./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-ptr-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-ptr-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b48d748645bdde1aeeb8dea66ba49bd5b185acd910927d963305195a7958388 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:27,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:27,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:47:27,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:27,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:27,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:27,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:27,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:27,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:27,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:27,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:27,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:27,222 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:27,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:27,224 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:27,225 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:27,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:27,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:27,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:27,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:27,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:27,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:27,229 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:47:27,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:27,230 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:27,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:27,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:27,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:27,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:27,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:27,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:27,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:27,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:27,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:27,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:27,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:27,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:27,237 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:27,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:27,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:27,238 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:27,238 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b48d748645bdde1aeeb8dea66ba49bd5b185acd910927d963305195a7958388 [2023-11-19 07:47:27,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:27,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:27,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:27,620 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:27,620 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:27,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-ptr-race.i [2023-11-19 07:47:30,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:31,088 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:31,089 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/sv-benchmarks/c/pthread-race-challenges/per-thread-array-ptr-race.i [2023-11-19 07:47:31,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/data/2dbd2105e/91ae5118f8b5407888ada88fab95ffef/FLAG9c49a8cc7 [2023-11-19 07:47:31,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/data/2dbd2105e/91ae5118f8b5407888ada88fab95ffef [2023-11-19 07:47:31,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:31,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:31,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:31,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:31,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:31,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ed949d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31, skipping insertion in model container [2023-11-19 07:47:31,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,206 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:31,418 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:47:31,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:31,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:31,774 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:47:31,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:31,894 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:31,901 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:31,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31 WrapperNode [2023-11-19 07:47:31,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:31,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:31,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:31,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:31,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,963 INFO L138 Inliner]: procedures = 266, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2023-11-19 07:47:31,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:31,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:31,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:31,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:31,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:31,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:32,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:32,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:32,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:32,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:32,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:32,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:32,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:32,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (1/1) ... [2023-11-19 07:47:32,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:32,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:32,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:32,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:47:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:47:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:47:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 07:47:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 07:47:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:32,085 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:32,297 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:32,302 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:32,642 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:32,653 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:32,653 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:47:32,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:32 BoogieIcfgContainer [2023-11-19 07:47:32,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:32,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:32,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:32,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:32,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:31" (1/3) ... [2023-11-19 07:47:32,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470de72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:32, skipping insertion in model container [2023-11-19 07:47:32,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:31" (2/3) ... [2023-11-19 07:47:32,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470de72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:32, skipping insertion in model container [2023-11-19 07:47:32,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:32" (3/3) ... [2023-11-19 07:47:32,667 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-ptr-race.i [2023-11-19 07:47:32,674 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:32,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:32,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-19 07:47:32,683 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:32,766 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:47:32,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 122 transitions, 251 flow [2023-11-19 07:47:32,882 INFO L124 PetriNetUnfolderBase]: 6/188 cut-off events. [2023-11-19 07:47:32,882 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:47:32,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 188 events. 6/188 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 372 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 91. Up to 4 conditions per place. [2023-11-19 07:47:32,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 122 transitions, 251 flow [2023-11-19 07:47:32,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 122 transitions, 251 flow [2023-11-19 07:47:32,898 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:32,909 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 122 transitions, 251 flow [2023-11-19 07:47:32,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 122 transitions, 251 flow [2023-11-19 07:47:32,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 122 transitions, 251 flow [2023-11-19 07:47:32,975 INFO L124 PetriNetUnfolderBase]: 6/188 cut-off events. [2023-11-19 07:47:32,975 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:47:32,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 188 events. 6/188 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 372 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 91. Up to 4 conditions per place. [2023-11-19 07:47:32,979 INFO L119 LiptonReduction]: Number of co-enabled transitions 2368 [2023-11-19 07:47:35,899 INFO L134 LiptonReduction]: Checked pairs total: 9574 [2023-11-19 07:47:35,899 INFO L136 LiptonReduction]: Total number of compositions: 71 [2023-11-19 07:47:35,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:35,924 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;@a1740f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:35,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-19 07:47:35,928 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:35,929 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-19 07:47:35,929 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:35,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:35,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:35,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:47:35,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:35,936 INFO L85 PathProgramCache]: Analyzing trace with hash -315415979, now seen corresponding path program 1 times [2023-11-19 07:47:35,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:35,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962848403] [2023-11-19 07:47:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:35,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:36,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:36,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962848403] [2023-11-19 07:47:36,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962848403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:36,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:36,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471001655] [2023-11-19 07:47:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:36,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:36,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:36,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:36,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:37,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 193 [2023-11-19 07:47:37,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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) [2023-11-19 07:47:37,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:37,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 193 [2023-11-19 07:47:37,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:37,440 INFO L124 PetriNetUnfolderBase]: 152/518 cut-off events. [2023-11-19 07:47:37,440 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-19 07:47:37,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 888 conditions, 518 events. 152/518 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2769 event pairs, 47 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 808. Up to 237 conditions per place. [2023-11-19 07:47:37,446 INFO L140 encePairwiseOnDemand]: 177/193 looper letters, 49 selfloop transitions, 23 changer transitions 0/99 dead transitions. [2023-11-19 07:47:37,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 99 transitions, 349 flow [2023-11-19 07:47:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:37,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 656 transitions. [2023-11-19 07:47:37,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5664939550949913 [2023-11-19 07:47:37,467 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 656 transitions. [2023-11-19 07:47:37,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 656 transitions. [2023-11-19 07:47:37,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:37,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 656 transitions. [2023-11-19 07:47:37,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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) [2023-11-19 07:47:37,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:37,488 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:37,490 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 121 flow. Second operand 6 states and 656 transitions. [2023-11-19 07:47:37,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 99 transitions, 349 flow [2023-11-19 07:47:37,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 99 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:37,499 INFO L231 Difference]: Finished difference. Result has 69 places, 80 transitions, 291 flow [2023-11-19 07:47:37,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=69, PETRI_TRANSITIONS=80} [2023-11-19 07:47:37,504 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 10 predicate places. [2023-11-19 07:47:37,505 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 80 transitions, 291 flow [2023-11-19 07:47:37,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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) [2023-11-19 07:47:37,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:37,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:37,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:37,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:47:37,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash 836274150, now seen corresponding path program 1 times [2023-11-19 07:47:37,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:37,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50819202] [2023-11-19 07:47:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:37,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:37,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50819202] [2023-11-19 07:47:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50819202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:37,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:37,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858443067] [2023-11-19 07:47:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:37,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:37,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:38,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 193 [2023-11-19 07:47:38,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 80 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2023-11-19 07:47:38,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:38,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 193 [2023-11-19 07:47:38,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:38,404 INFO L124 PetriNetUnfolderBase]: 294/866 cut-off events. [2023-11-19 07:47:38,404 INFO L125 PetriNetUnfolderBase]: For 338/344 co-relation queries the response was YES. [2023-11-19 07:47:38,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 866 events. 294/866 cut-off events. For 338/344 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5229 event pairs, 52 based on Foata normal form. 5/829 useless extension candidates. Maximal degree in co-relation 1919. Up to 411 conditions per place. [2023-11-19 07:47:38,414 INFO L140 encePairwiseOnDemand]: 170/193 looper letters, 75 selfloop transitions, 50 changer transitions 0/153 dead transitions. [2023-11-19 07:47:38,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 153 transitions, 804 flow [2023-11-19 07:47:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 639 transitions. [2023-11-19 07:47:38,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5518134715025906 [2023-11-19 07:47:38,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 639 transitions. [2023-11-19 07:47:38,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 639 transitions. [2023-11-19 07:47:38,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:38,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 639 transitions. [2023-11-19 07:47:38,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.5) internal successors, (639), 6 states have internal predecessors, (639), 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) [2023-11-19 07:47:38,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:38,427 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:38,427 INFO L175 Difference]: Start difference. First operand has 69 places, 80 transitions, 291 flow. Second operand 6 states and 639 transitions. [2023-11-19 07:47:38,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 153 transitions, 804 flow [2023-11-19 07:47:38,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 153 transitions, 804 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:38,438 INFO L231 Difference]: Finished difference. Result has 79 places, 129 transitions, 769 flow [2023-11-19 07:47:38,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=769, PETRI_PLACES=79, PETRI_TRANSITIONS=129} [2023-11-19 07:47:38,439 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 20 predicate places. [2023-11-19 07:47:38,439 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 129 transitions, 769 flow [2023-11-19 07:47:38,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2023-11-19 07:47:38,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:38,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:38,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:38,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:47:38,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash -38167286, now seen corresponding path program 1 times [2023-11-19 07:47:38,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:38,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771837029] [2023-11-19 07:47:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:38,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:38,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:38,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771837029] [2023-11-19 07:47:38,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771837029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:38,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:38,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:38,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345733194] [2023-11-19 07:47:38,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:38,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:38,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:38,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:38,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:39,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 193 [2023-11-19 07:47:39,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 129 transitions, 769 flow. Second operand has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2023-11-19 07:47:39,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:39,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 193 [2023-11-19 07:47:39,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:39,463 INFO L124 PetriNetUnfolderBase]: 290/850 cut-off events. [2023-11-19 07:47:39,463 INFO L125 PetriNetUnfolderBase]: For 1132/1151 co-relation queries the response was YES. [2023-11-19 07:47:39,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 850 events. 290/850 cut-off events. For 1132/1151 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5126 event pairs, 54 based on Foata normal form. 1/820 useless extension candidates. Maximal degree in co-relation 2430. Up to 452 conditions per place. [2023-11-19 07:47:39,472 INFO L140 encePairwiseOnDemand]: 182/193 looper letters, 77 selfloop transitions, 33 changer transitions 8/171 dead transitions. [2023-11-19 07:47:39,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 171 transitions, 1244 flow [2023-11-19 07:47:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 657 transitions. [2023-11-19 07:47:39,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5673575129533679 [2023-11-19 07:47:39,476 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 657 transitions. [2023-11-19 07:47:39,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 657 transitions. [2023-11-19 07:47:39,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:39,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 657 transitions. [2023-11-19 07:47:39,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2023-11-19 07:47:39,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:39,484 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:39,484 INFO L175 Difference]: Start difference. First operand has 79 places, 129 transitions, 769 flow. Second operand 6 states and 657 transitions. [2023-11-19 07:47:39,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 171 transitions, 1244 flow [2023-11-19 07:47:39,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 171 transitions, 1244 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:39,495 INFO L231 Difference]: Finished difference. Result has 89 places, 159 transitions, 1134 flow [2023-11-19 07:47:39,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1134, PETRI_PLACES=89, PETRI_TRANSITIONS=159} [2023-11-19 07:47:39,496 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 30 predicate places. [2023-11-19 07:47:39,497 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 159 transitions, 1134 flow [2023-11-19 07:47:39,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2023-11-19 07:47:39,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:39,498 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] [2023-11-19 07:47:39,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:39,498 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:47:39,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:39,499 INFO L85 PathProgramCache]: Analyzing trace with hash 44893838, now seen corresponding path program 1 times [2023-11-19 07:47:39,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:39,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980011272] [2023-11-19 07:47:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:39,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:39,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:39,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980011272] [2023-11-19 07:47:39,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980011272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:39,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:39,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:39,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250469446] [2023-11-19 07:47:39,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:39,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:39,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:39,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:40,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 193 [2023-11-19 07:47:40,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 159 transitions, 1134 flow. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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) [2023-11-19 07:47:40,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:40,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 193 [2023-11-19 07:47:40,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:40,593 INFO L124 PetriNetUnfolderBase]: 555/1369 cut-off events. [2023-11-19 07:47:40,594 INFO L125 PetriNetUnfolderBase]: For 1877/1891 co-relation queries the response was YES. [2023-11-19 07:47:40,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4965 conditions, 1369 events. 555/1369 cut-off events. For 1877/1891 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 8632 event pairs, 99 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 4798. Up to 1020 conditions per place. [2023-11-19 07:47:40,610 INFO L140 encePairwiseOnDemand]: 163/193 looper letters, 172 selfloop transitions, 111 changer transitions 10/308 dead transitions. [2023-11-19 07:47:40,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 308 transitions, 2382 flow [2023-11-19 07:47:40,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:40,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 688 transitions. [2023-11-19 07:47:40,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5941278065630398 [2023-11-19 07:47:40,614 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 688 transitions. [2023-11-19 07:47:40,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 688 transitions. [2023-11-19 07:47:40,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:40,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 688 transitions. [2023-11-19 07:47:40,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.66666666666667) internal successors, (688), 6 states have internal predecessors, (688), 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) [2023-11-19 07:47:40,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:40,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:47:40,621 INFO L175 Difference]: Start difference. First operand has 89 places, 159 transitions, 1134 flow. Second operand 6 states and 688 transitions. [2023-11-19 07:47:40,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 308 transitions, 2382 flow [2023-11-19 07:47:40,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 308 transitions, 2382 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:40,639 INFO L231 Difference]: Finished difference. Result has 97 places, 262 transitions, 2044 flow [2023-11-19 07:47:40,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2044, PETRI_PLACES=97, PETRI_TRANSITIONS=262} [2023-11-19 07:47:40,641 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 38 predicate places. [2023-11-19 07:47:40,641 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 262 transitions, 2044 flow [2023-11-19 07:47:40,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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) [2023-11-19 07:47:40,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:40,642 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:40,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:40,642 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:47:40,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 52842039, now seen corresponding path program 1 times [2023-11-19 07:47:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:40,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283207408] [2023-11-19 07:47:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:41,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283207408] [2023-11-19 07:47:41,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283207408] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:41,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913948782] [2023-11-19 07:47:41,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:41,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:41,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:41,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:41,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:47:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:41,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 07:47:41,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:41,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 07:47:41,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:47:41,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:47:41,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 07:47:41,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 07:47:41,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:47:41,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:47:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:41,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:44,163 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~#datas~0#1.offset| 3))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#datas~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#datas~0#1.base|) .cse1 0)))) (and (forall ((v_ArrVal_197 (Array Int Int))) (= 0 (select (select (store .cse0 c_threadThread1of1ForFork0_~p~0.base v_ArrVal_197) |c_ULTIMATE.start_main_~#datas~0#1.base|) (+ |c_ULTIMATE.start_main_~#datas~0#1.offset| 1)))) (forall ((v_ArrVal_197 (Array Int Int))) (= (select (select (store .cse0 c_threadThread1of1ForFork0_~p~0.base v_ArrVal_197) |c_ULTIMATE.start_main_~#datas~0#1.base|) |c_ULTIMATE.start_main_~#datas~0#1.offset|) 0)) (forall ((v_ArrVal_197 (Array Int Int))) (= 0 (select (select (store .cse0 c_threadThread1of1ForFork0_~p~0.base v_ArrVal_197) |c_ULTIMATE.start_main_~#datas~0#1.base|) (+ |c_ULTIMATE.start_main_~#datas~0#1.offset| 2)))) (forall ((v_ArrVal_197 (Array Int Int))) (= (select (select (store .cse0 c_threadThread1of1ForFork0_~p~0.base v_ArrVal_197) |c_ULTIMATE.start_main_~#datas~0#1.base|) .cse1) 0))))) is different from false [2023-11-19 07:47:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-19 07:47:48,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913948782] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:48,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:47:48,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 25 [2023-11-19 07:47:48,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570637826] [2023-11-19 07:47:48,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:48,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-19 07:47:48,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:48,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-19 07:47:48,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=516, Unknown=29, NotChecked=48, Total=702 [2023-11-19 07:47:48,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 193 [2023-11-19 07:47:48,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 262 transitions, 2044 flow. Second operand has 27 states, 27 states have (on average 60.592592592592595) internal successors, (1636), 27 states have internal predecessors, (1636), 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) [2023-11-19 07:47:48,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:48,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 193 [2023-11-19 07:47:48,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:50,203 INFO L124 PetriNetUnfolderBase]: 631/1458 cut-off events. [2023-11-19 07:47:50,203 INFO L125 PetriNetUnfolderBase]: For 3362/3362 co-relation queries the response was YES. [2023-11-19 07:47:50,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6479 conditions, 1458 events. 631/1458 cut-off events. For 3362/3362 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 9121 event pairs, 83 based on Foata normal form. 10/1368 useless extension candidates. Maximal degree in co-relation 6377. Up to 1331 conditions per place. [2023-11-19 07:47:50,222 INFO L140 encePairwiseOnDemand]: 183/193 looper letters, 304 selfloop transitions, 12 changer transitions 12/330 dead transitions. [2023-11-19 07:47:50,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 330 transitions, 3085 flow [2023-11-19 07:47:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:47:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:47:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 699 transitions. [2023-11-19 07:47:50,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3621761658031088 [2023-11-19 07:47:50,227 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 699 transitions. [2023-11-19 07:47:50,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 699 transitions. [2023-11-19 07:47:50,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:50,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 699 transitions. [2023-11-19 07:47:50,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.9) internal successors, (699), 10 states have internal predecessors, (699), 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) [2023-11-19 07:47:50,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 193.0) internal successors, (2123), 11 states have internal predecessors, (2123), 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) [2023-11-19 07:47:50,235 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 193.0) internal successors, (2123), 11 states have internal predecessors, (2123), 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) [2023-11-19 07:47:50,235 INFO L175 Difference]: Start difference. First operand has 97 places, 262 transitions, 2044 flow. Second operand 10 states and 699 transitions. [2023-11-19 07:47:50,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 330 transitions, 3085 flow [2023-11-19 07:47:50,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 330 transitions, 2941 flow, removed 72 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:50,323 INFO L231 Difference]: Finished difference. Result has 107 places, 265 transitions, 1940 flow [2023-11-19 07:47:50,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1892, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1940, PETRI_PLACES=107, PETRI_TRANSITIONS=265} [2023-11-19 07:47:50,325 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 48 predicate places. [2023-11-19 07:47:50,325 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 265 transitions, 1940 flow [2023-11-19 07:47:50,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 60.592592592592595) internal successors, (1636), 27 states have internal predecessors, (1636), 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) [2023-11-19 07:47:50,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:50,326 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:50,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:50,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:50,536 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:47:50,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:50,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2128197458, now seen corresponding path program 1 times [2023-11-19 07:47:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:50,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044013724] [2023-11-19 07:47:50,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:50,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:51,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:51,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044013724] [2023-11-19 07:47:51,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044013724] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:47:51,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902374198] [2023-11-19 07:47:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:51,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:47:51,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:51,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:47:51,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:47:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:51,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 07:47:51,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:51,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 07:47:51,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:47:51,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:47:51,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:47:51,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 07:47:51,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 07:47:51,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:47:51,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:47:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:51,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:53,899 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_297 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_297) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)))) (forall ((v_ArrVal_297 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_297) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_297 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_297) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_297 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_297) c_threadThread1of1ForFork0_~p~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-19 07:47:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:58,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902374198] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:58,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:47:58,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 25 [2023-11-19 07:47:58,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721137457] [2023-11-19 07:47:58,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:58,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-19 07:47:58,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:58,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-19 07:47:58,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=520, Unknown=25, NotChecked=48, Total=702 [2023-11-19 07:47:58,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 193 [2023-11-19 07:47:58,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 265 transitions, 1940 flow. Second operand has 27 states, 27 states have (on average 52.592592592592595) internal successors, (1420), 27 states have internal predecessors, (1420), 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) [2023-11-19 07:47:58,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:58,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 193 [2023-11-19 07:47:58,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:01,300 INFO L124 PetriNetUnfolderBase]: 658/1517 cut-off events. [2023-11-19 07:48:01,301 INFO L125 PetriNetUnfolderBase]: For 3416/3422 co-relation queries the response was YES. [2023-11-19 07:48:01,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6825 conditions, 1517 events. 658/1517 cut-off events. For 3416/3422 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 9557 event pairs, 75 based on Foata normal form. 2/1439 useless extension candidates. Maximal degree in co-relation 6709. Up to 939 conditions per place. [2023-11-19 07:48:01,321 INFO L140 encePairwiseOnDemand]: 163/193 looper letters, 315 selfloop transitions, 136 changer transitions 35/488 dead transitions. [2023-11-19 07:48:01,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 488 transitions, 4234 flow [2023-11-19 07:48:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:48:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-19 07:48:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1240 transitions. [2023-11-19 07:48:01,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3381510771748023 [2023-11-19 07:48:01,328 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1240 transitions. [2023-11-19 07:48:01,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1240 transitions. [2023-11-19 07:48:01,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:01,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1240 transitions. [2023-11-19 07:48:01,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 65.26315789473684) internal successors, (1240), 19 states have internal predecessors, (1240), 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) [2023-11-19 07:48:01,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 193.0) internal successors, (3860), 20 states have internal predecessors, (3860), 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) [2023-11-19 07:48:01,344 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 193.0) internal successors, (3860), 20 states have internal predecessors, (3860), 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) [2023-11-19 07:48:01,344 INFO L175 Difference]: Start difference. First operand has 107 places, 265 transitions, 1940 flow. Second operand 19 states and 1240 transitions. [2023-11-19 07:48:01,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 488 transitions, 4234 flow [2023-11-19 07:48:01,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 488 transitions, 4207 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:48:01,390 INFO L231 Difference]: Finished difference. Result has 127 places, 304 transitions, 2756 flow [2023-11-19 07:48:01,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2756, PETRI_PLACES=127, PETRI_TRANSITIONS=304} [2023-11-19 07:48:01,393 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 68 predicate places. [2023-11-19 07:48:01,394 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 304 transitions, 2756 flow [2023-11-19 07:48:01,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 52.592592592592595) internal successors, (1420), 27 states have internal predecessors, (1420), 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) [2023-11-19 07:48:01,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:01,395 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] [2023-11-19 07:48:01,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:01,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:48:01,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:48:01,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:01,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1242640361, now seen corresponding path program 1 times [2023-11-19 07:48:01,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:01,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145819134] [2023-11-19 07:48:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:01,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:01,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:01,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145819134] [2023-11-19 07:48:01,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145819134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:01,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025140091] [2023-11-19 07:48:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:01,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:01,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:01,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:01,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:48:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:01,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:48:01,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:01,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025140091] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:01,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:01,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2023-11-19 07:48:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676725061] [2023-11-19 07:48:01,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:01,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:48:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:48:01,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:48:02,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 193 [2023-11-19 07:48:02,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 304 transitions, 2756 flow. Second operand has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 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) [2023-11-19 07:48:02,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:02,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 193 [2023-11-19 07:48:02,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:02,352 INFO L124 PetriNetUnfolderBase]: 238/740 cut-off events. [2023-11-19 07:48:02,352 INFO L125 PetriNetUnfolderBase]: For 2436/2450 co-relation queries the response was YES. [2023-11-19 07:48:02,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3360 conditions, 740 events. 238/740 cut-off events. For 2436/2450 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4585 event pairs, 3 based on Foata normal form. 4/740 useless extension candidates. Maximal degree in co-relation 3258. Up to 234 conditions per place. [2023-11-19 07:48:02,363 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 17 selfloop transitions, 9 changer transitions 0/223 dead transitions. [2023-11-19 07:48:02,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 223 transitions, 2072 flow [2023-11-19 07:48:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:02,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2023-11-19 07:48:02,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5544041450777202 [2023-11-19 07:48:02,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 642 transitions. [2023-11-19 07:48:02,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 642 transitions. [2023-11-19 07:48:02,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:02,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 642 transitions. [2023-11-19 07:48:02,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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) [2023-11-19 07:48:02,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:48:02,374 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-11-19 07:48:02,374 INFO L175 Difference]: Start difference. First operand has 127 places, 304 transitions, 2756 flow. Second operand 6 states and 642 transitions. [2023-11-19 07:48:02,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 223 transitions, 2072 flow [2023-11-19 07:48:02,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 223 transitions, 1985 flow, removed 22 selfloop flow, removed 8 redundant places. [2023-11-19 07:48:02,406 INFO L231 Difference]: Finished difference. Result has 109 places, 219 transitions, 1931 flow [2023-11-19 07:48:02,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1931, PETRI_PLACES=109, PETRI_TRANSITIONS=219} [2023-11-19 07:48:02,408 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 50 predicate places. [2023-11-19 07:48:02,409 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 219 transitions, 1931 flow [2023-11-19 07:48:02,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 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) [2023-11-19 07:48:02,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:02,410 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] [2023-11-19 07:48:02,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:02,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:02,625 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:48:02,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1169932305, now seen corresponding path program 1 times [2023-11-19 07:48:02,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:02,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631569382] [2023-11-19 07:48:02,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:02,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:03,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:03,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631569382] [2023-11-19 07:48:03,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631569382] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:03,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222788006] [2023-11-19 07:48:03,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:03,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:03,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:03,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:03,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:48:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:03,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 07:48:03,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:03,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 07:48:03,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:48:03,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:48:03,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 07:48:03,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 07:48:03,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:03,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:03,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:03,819 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_489 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset))) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 3)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-19 07:48:03,861 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) .cse1)))))) is different from false [2023-11-19 07:48:03,892 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_threadThread1of1ForFork0_~p~0.offset 2)) (.cse1 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse2 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) .cse2) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_489) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-19 07:48:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-19 07:48:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222788006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:06,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:06,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 25 [2023-11-19 07:48:06,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884406883] [2023-11-19 07:48:06,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:06,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-19 07:48:06,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:06,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-19 07:48:06,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=460, Unknown=3, NotChecked=138, Total=702 [2023-11-19 07:48:06,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2023-11-19 07:48:06,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 219 transitions, 1931 flow. Second operand has 27 states, 27 states have (on average 49.7037037037037) internal successors, (1342), 27 states have internal predecessors, (1342), 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) [2023-11-19 07:48:06,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:06,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2023-11-19 07:48:06,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:08,129 INFO L124 PetriNetUnfolderBase]: 458/1087 cut-off events. [2023-11-19 07:48:08,129 INFO L125 PetriNetUnfolderBase]: For 3526/3528 co-relation queries the response was YES. [2023-11-19 07:48:08,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5535 conditions, 1087 events. 458/1087 cut-off events. For 3526/3528 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6447 event pairs, 31 based on Foata normal form. 2/1054 useless extension candidates. Maximal degree in co-relation 5417. Up to 600 conditions per place. [2023-11-19 07:48:08,148 INFO L140 encePairwiseOnDemand]: 173/193 looper letters, 276 selfloop transitions, 96 changer transitions 9/383 dead transitions. [2023-11-19 07:48:08,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 383 transitions, 3650 flow [2023-11-19 07:48:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:48:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-19 07:48:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1003 transitions. [2023-11-19 07:48:08,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30569948186528495 [2023-11-19 07:48:08,155 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1003 transitions. [2023-11-19 07:48:08,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1003 transitions. [2023-11-19 07:48:08,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:08,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1003 transitions. [2023-11-19 07:48:08,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 59.0) internal successors, (1003), 17 states have internal predecessors, (1003), 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) [2023-11-19 07:48:08,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-11-19 07:48:08,167 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-11-19 07:48:08,168 INFO L175 Difference]: Start difference. First operand has 109 places, 219 transitions, 1931 flow. Second operand 17 states and 1003 transitions. [2023-11-19 07:48:08,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 383 transitions, 3650 flow [2023-11-19 07:48:08,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 383 transitions, 3626 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-11-19 07:48:08,207 INFO L231 Difference]: Finished difference. Result has 125 places, 248 transitions, 2550 flow [2023-11-19 07:48:08,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1917, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2550, PETRI_PLACES=125, PETRI_TRANSITIONS=248} [2023-11-19 07:48:08,211 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 66 predicate places. [2023-11-19 07:48:08,212 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 248 transitions, 2550 flow [2023-11-19 07:48:08,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 49.7037037037037) internal successors, (1342), 27 states have internal predecessors, (1342), 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) [2023-11-19 07:48:08,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:08,213 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] [2023-11-19 07:48:08,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:08,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:48:08,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:48:08,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash -272130895, now seen corresponding path program 1 times [2023-11-19 07:48:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:08,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863379059] [2023-11-19 07:48:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:08,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863379059] [2023-11-19 07:48:08,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863379059] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484708002] [2023-11-19 07:48:08,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:08,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:08,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:08,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:09,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:48:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:09,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 07:48:09,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:09,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-19 07:48:09,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:48:09,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:48:09,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 07:48:09,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 07:48:09,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:09,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:09,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:09,586 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store |c_#race| c_threadThread1of1ForFork0_~p~0.base v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store |c_#race| c_threadThread1of1ForFork0_~p~0.base v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store |c_#race| c_threadThread1of1ForFork0_~p~0.base v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store |c_#race| c_threadThread1of1ForFork0_~p~0.base v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0))) is different from false [2023-11-19 07:48:11,903 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1 0)))) (and (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)))) (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0)))) (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)))) (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1) 0))))))) is different from false [2023-11-19 07:48:11,954 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) (.cse2 (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1 0) .cse2 0)))) (and (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1) 0)))) (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse2) 0)))) (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41) (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)))) (forall ((v_threadThread1of1ForFork0_~p~0.base_41 Int)) (or (forall ((v_ArrVal_589 (Array Int Int))) (= (select (select (store .cse0 v_threadThread1of1ForFork0_~p~0.base_41 v_ArrVal_589) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0)) (< |c_threadThread1of1ForFork0_#in~arg.base| v_threadThread1of1ForFork0_~p~0.base_41)))))) is different from false [2023-11-19 07:48:14,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:48:14,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 49 [2023-11-19 07:48:14,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:48:14,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 34 [2023-11-19 07:48:14,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 07:48:14,184 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-19 07:48:14,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2023-11-19 07:48:14,191 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-19 07:48:14,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2023-11-19 07:48:14,198 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-19 07:48:14,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 1 [2023-11-19 07:48:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:14,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484708002] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:14,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 27 [2023-11-19 07:48:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419270401] [2023-11-19 07:48:14,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:14,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-19 07:48:14,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:14,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-19 07:48:14,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=527, Unknown=10, NotChecked=150, Total=812 [2023-11-19 07:48:14,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 193 [2023-11-19 07:48:14,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 248 transitions, 2550 flow. Second operand has 29 states, 29 states have (on average 57.55172413793103) internal successors, (1669), 29 states have internal predecessors, (1669), 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) [2023-11-19 07:48:14,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:14,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 193 [2023-11-19 07:48:14,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:15,350 INFO L124 PetriNetUnfolderBase]: 438/1054 cut-off events. [2023-11-19 07:48:15,351 INFO L125 PetriNetUnfolderBase]: For 6715/6723 co-relation queries the response was YES. [2023-11-19 07:48:15,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6090 conditions, 1054 events. 438/1054 cut-off events. For 6715/6723 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6159 event pairs, 59 based on Foata normal form. 23/1042 useless extension candidates. Maximal degree in co-relation 5960. Up to 964 conditions per place. [2023-11-19 07:48:15,368 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 263 selfloop transitions, 13 changer transitions 1/279 dead transitions. [2023-11-19 07:48:15,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 279 transitions, 3263 flow [2023-11-19 07:48:15,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:48:15,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:48:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 633 transitions. [2023-11-19 07:48:15,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.327979274611399 [2023-11-19 07:48:15,373 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 633 transitions. [2023-11-19 07:48:15,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 633 transitions. [2023-11-19 07:48:15,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:15,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 633 transitions. [2023-11-19 07:48:15,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 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) [2023-11-19 07:48:15,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 193.0) internal successors, (2123), 11 states have internal predecessors, (2123), 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) [2023-11-19 07:48:15,380 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 193.0) internal successors, (2123), 11 states have internal predecessors, (2123), 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) [2023-11-19 07:48:15,381 INFO L175 Difference]: Start difference. First operand has 125 places, 248 transitions, 2550 flow. Second operand 10 states and 633 transitions. [2023-11-19 07:48:15,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 279 transitions, 3263 flow [2023-11-19 07:48:15,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 279 transitions, 3198 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-19 07:48:15,430 INFO L231 Difference]: Finished difference. Result has 121 places, 247 transitions, 2512 flow [2023-11-19 07:48:15,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2478, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2512, PETRI_PLACES=121, PETRI_TRANSITIONS=247} [2023-11-19 07:48:15,431 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 62 predicate places. [2023-11-19 07:48:15,431 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 247 transitions, 2512 flow [2023-11-19 07:48:15,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 57.55172413793103) internal successors, (1669), 29 states have internal predecessors, (1669), 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) [2023-11-19 07:48:15,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:15,432 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:15,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:15,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:15,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:48:15,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:15,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1872086443, now seen corresponding path program 2 times [2023-11-19 07:48:15,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:15,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516759614] [2023-11-19 07:48:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:15,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:16,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:16,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516759614] [2023-11-19 07:48:16,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516759614] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:16,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863909915] [2023-11-19 07:48:16,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:48:16,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:16,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:16,429 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:16,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:48:16,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:48:16,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:48:16,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 07:48:16,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:16,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-19 07:48:16,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:48:16,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:48:16,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:48:16,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 07:48:17,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 07:48:17,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:17,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:17,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:17,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:17,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:17,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:17,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:17,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:48:17,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 07:48:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:17,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:17,372 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_709 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_709 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_709 (Array Int Int))) (= (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_709 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 3))))) is different from false [2023-11-19 07:48:17,410 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 3)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store |c_#race| |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|))) is different from false [2023-11-19 07:48:17,495 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) .cse1) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 2)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-19 07:48:17,515 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_threadThread1of1ForFork0_~p~0.offset 2)) (.cse1 (+ c_threadThread1of1ForFork0_~p~0.offset 3))) (let ((.cse0 (store |c_#race| c_threadThread1of1ForFork0_~p~0.base (store (store (select |c_#race| c_threadThread1of1ForFork0_~p~0.base) .cse2 |c_threadThread1of1ForFork0_#t~nondet4|) .cse1 |c_threadThread1of1ForFork0_#t~nondet4|)))) (and (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= |c_threadThread1of1ForFork0_#t~nondet4| (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) .cse1))) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) (+ c_threadThread1of1ForFork0_~p~0.offset 1)) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) c_threadThread1of1ForFork0_~p~0.offset) |c_threadThread1of1ForFork0_#t~nondet4|)) (forall ((v_ArrVal_708 (Array Int Int)) (v_ArrVal_709 (Array Int Int))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#datas~0#1.base| v_ArrVal_708) |c_ULTIMATE.start_main_~#tids~0#1.base| v_ArrVal_709) c_threadThread1of1ForFork0_~p~0.base) .cse2) |c_threadThread1of1ForFork0_#t~nondet4|))))) is different from false [2023-11-19 07:48:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2023-11-19 07:48:17,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863909915] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:17,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:17,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-11-19 07:48:17,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891639484] [2023-11-19 07:48:17,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:17,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-19 07:48:17,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:17,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-19 07:48:17,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=548, Unknown=4, NotChecked=204, Total=870 [2023-11-19 07:48:17,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2023-11-19 07:48:17,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 247 transitions, 2512 flow. Second operand has 30 states, 30 states have (on average 49.93333333333333) internal successors, (1498), 30 states have internal predecessors, (1498), 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) [2023-11-19 07:48:17,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:17,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2023-11-19 07:48:17,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:19,814 INFO L124 PetriNetUnfolderBase]: 423/1012 cut-off events. [2023-11-19 07:48:19,814 INFO L125 PetriNetUnfolderBase]: For 5427/5439 co-relation queries the response was YES. [2023-11-19 07:48:19,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5894 conditions, 1012 events. 423/1012 cut-off events. For 5427/5439 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5865 event pairs, 21 based on Foata normal form. 8/1003 useless extension candidates. Maximal degree in co-relation 5771. Up to 367 conditions per place. [2023-11-19 07:48:19,829 INFO L140 encePairwiseOnDemand]: 177/193 looper letters, 273 selfloop transitions, 119 changer transitions 9/403 dead transitions. [2023-11-19 07:48:19,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 403 transitions, 4144 flow [2023-11-19 07:48:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:48:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-19 07:48:19,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 993 transitions. [2023-11-19 07:48:19,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3026516306004267 [2023-11-19 07:48:19,835 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 993 transitions. [2023-11-19 07:48:19,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 993 transitions. [2023-11-19 07:48:19,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:19,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 993 transitions. [2023-11-19 07:48:19,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 58.411764705882355) internal successors, (993), 17 states have internal predecessors, (993), 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) [2023-11-19 07:48:19,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-11-19 07:48:19,847 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-11-19 07:48:19,847 INFO L175 Difference]: Start difference. First operand has 121 places, 247 transitions, 2512 flow. Second operand 17 states and 993 transitions. [2023-11-19 07:48:19,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 403 transitions, 4144 flow [2023-11-19 07:48:19,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 403 transitions, 4126 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-19 07:48:19,899 INFO L231 Difference]: Finished difference. Result has 133 places, 250 transitions, 2923 flow [2023-11-19 07:48:19,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2494, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2923, PETRI_PLACES=133, PETRI_TRANSITIONS=250} [2023-11-19 07:48:19,900 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 74 predicate places. [2023-11-19 07:48:19,900 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 250 transitions, 2923 flow [2023-11-19 07:48:19,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 49.93333333333333) internal successors, (1498), 30 states have internal predecessors, (1498), 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) [2023-11-19 07:48:19,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:19,901 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-19 07:48:19,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:20,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45be22d6-3700-4ce2-9577-f41d5ff5559f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:48:20,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-19 07:48:20,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash 280364343, now seen corresponding path program 1 times [2023-11-19 07:48:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:20,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126771955] [2023-11-19 07:48:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:20,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:20,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:20,233 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:48:20,234 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-19 07:48:20,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-19 07:48:20,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-19 07:48:20,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-19 07:48:20,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-19 07:48:20,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-19 07:48:20,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-19 07:48:20,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-19 07:48:20,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-19 07:48:20,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:48:20,238 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:20,241 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:48:20,241 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:48:20,281 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:48:20,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 140 transitions, 296 flow [2023-11-19 07:48:20,321 INFO L124 PetriNetUnfolderBase]: 11/335 cut-off events. [2023-11-19 07:48:20,322 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:48:20,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 335 events. 11/335 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 762 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 190. Up to 8 conditions per place. [2023-11-19 07:48:20,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 140 transitions, 296 flow [2023-11-19 07:48:20,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 140 transitions, 296 flow [2023-11-19 07:48:20,325 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:20,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 140 transitions, 296 flow [2023-11-19 07:48:20,326 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 140 transitions, 296 flow [2023-11-19 07:48:20,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 140 transitions, 296 flow [2023-11-19 07:48:20,363 INFO L124 PetriNetUnfolderBase]: 11/335 cut-off events. [2023-11-19 07:48:20,363 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:48:20,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 335 events. 11/335 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 762 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 190. Up to 8 conditions per place. [2023-11-19 07:48:20,371 INFO L119 LiptonReduction]: Number of co-enabled transitions 5664