./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:32:24,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:32:24,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:32:24,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:32:24,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:32:24,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:32:24,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:32:24,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:32:24,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:32:24,875 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:32:24,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:32:24,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:32:24,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:32:24,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:32:24,878 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:32:24,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:32:24,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:32:24,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:32:24,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:32:24,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:32:24,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:32:24,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:32:24,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:32:24,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:32:24,880 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:32:24,880 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:32:24,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:32:24,880 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:32:24,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:32:24,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:32:24,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:32:24,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:32:24,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:32:24,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:32:24,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:32:24,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:32:24,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:32:24,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:32:24,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:32:24,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:32:24,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:32:24,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:32:24,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:32:24,884 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2024-01-27 15:32:25,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:32:25,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:32:25,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:32:25,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:32:25,121 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:32:25,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-01-27 15:32:26,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:32:26,261 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:32:26,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-01-27 15:32:26,275 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c094fcf65/ee67a9d0ebd84fb8b581a0b58068f206/FLAGbf90c6716 [2024-01-27 15:32:26,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c094fcf65/ee67a9d0ebd84fb8b581a0b58068f206 [2024-01-27 15:32:26,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:32:26,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:32:26,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:32:26,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:32:26,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:32:26,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206e4422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26, skipping insertion in model container [2024-01-27 15:32:26,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:32:26,467 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2024-01-27 15:32:26,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:32:26,482 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:32:26,503 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2024-01-27 15:32:26,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:32:26,516 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:32:26,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26 WrapperNode [2024-01-27 15:32:26,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:32:26,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:32:26,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:32:26,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:32:26,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,562 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 307 [2024-01-27 15:32:26,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:32:26,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:32:26,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:32:26,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:32:26,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,588 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,611 INFO L175 MemorySlicer]: Split 19 memory accesses to 8 slices as follows [2, 5, 2, 2, 2, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2024-01-27 15:32:26,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:32:26,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:32:26,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:32:26,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:32:26,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (1/1) ... [2024-01-27 15:32:26,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:32:26,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:32:26,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 15:32:26,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 15:32:26,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:32:26,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:32:26,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:32:26,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:32:26,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:32:26,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 15:32:26,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 15:32:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-27 15:32:26,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-27 15:32:26,721 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 15:32:26,721 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 15:32:26,721 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 15:32:26,721 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 15:32:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 15:32:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 15:32:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 15:32:26,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 15:32:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:32:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:32:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:32:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 15:32:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 15:32:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 15:32:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-27 15:32:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-27 15:32:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-27 15:32:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-27 15:32:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-27 15:32:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-27 15:32:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 15:32:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 15:32:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-27 15:32:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:32:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:32:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:32:26,728 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 15:32:26,877 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:32:26,879 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:32:27,244 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:32:27,244 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:32:27,549 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:32:27,549 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-01-27 15:32:27,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:32:27 BoogieIcfgContainer [2024-01-27 15:32:27,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:32:27,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:32:27,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:32:27,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:32:27,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:32:26" (1/3) ... [2024-01-27 15:32:27,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c3260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:32:27, skipping insertion in model container [2024-01-27 15:32:27,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:32:26" (2/3) ... [2024-01-27 15:32:27,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c3260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:32:27, skipping insertion in model container [2024-01-27 15:32:27,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:32:27" (3/3) ... [2024-01-27 15:32:27,556 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2024-01-27 15:32:27,563 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:32:27,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:32:27,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-27 15:32:27,570 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:32:27,652 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-01-27 15:32:27,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 244 flow [2024-01-27 15:32:27,732 INFO L124 PetriNetUnfolderBase]: 13/75 cut-off events. [2024-01-27 15:32:27,732 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 15:32:27,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 75 events. 13/75 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 179 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2024-01-27 15:32:27,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 244 flow [2024-01-27 15:32:27,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 74 transitions, 196 flow [2024-01-27 15:32:27,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:32:27,752 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=PETRI_NET, 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;@3770b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:32:27,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-01-27 15:32:27,774 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:32:27,774 INFO L124 PetriNetUnfolderBase]: 13/73 cut-off events. [2024-01-27 15:32:27,774 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 15:32:27,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:32:27,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:32:27,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-01-27 15:32:27,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:32:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash -620164665, now seen corresponding path program 1 times [2024-01-27 15:32:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:32:27,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690139352] [2024-01-27 15:32:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:32:27,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:32:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:32:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:32:28,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:32:28,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690139352] [2024-01-27 15:32:28,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690139352] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:32:28,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:32:28,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 15:32:28,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344626413] [2024-01-27 15:32:28,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:32:28,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-27 15:32:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:32:28,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-27 15:32:28,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-27 15:32:28,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 93 [2024-01-27 15:32:28,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 196 flow. Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 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) [2024-01-27 15:32:28,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:32:28,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 93 [2024-01-27 15:32:28,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:32:40,146 INFO L124 PetriNetUnfolderBase]: 165722/207931 cut-off events. [2024-01-27 15:32:40,146 INFO L125 PetriNetUnfolderBase]: For 14694/14694 co-relation queries the response was YES. [2024-01-27 15:32:40,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426136 conditions, 207931 events. 165722/207931 cut-off events. For 14694/14694 co-relation queries the response was YES. Maximal size of possible extension queue 7880. Compared 1209735 event pairs, 127661 based on Foata normal form. 33320/202150 useless extension candidates. Maximal degree in co-relation 424000. Up to 200859 conditions per place. [2024-01-27 15:32:41,462 INFO L140 encePairwiseOnDemand]: 89/93 looper letters, 61 selfloop transitions, 0 changer transitions 0/70 dead transitions. [2024-01-27 15:32:41,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 70 transitions, 310 flow [2024-01-27 15:32:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-27 15:32:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-01-27 15:32:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 95 transitions. [2024-01-27 15:32:41,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510752688172043 [2024-01-27 15:32:41,473 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 196 flow. Second operand 2 states and 95 transitions. [2024-01-27 15:32:41,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 70 transitions, 310 flow [2024-01-27 15:32:41,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 70 transitions, 278 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-27 15:32:41,785 INFO L231 Difference]: Finished difference. Result has 69 places, 70 transitions, 156 flow [2024-01-27 15:32:41,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=69, PETRI_TRANSITIONS=70} [2024-01-27 15:32:41,789 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -11 predicate places. [2024-01-27 15:32:41,790 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 70 transitions, 156 flow [2024-01-27 15:32:41,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 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) [2024-01-27 15:32:41,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:32:41,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:32:41,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:32:41,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-01-27 15:32:41,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:32:41,791 INFO L85 PathProgramCache]: Analyzing trace with hash 704973535, now seen corresponding path program 1 times [2024-01-27 15:32:41,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:32:41,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909344004] [2024-01-27 15:32:41,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:32:41,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:32:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:32:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:32:41,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:32:41,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909344004] [2024-01-27 15:32:41,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909344004] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:32:41,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:32:41,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:32:41,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410163751] [2024-01-27 15:32:41,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:32:41,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:32:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:32:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:32:41,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:32:41,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 93 [2024-01-27 15:32:41,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 70 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-01-27 15:32:41,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:32:41,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 93 [2024-01-27 15:32:41,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand