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:29,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236225647] [2023-11-21 18:34:29,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236225647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 18:34:29,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287247567] [2023-11-21 18:34:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:29,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:34:29,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 18:34:29,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 18:34:29,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 18:34:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:30,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:34:30,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 18:34:30,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:34:30,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287247567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:34:30,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 18:34:30,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2023-11-21 18:34:30,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096737794] [2023-11-21 18:34:30,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:34:30,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 18:34:30,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:30,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 18:34:30,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 18:34:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:30,075 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:30,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-21 18:34:30,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:30,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:34:30,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:34:30,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:30,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:30,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1911885447, now seen corresponding path program 1 times [2023-11-21 18:34:30,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:30,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850342169] [2023-11-21 18:34:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:30,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:30,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:30,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850342169] [2023-11-21 18:34:30,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850342169] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 18:34:30,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801061636] [2023-11-21 18:34:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:30,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:34:30,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 18:34:30,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 18:34:30,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 18:34:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:30,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:34:30,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:30,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 18:34:30,599 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:30,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801061636] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 18:34:30,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 18:34:30,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-21 18:34:30,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597825593] [2023-11-21 18:34:30,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 18:34:30,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 18:34:30,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:30,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 18:34:30,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 18:34:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:30,618 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:30,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2023-11-21 18:34:30,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:34:30,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 18:34:30,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:34:30,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:30,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1248008745, now seen corresponding path program 2 times [2023-11-21 18:34:30,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:30,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817212879] [2023-11-21 18:34:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:30,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:34:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 42 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:31,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 18:34:31,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817212879] [2023-11-21 18:34:31,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817212879] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 18:34:31,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368861537] [2023-11-21 18:34:31,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 18:34:31,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:34:31,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 18:34:31,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 18:34:31,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 18:34:31,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 18:34:31,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 18:34:31,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:34:31,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:34:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:34:31,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 18:34:31,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368861537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 18:34:31,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 18:34:31,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2023-11-21 18:34:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193134739] [2023-11-21 18:34:31,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 18:34:31,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 18:34:31,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 18:34:31,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 18:34:31,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-21 18:34:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:31,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 18:34:31,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:34:31,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 18:34:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 18:34:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 18:34:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 18:34:31,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 18:34:31,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:34:31,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:34:31,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 18:34:31,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:34:31,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1492868361, now seen corresponding path program 3 times [2023-11-21 18:34:31,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 18:34:31,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100767332] [2023-11-21 18:34:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:34:31,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:34:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:34:31,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:34:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:34:31,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 18:34:31,615 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 18:34:31,616 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-21 18:34:31,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-21 18:34:31,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-21 18:34:31,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 18:34:31,625 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1] [2023-11-21 18:34:31,629 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 18:34:31,629 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 18:34:31,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre16 could not be translated [2023-11-21 18:34:31,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre18 could not be translated [2023-11-21 18:34:31,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem20 could not be translated [2023-11-21 18:34:31,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem21 could not be translated [2023-11-21 18:34:31,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 06:34:31 BasicIcfg [2023-11-21 18:34:31,675 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 18:34:31,676 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:34:31,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:34:31,676 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:34:31,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:34:28" (3/4) ... [2023-11-21 18:34:31,677 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:34:31,693 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre16 could not be translated [2023-11-21 18:34:31,693 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre18 could not be translated [2023-11-21 18:34:31,696 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem20 could not be translated [2023-11-21 18:34:31,697 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem21 could not be translated [2023-11-21 18:34:31,730 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-21 18:34:31,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:34:31,731 INFO L158 Benchmark]: Toolchain (without parser) took 4589.36ms. Allocated memory was 142.6MB in the beginning and 249.6MB in the end (delta: 107.0MB). Free memory was 86.0MB in the beginning and 168.9MB in the end (delta: -83.0MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2023-11-21 18:34:31,731 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 100.6MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:34:31,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.21ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 85.7MB in the beginning and 146.5MB in the end (delta: -60.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-11-21 18:34:31,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.26ms. Allocated memory is still 182.5MB. Free memory was 146.5MB in the beginning and 143.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:34:31,732 INFO L158 Benchmark]: Boogie Preprocessor took 69.41ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 140.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:34:31,732 INFO L158 Benchmark]: RCFGBuilder took 526.17ms. Allocated memory is still 182.5MB. Free memory was 140.2MB in the beginning and 92.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-21 18:34:31,732 INFO L158 Benchmark]: TraceAbstraction took 3415.61ms. Allocated memory was 182.5MB in the beginning and 249.6MB in the end (delta: 67.1MB). Free memory was 90.9MB in the beginning and 181.5MB in the end (delta: -90.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:34:31,733 INFO L158 Benchmark]: Witness Printer took 54.52ms. Allocated memory is still 249.6MB. Free memory was 181.5MB in the beginning and 168.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:34:31,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 100.6MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.21ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 85.7MB in the beginning and 146.5MB in the end (delta: -60.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.26ms. Allocated memory is still 182.5MB. Free memory was 146.5MB in the beginning and 143.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.41ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 140.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 526.17ms. Allocated memory is still 182.5MB. Free memory was 140.2MB in the beginning and 92.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3415.61ms. Allocated memory was 182.5MB in the beginning and 249.6MB in the end (delta: 67.1MB). Free memory was 90.9MB in the beginning and 181.5MB in the end (delta: -90.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.52ms. Allocated memory is still 249.6MB. Free memory was 181.5MB in the beginning and 168.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem21 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem21 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2120, independent: 1613, independent conditional: 990, independent unconditional: 623, dependent: 507, dependent conditional: 485, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1697, independent: 1613, independent conditional: 990, independent unconditional: 623, dependent: 84, dependent conditional: 62, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1697, independent: 1613, independent conditional: 990, independent unconditional: 623, dependent: 84, dependent conditional: 62, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1794, independent: 1613, independent conditional: 3, independent unconditional: 1610, dependent: 181, dependent conditional: 94, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1794, independent: 1613, independent conditional: 3, independent unconditional: 1610, dependent: 181, dependent conditional: 34, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1794, independent: 1613, independent conditional: 3, independent unconditional: 1610, dependent: 181, dependent conditional: 34, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 512, independent: 475, independent conditional: 2, independent unconditional: 473, dependent: 37, dependent conditional: 12, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 512, independent: 456, independent conditional: 0, independent unconditional: 456, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 56, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 37, dependent conditional: 12, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 37, dependent conditional: 12, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 134, independent: 56, independent conditional: 3, independent unconditional: 54, dependent: 78, dependent conditional: 29, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1794, independent: 1138, independent conditional: 1, independent unconditional: 1137, dependent: 144, dependent conditional: 22, dependent unconditional: 122, unknown: 512, unknown conditional: 14, unknown unconditional: 498] , Statistics on independence cache: Total cache size (in pairs): 512, Positive cache size: 475, Positive conditional cache size: 2, Positive unconditional cache size: 473, Negative cache size: 37, Negative conditional cache size: 12, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 60, Maximal queried relation: 5, Independence queries for same thread: 423 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 129, Number of trivial persistent sets: 98, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 645, independent: 623, independent conditional: 0, independent unconditional: 623, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2120, independent: 1613, independent conditional: 990, independent unconditional: 623, dependent: 507, dependent conditional: 485, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1697, independent: 1613, independent conditional: 990, independent unconditional: 623, dependent: 84, dependent conditional: 62, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1697, independent: 1613, independent conditional: 990, independent unconditional: 623, dependent: 84, dependent conditional: 62, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1794, independent: 1613, independent conditional: 3, independent unconditional: 1610, dependent: 181, dependent conditional: 94, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1794, independent: 1613, independent conditional: 3, independent unconditional: 1610, dependent: 181, dependent conditional: 34, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1794, independent: 1613, independent conditional: 3, independent unconditional: 1610, dependent: 181, dependent conditional: 34, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 512, independent: 475, independent conditional: 2, independent unconditional: 473, dependent: 37, dependent conditional: 12, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 512, independent: 456, independent conditional: 0, independent unconditional: 456, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 56, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 37, dependent conditional: 12, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 37, dependent conditional: 12, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 134, independent: 56, independent conditional: 3, independent unconditional: 54, dependent: 78, dependent conditional: 29, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1794, independent: 1138, independent conditional: 1, independent unconditional: 1137, dependent: 144, dependent conditional: 22, dependent unconditional: 122, unknown: 512, unknown conditional: 14, unknown unconditional: 498] , Statistics on independence cache: Total cache size (in pairs): 512, Positive cache size: 475, Positive conditional cache size: 2, Positive unconditional cache size: 473, Negative cache size: 37, Negative conditional cache size: 12, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 60, Maximal queried relation: 5, Independence queries for same thread: 423 - CounterExampleResult [Line: 919]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L870] 0 int num; [L871] 0 unsigned long total; [L872] 0 int flag; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L874] 0 pthread_cond_t empty, full; [L907] 0 pthread_t t1, t2; [L908] 0 num = 0 [L909] 0 total = 0 [L913] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, empty={4:0}, flag=0, full={5:0}, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=0] [L876] 1 int i; [L877] 1 i = 0 VAL [arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, m={3:0}, num=0, total=0] [L914] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=0] [L890] 2 int j; [L891] 2 j = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=0, total=0] [L915] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=0, total=0] [L878] COND TRUE 1 i < 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=0, total=0] [L892] COND TRUE 2 j < 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=0, total=0] [L880] COND FALSE 1 !(num > 0) [L882] 1 num++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=0, j=0, m={3:0}, num=1, total=0] [L885] 1 i++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=0, m={3:0}, num=1, total=0] [L894] COND FALSE 2 !(num == 0) [L896] 2 total = total + j [L897] 2 num-- VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=0, m={3:0}, num=0, total=0] [L900] 2 j++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=0, total=0] [L878] COND TRUE 1 i < 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=0, total=0] [L892] COND TRUE 2 j < 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=0, total=0] [L880] COND FALSE 1 !(num > 0) [L882] 1 num++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=1, j=1, m={3:0}, num=1, total=0] [L885] 1 i++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=1, m={3:0}, num=1, total=0] [L894] COND FALSE 2 !(num == 0) [L896] 2 total = total + j [L897] 2 num-- VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=1, m={3:0}, num=0, total=1] [L900] 2 j++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=0, total=1] [L878] COND TRUE 1 i < 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=0, total=1] [L892] COND TRUE 2 j < 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=0, total=1] [L880] COND FALSE 1 !(num > 0) [L882] 1 num++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=2, j=2, m={3:0}, num=1, total=1] [L885] 1 i++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=1, total=1] [L894] COND FALSE 2 !(num == 0) [L896] 2 total = total + j [L897] 2 num-- VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=2, m={3:0}, num=0, total=3] [L900] 2 j++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=3, m={3:0}, num=0, total=3] [L878] COND FALSE 1 !(i < 3) [L887] 1 return ((void *)0); [L915] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=3] [L916] 0 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=0, full={5:0}, i=3, j=3, m={3:0}, num=0, total=3] [L892] COND FALSE 2 !(j < 3) [L902] 2 total = total + j [L903] 2 flag = 1 [L904] 2 return ((void *)0); [L916] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=1, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=6] [L917] COND TRUE 0 \read(flag) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=1, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=6] [L918] COND FALSE 0 !(total != ((3 * (3 + 1)) / 2)) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=1, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=6] [L919] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, empty={4:0}, flag=1, full={5:0}, i=3, j=3, m={3:0}, num=0, t1={6:0}, t2={7:0}, total=6] - UnprovableResult [Line: 913]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 914]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 61 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 28, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 573 ConstructedInterpolants, 0 QuantifiedInterpolants, 1015 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1005 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 438/474 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! [2023-11-21 18:34:31,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:34:31,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE