./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:57:36,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:57:36,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:57:36,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:57:36,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:57:36,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:57:36,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:57:36,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:57:36,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:57:36,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:57:36,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:57:36,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:57:36,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:57:36,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:57:36,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:57:36,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:57:36,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:57:36,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:57:36,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:57:36,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:57:36,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:57:36,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:57:36,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:57:36,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:57:36,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:57:36,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:57:36,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:57:36,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:57:36,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:57:36,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:57:36,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:57:36,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:57:36,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:57:36,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:57:36,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:57:36,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:57:36,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:57:36,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:57:36,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:57:36,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:57:36,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:57:36,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 16:57:36,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:57:36,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:57:36,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:57:36,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:57:36,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:57:36,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:57:36,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:57:36,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:57:36,226 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:57:36,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:57:36,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:57:36,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:57:36,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:57:36,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:57:36,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:57:36,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:57:36,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:57:36,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:57:36,228 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 16:57:36,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:57:36,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:57:36,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:57:36,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:57:36,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:57:36,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:57:36,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:57:36,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:36,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:57:36,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:57:36,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:57:36,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:57:36,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:57:36,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:57:36,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:57:36,231 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:57:36,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:57:36,231 INFO L138 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_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-11-25 16:57:36,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:57:36,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:57:36,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:57:36,622 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:57:36,623 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:57:36,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-25 16:57:39,902 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:57:40,187 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:57:40,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-25 16:57:40,195 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/data/672b10632/ef70448e910541baa9c9b020c378d7cb/FLAGc1f52acaf [2022-11-25 16:57:40,217 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/data/672b10632/ef70448e910541baa9c9b020c378d7cb [2022-11-25 16:57:40,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:57:40,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:57:40,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:40,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:57:40,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:57:40,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68449ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40, skipping insertion in model container [2022-11-25 16:57:40,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:57:40,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:57:40,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:40,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:40,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:40,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:40,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:40,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:40,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-25 16:57:40,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:40,513 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:57:40,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:40,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:40,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:40,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:40,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:57:40,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:57:40,563 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-25 16:57:40,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:40,592 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:57:40,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40 WrapperNode [2022-11-25 16:57:40,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:40,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:40,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:57:40,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:57:40,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,683 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-25 16:57:40,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:40,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:57:40,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:57:40,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:57:40,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:57:40,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:57:40,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:57:40,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:57:40,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (1/1) ... [2022-11-25 16:57:40,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:40,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:40,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:57:40,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:57:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:57:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:57:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:57:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:57:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 16:57:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 16:57:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 16:57:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 16:57:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 16:57:40,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 16:57:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:57:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 16:57:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 16:57:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:57:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:57:40,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:57:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:57:40,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:57:41,110 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:57:41,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:57:42,025 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:57:42,211 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:57:42,212 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 16:57:42,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:42 BoogieIcfgContainer [2022-11-25 16:57:42,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:57:42,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:57:42,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:57:42,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:57:42,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:57:40" (1/3) ... [2022-11-25 16:57:42,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b501ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:42, skipping insertion in model container [2022-11-25 16:57:42,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:40" (2/3) ... [2022-11-25 16:57:42,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b501ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:42, skipping insertion in model container [2022-11-25 16:57:42,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:42" (3/3) ... [2022-11-25 16:57:42,224 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-11-25 16:57:42,233 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:57:42,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:57:42,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-25 16:57:42,244 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:57:42,408 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 16:57:42,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-25 16:57:42,787 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-25 16:57:42,787 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 16:57:42,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 623 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-25 16:57:42,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-25 16:57:42,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-25 16:57:42,823 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:57:42,856 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 478 transitions, 974 flow [2022-11-25 16:57:42,865 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 478 transitions, 974 flow [2022-11-25 16:57:42,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 464 places, 478 transitions, 974 flow [2022-11-25 16:57:43,000 INFO L130 PetriNetUnfolder]: 24/478 cut-off events. [2022-11-25 16:57:43,001 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 16:57:43,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 478 events. 24/478 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 620 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-25 16:57:43,014 INFO L119 LiptonReduction]: Number of co-enabled transitions 13362 [2022-11-25 17:02:08,027 INFO L134 LiptonReduction]: Checked pairs total: 92756 [2022-11-25 17:02:08,028 INFO L136 LiptonReduction]: Total number of compositions: 568 [2022-11-25 17:02:08,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:02:08,051 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55468c86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:02:08,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-25 17:02:08,053 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:02:08,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:02:08,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:08,054 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:02:08,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:08,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2067, now seen corresponding path program 1 times [2022-11-25 17:02:08,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:08,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468080664] [2022-11-25 17:02:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:08,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468080664] [2022-11-25 17:02:08,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468080664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:08,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:08,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:02:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976439099] [2022-11-25 17:02:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:08,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:02:08,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:02:08,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:02:08,216 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 1096 [2022-11-25 17:02:08,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 486.5) internal successors, (973), 2 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:08,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:08,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 1096 [2022-11-25 17:02:08,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:08,844 INFO L130 PetriNetUnfolder]: 1107/2339 cut-off events. [2022-11-25 17:02:08,844 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-11-25 17:02:08,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3886 conditions, 2339 events. 1107/2339 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16391 event pairs, 534 based on Foata normal form. 366/2032 useless extension candidates. Maximal degree in co-relation 3529. Up to 1444 conditions per place. [2022-11-25 17:02:08,863 INFO L137 encePairwiseOnDemand]: 1042/1096 looper letters, 32 selfloop transitions, 0 changer transitions 3/74 dead transitions. [2022-11-25 17:02:08,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 74 transitions, 236 flow [2022-11-25 17:02:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:02:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:02:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1061 transitions. [2022-11-25 17:02:08,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4840328467153285 [2022-11-25 17:02:08,886 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1061 transitions. [2022-11-25 17:02:08,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1061 transitions. [2022-11-25 17:02:08,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:08,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1061 transitions. [2022-11-25 17:02:08,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 530.5) internal successors, (1061), 2 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:08,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:08,920 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:08,923 INFO L175 Difference]: Start difference. First operand has 126 places, 128 transitions, 274 flow. Second operand 2 states and 1061 transitions. [2022-11-25 17:02:08,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 74 transitions, 236 flow [2022-11-25 17:02:08,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 74 transitions, 224 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 17:02:08,934 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 146 flow [2022-11-25 17:02:08,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=146, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2022-11-25 17:02:08,941 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -56 predicate places. [2022-11-25 17:02:08,941 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 146 flow [2022-11-25 17:02:08,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 486.5) internal successors, (973), 2 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:08,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:08,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:08,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:02:08,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash 55408050, now seen corresponding path program 1 times [2022-11-25 17:02:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:08,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903898121] [2022-11-25 17:02:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:08,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:09,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:09,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903898121] [2022-11-25 17:02:09,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903898121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:09,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:09,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:02:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082446362] [2022-11-25 17:02:09,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:09,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:02:09,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:02:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:02:09,694 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1096 [2022-11-25 17:02:09,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:09,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:09,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1096 [2022-11-25 17:02:09,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:10,355 INFO L130 PetriNetUnfolder]: 1093/2317 cut-off events. [2022-11-25 17:02:10,356 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-25 17:02:10,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3782 conditions, 2317 events. 1093/2317 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16214 event pairs, 528 based on Foata normal form. 0/1652 useless extension candidates. Maximal degree in co-relation 3779. Up to 1421 conditions per place. [2022-11-25 17:02:10,370 INFO L137 encePairwiseOnDemand]: 1093/1096 looper letters, 31 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2022-11-25 17:02:10,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 214 flow [2022-11-25 17:02:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:02:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:02:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1456 transitions. [2022-11-25 17:02:10,375 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44282238442822386 [2022-11-25 17:02:10,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1456 transitions. [2022-11-25 17:02:10,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1456 transitions. [2022-11-25 17:02:10,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:10,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1456 transitions. [2022-11-25 17:02:10,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:10,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:10,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:10,389 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 146 flow. Second operand 3 states and 1456 transitions. [2022-11-25 17:02:10,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 214 flow [2022-11-25 17:02:10,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:02:10,391 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 158 flow [2022-11-25 17:02:10,391 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2022-11-25 17:02:10,392 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -56 predicate places. [2022-11-25 17:02:10,392 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 158 flow [2022-11-25 17:02:10,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:10,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:10,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:10,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:02:10,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:10,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:10,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1480690677, now seen corresponding path program 1 times [2022-11-25 17:02:10,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:10,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943871237] [2022-11-25 17:02:10,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:10,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:02:11,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:11,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943871237] [2022-11-25 17:02:11,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943871237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:11,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:11,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:02:11,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877982777] [2022-11-25 17:02:11,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:11,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:02:11,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:11,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:02:11,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:02:12,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 1096 [2022-11-25 17:02:12,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 460.1666666666667) internal successors, (2761), 6 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:12,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:12,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 1096 [2022-11-25 17:02:12,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:15,490 INFO L130 PetriNetUnfolder]: 3069/5363 cut-off events. [2022-11-25 17:02:15,490 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-25 17:02:15,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9518 conditions, 5363 events. 3069/5363 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 36328 event pairs, 589 based on Foata normal form. 0/3742 useless extension candidates. Maximal degree in co-relation 9513. Up to 2134 conditions per place. [2022-11-25 17:02:15,527 INFO L137 encePairwiseOnDemand]: 1080/1096 looper letters, 90 selfloop transitions, 17 changer transitions 0/135 dead transitions. [2022-11-25 17:02:15,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 135 transitions, 506 flow [2022-11-25 17:02:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:02:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:02:15,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2856 transitions. [2022-11-25 17:02:15,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4343065693430657 [2022-11-25 17:02:15,536 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2856 transitions. [2022-11-25 17:02:15,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2856 transitions. [2022-11-25 17:02:15,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:15,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2856 transitions. [2022-11-25 17:02:15,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:15,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:15,563 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:15,563 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 158 flow. Second operand 6 states and 2856 transitions. [2022-11-25 17:02:15,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 135 transitions, 506 flow [2022-11-25 17:02:15,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 135 transitions, 502 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:02:15,569 INFO L231 Difference]: Finished difference. Result has 79 places, 88 transitions, 284 flow [2022-11-25 17:02:15,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=284, PETRI_PLACES=79, PETRI_TRANSITIONS=88} [2022-11-25 17:02:15,571 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -47 predicate places. [2022-11-25 17:02:15,571 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 88 transitions, 284 flow [2022-11-25 17:02:15,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 460.1666666666667) internal successors, (2761), 6 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:15,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:15,573 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:15,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:02:15,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:15,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1343244171, now seen corresponding path program 1 times [2022-11-25 17:02:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:15,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782766200] [2022-11-25 17:02:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:15,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:02:15,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:15,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782766200] [2022-11-25 17:02:15,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782766200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:15,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:15,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:02:15,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436254560] [2022-11-25 17:02:15,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:15,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:02:15,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:15,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:02:15,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:02:15,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 1096 [2022-11-25 17:02:15,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 88 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 481.0) internal successors, (1443), 3 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:15,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:15,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 1096 [2022-11-25 17:02:15,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:17,242 INFO L130 PetriNetUnfolder]: 3143/5897 cut-off events. [2022-11-25 17:02:17,243 INFO L131 PetriNetUnfolder]: For 2155/2260 co-relation queries the response was YES. [2022-11-25 17:02:17,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12744 conditions, 5897 events. 3143/5897 cut-off events. For 2155/2260 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 42331 event pairs, 624 based on Foata normal form. 18/4819 useless extension candidates. Maximal degree in co-relation 12735. Up to 2484 conditions per place. [2022-11-25 17:02:17,294 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 62 selfloop transitions, 6 changer transitions 0/113 dead transitions. [2022-11-25 17:02:17,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 113 transitions, 509 flow [2022-11-25 17:02:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:02:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:02:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1486 transitions. [2022-11-25 17:02:17,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4519464720194647 [2022-11-25 17:02:17,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1486 transitions. [2022-11-25 17:02:17,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1486 transitions. [2022-11-25 17:02:17,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:17,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1486 transitions. [2022-11-25 17:02:17,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:17,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:17,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:17,313 INFO L175 Difference]: Start difference. First operand has 79 places, 88 transitions, 284 flow. Second operand 3 states and 1486 transitions. [2022-11-25 17:02:17,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 113 transitions, 509 flow [2022-11-25 17:02:17,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 113 transitions, 509 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:02:17,328 INFO L231 Difference]: Finished difference. Result has 81 places, 91 transitions, 328 flow [2022-11-25 17:02:17,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=81, PETRI_TRANSITIONS=91} [2022-11-25 17:02:17,330 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -45 predicate places. [2022-11-25 17:02:17,330 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 91 transitions, 328 flow [2022-11-25 17:02:17,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.0) internal successors, (1443), 3 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:17,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:17,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:17,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:02:17,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:17,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:17,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1219678314, now seen corresponding path program 1 times [2022-11-25 17:02:17,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:17,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317176871] [2022-11-25 17:02:17,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:17,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:02:17,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:17,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317176871] [2022-11-25 17:02:17,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317176871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:17,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:17,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:02:17,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592907605] [2022-11-25 17:02:17,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:17,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:02:17,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:02:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:02:17,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 472 out of 1096 [2022-11-25 17:02:17,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 91 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 474.75) internal successors, (1899), 4 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:17,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:17,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 472 of 1096 [2022-11-25 17:02:17,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:19,212 INFO L130 PetriNetUnfolder]: 3174/6065 cut-off events. [2022-11-25 17:02:19,212 INFO L131 PetriNetUnfolder]: For 3239/3370 co-relation queries the response was YES. [2022-11-25 17:02:19,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13343 conditions, 6065 events. 3174/6065 cut-off events. For 3239/3370 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 44806 event pairs, 1372 based on Foata normal form. 36/5064 useless extension candidates. Maximal degree in co-relation 13333. Up to 4004 conditions per place. [2022-11-25 17:02:19,251 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 42 selfloop transitions, 6 changer transitions 0/93 dead transitions. [2022-11-25 17:02:19,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 93 transitions, 428 flow [2022-11-25 17:02:19,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:02:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:02:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1925 transitions. [2022-11-25 17:02:19,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43909671532846717 [2022-11-25 17:02:19,257 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1925 transitions. [2022-11-25 17:02:19,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1925 transitions. [2022-11-25 17:02:19,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:19,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1925 transitions. [2022-11-25 17:02:19,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 481.25) internal successors, (1925), 4 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1096.0) internal successors, (5480), 5 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,273 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1096.0) internal successors, (5480), 5 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,273 INFO L175 Difference]: Start difference. First operand has 81 places, 91 transitions, 328 flow. Second operand 4 states and 1925 transitions. [2022-11-25 17:02:19,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 93 transitions, 428 flow [2022-11-25 17:02:19,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 93 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:02:19,286 INFO L231 Difference]: Finished difference. Result has 84 places, 93 transitions, 350 flow [2022-11-25 17:02:19,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=84, PETRI_TRANSITIONS=93} [2022-11-25 17:02:19,287 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -42 predicate places. [2022-11-25 17:02:19,287 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 93 transitions, 350 flow [2022-11-25 17:02:19,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 474.75) internal successors, (1899), 4 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:19,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:19,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:19,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:02:19,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:19,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:19,290 INFO L85 PathProgramCache]: Analyzing trace with hash -469852400, now seen corresponding path program 1 times [2022-11-25 17:02:19,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:19,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52854531] [2022-11-25 17:02:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:19,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:02:19,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:19,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52854531] [2022-11-25 17:02:19,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52854531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:19,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:19,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:02:19,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539775402] [2022-11-25 17:02:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:19,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:02:19,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:02:19,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:02:21,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 1096 [2022-11-25 17:02:21,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 93 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 468.0) internal successors, (2808), 6 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:21,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:21,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 1096 [2022-11-25 17:02:21,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:25,789 INFO L130 PetriNetUnfolder]: 17601/25895 cut-off events. [2022-11-25 17:02:25,789 INFO L131 PetriNetUnfolder]: For 14583/15298 co-relation queries the response was YES. [2022-11-25 17:02:25,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60648 conditions, 25895 events. 17601/25895 cut-off events. For 14583/15298 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 175859 event pairs, 3576 based on Foata normal form. 232/20720 useless extension candidates. Maximal degree in co-relation 60636. Up to 13608 conditions per place. [2022-11-25 17:02:26,105 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 155 selfloop transitions, 25 changer transitions 0/219 dead transitions. [2022-11-25 17:02:26,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 219 transitions, 1283 flow [2022-11-25 17:02:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:02:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:02:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2903 transitions. [2022-11-25 17:02:26,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4414537712895377 [2022-11-25 17:02:26,117 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2903 transitions. [2022-11-25 17:02:26,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2903 transitions. [2022-11-25 17:02:26,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:26,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2903 transitions. [2022-11-25 17:02:26,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 483.8333333333333) internal successors, (2903), 6 states have internal predecessors, (2903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,154 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,154 INFO L175 Difference]: Start difference. First operand has 84 places, 93 transitions, 350 flow. Second operand 6 states and 2903 transitions. [2022-11-25 17:02:26,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 219 transitions, 1283 flow [2022-11-25 17:02:26,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 219 transitions, 1282 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:02:26,194 INFO L231 Difference]: Finished difference. Result has 93 places, 117 transitions, 589 flow [2022-11-25 17:02:26,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=589, PETRI_PLACES=93, PETRI_TRANSITIONS=117} [2022-11-25 17:02:26,197 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -33 predicate places. [2022-11-25 17:02:26,197 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 117 transitions, 589 flow [2022-11-25 17:02:26,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 468.0) internal successors, (2808), 6 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:26,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:26,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:26,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:02:26,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:26,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:26,200 INFO L85 PathProgramCache]: Analyzing trace with hash 813610032, now seen corresponding path program 1 times [2022-11-25 17:02:26,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:26,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340305432] [2022-11-25 17:02:26,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:26,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:02:26,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:26,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340305432] [2022-11-25 17:02:26,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340305432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:26,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237934818] [2022-11-25 17:02:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:26,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:26,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:26,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:26,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:02:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:26,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:02:26,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:02:27,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:02:27,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237934818] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:27,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:27,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 17:02:27,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251224141] [2022-11-25 17:02:27,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:27,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:02:27,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:27,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:02:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:02:29,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 1096 [2022-11-25 17:02:29,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 117 transitions, 589 flow. Second operand has 12 states, 12 states have (on average 463.9166666666667) internal successors, (5567), 12 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:29,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:29,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 1096 [2022-11-25 17:02:29,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:31,532 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1979] L61-1-->L61-6: Formula: (let ((.cse7 (* |v_thread2Thread1of1ForFork0_~i~1#1_1152| 4))) (let ((.cse2 (+ v_~A~0.offset_1604 .cse7)) (.cse9 (+ v_~B~0.offset_1506 .cse7)) (.cse1 (+ |v_thread2Thread1of1ForFork0_~i~1#1_1152| 1)) (.cse4 (+ v_~C~0.offset_864 .cse7)) (.cse0 (+ |v_thread2Thread1of1ForFork0_plus_~a#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|))) (and (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|) (= |v_#race~A~0_1811| 0) (<= |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483647) (= .cse0 |v_thread2Thread1of1ForFork0_plus_#res#1_903|) (= .cse1 v_~p~0_765) (= |v_thread2Thread1of1ForFork0_plus_#in~a#1_903| |v_thread2Thread1of1ForFork0_plus_~a#1_903|) (= (select (select |v_#memory_int_2340| v_~A~0.base_1604) .cse2) |v_thread2Thread1of1ForFork0_plus_#in~a#1_903|) (= |v_#race~N~0_718| 0) (= |v_#race_7020| (let ((.cse3 (let ((.cse8 (store |v_#race_7021| v_~A~0.base_1604 (store (store (store (store (select |v_#race_7021| v_~A~0.base_1604) .cse2 0) (+ v_~A~0.offset_1604 .cse7 1) 0) (+ 2 v_~A~0.offset_1604 .cse7) 0) (+ v_~A~0.offset_1604 3 .cse7) 0)))) (store .cse8 v_~B~0.base_1506 (store (store (store (store (select .cse8 v_~B~0.base_1506) .cse9 0) (+ v_~B~0.offset_1506 .cse7 1) 0) (+ 2 v_~B~0.offset_1506 .cse7) 0) (+ 3 v_~B~0.offset_1506 .cse7) 0))))) (store .cse3 v_~C~0.base_864 (let ((.cse6 (+ v_~C~0.offset_864 .cse7 1))) (let ((.cse5 (select (select |v_#race_7020| v_~C~0.base_864) .cse6))) (store (store (store (store (select .cse3 v_~C~0.base_864) .cse4 .cse5) .cse6 .cse5) (+ v_~C~0.offset_864 2 .cse7) .cse5) (+ v_~C~0.offset_864 3 .cse7) .cse5)))))) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903| |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|) (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| (select (select |v_#memory_int_2340| v_~B~0.base_1506) .cse9)) (<= 0 (+ |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483648)) (= .cse1 |v_thread2Thread1of1ForFork0_~i~1#1_1151|) (= |v_#memory_int_2339| (store |v_#memory_int_2340| v_~C~0.base_864 (store (select |v_#memory_int_2340| v_~C~0.base_864) .cse4 |v_thread2Thread1of1ForFork0_plus_#res#1_903|))) (= |v_#race~B~0_1601| 0) (< |v_thread2Thread1of1ForFork0_~i~1#1_1152| v_~N~0_403) (= |v_#race~C~0_2649| 0) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903| (ite (or (<= .cse0 2147483647) (<= |v_thread2Thread1of1ForFork0_plus_~b#1_903| 0)) 1 0))))) InVars {#race=|v_#race_7021|, ~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, ~A~0.offset=v_~A~0.offset_1604, ~C~0.base=v_~C~0.base_864, #race~N~0=|v_#race~N~0_718|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2340|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1152|, ~N~0=v_~N~0_403, ~B~0.offset=v_~B~0.offset_1506} OutVars{~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, thread2Thread1of1ForFork0_#t~ret11#1=|v_thread2Thread1of1ForFork0_#t~ret11#1_903|, ~C~0.base=v_~C~0.base_864, thread2Thread1of1ForFork0_plus_~a#1=|v_thread2Thread1of1ForFork0_plus_~a#1_903|, #race~N~0=|v_#race~N~0_718|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1151|, #race~B~0=|v_#race~B~0_1601|, thread2Thread1of1ForFork0_#t~mem9#1=|v_thread2Thread1of1ForFork0_#t~mem9#1_1571|, thread2Thread1of1ForFork0_#t~nondet13#1=|v_thread2Thread1of1ForFork0_#t~nondet13#1_665|, thread2Thread1of1ForFork0_plus_#in~b#1=|v_thread2Thread1of1ForFork0_plus_#in~b#1_903|, thread2Thread1of1ForFork0_plus_~b#1=|v_thread2Thread1of1ForFork0_plus_~b#1_903|, thread2Thread1of1ForFork0_plus_#res#1=|v_thread2Thread1of1ForFork0_plus_#res#1_903|, ~B~0.offset=v_~B~0.offset_1506, thread2Thread1of1ForFork0_#t~nondet12#1=|v_thread2Thread1of1ForFork0_#t~nondet12#1_903|, #race=|v_#race_7020|, thread2Thread1of1ForFork0_plus_#in~a#1=|v_thread2Thread1of1ForFork0_plus_#in~a#1_903|, thread2Thread1of1ForFork0_#t~mem10#1=|v_thread2Thread1of1ForFork0_#t~mem10#1_1133|, ~N~0=v_~N~0_403, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903|, ~A~0.offset=v_~A~0.offset_1604, #race~p~0=|v_#race~p~0_1130|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2339|, ~p~0=v_~p~0_765, #race~C~0=|v_#race~C~0_2649|, thread2Thread1of1ForFork0_#t~post8#1=|v_thread2Thread1of1ForFork0_#t~post8#1_287|, #race~A~0=|v_#race~A~0_1811|} AuxVars[] AssignedVars[#race, thread2Thread1of1ForFork0_plus_#in~a#1, thread2Thread1of1ForFork0_#t~ret11#1, thread2Thread1of1ForFork0_plus_~a#1, thread2Thread1of1ForFork0_#t~mem10#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_~i~1#1, #race~B~0, thread2Thread1of1ForFork0_#t~mem9#1, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#t~nondet13#1, thread2Thread1of1ForFork0_plus_#in~b#1, thread2Thread1of1ForFork0_plus_~b#1, thread2Thread1of1ForFork0_plus_#res#1, #race~p~0, #memory_int, ~p~0, thread2Thread1of1ForFork0_#t~nondet12#1, #race~C~0, thread2Thread1of1ForFork0_#t~post8#1, #race~A~0][124], [Black: 542#(and (<= 1 ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), 99#L109-6true, 522#true, Black: 547#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 519#(and (<= 1 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), Black: 548#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), Black: 549#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 311#L48-7true, 514#true, 265#L77-1true, Black: 526#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 525#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), 450#L61-6true, 534#true, Black: 527#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 3 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 524#(= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0), 545#true, 696#(and (<= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 1) (= thread1Thread1of1ForFork2_~i~0 1) (<= ~N~0 1) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 541#(<= 1 ~N~0)]) [2022-11-25 17:02:31,532 INFO L383 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2022-11-25 17:02:31,532 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-11-25 17:02:31,532 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-11-25 17:02:31,532 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-11-25 17:02:31,684 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1979] L61-1-->L61-6: Formula: (let ((.cse7 (* |v_thread2Thread1of1ForFork0_~i~1#1_1152| 4))) (let ((.cse2 (+ v_~A~0.offset_1604 .cse7)) (.cse9 (+ v_~B~0.offset_1506 .cse7)) (.cse1 (+ |v_thread2Thread1of1ForFork0_~i~1#1_1152| 1)) (.cse4 (+ v_~C~0.offset_864 .cse7)) (.cse0 (+ |v_thread2Thread1of1ForFork0_plus_~a#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|))) (and (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| |v_thread2Thread1of1ForFork0_plus_~b#1_903|) (= |v_#race~A~0_1811| 0) (<= |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483647) (= .cse0 |v_thread2Thread1of1ForFork0_plus_#res#1_903|) (= .cse1 v_~p~0_765) (= |v_thread2Thread1of1ForFork0_plus_#in~a#1_903| |v_thread2Thread1of1ForFork0_plus_~a#1_903|) (= (select (select |v_#memory_int_2340| v_~A~0.base_1604) .cse2) |v_thread2Thread1of1ForFork0_plus_#in~a#1_903|) (= |v_#race~N~0_718| 0) (= |v_#race_7020| (let ((.cse3 (let ((.cse8 (store |v_#race_7021| v_~A~0.base_1604 (store (store (store (store (select |v_#race_7021| v_~A~0.base_1604) .cse2 0) (+ v_~A~0.offset_1604 .cse7 1) 0) (+ 2 v_~A~0.offset_1604 .cse7) 0) (+ v_~A~0.offset_1604 3 .cse7) 0)))) (store .cse8 v_~B~0.base_1506 (store (store (store (store (select .cse8 v_~B~0.base_1506) .cse9 0) (+ v_~B~0.offset_1506 .cse7 1) 0) (+ 2 v_~B~0.offset_1506 .cse7) 0) (+ 3 v_~B~0.offset_1506 .cse7) 0))))) (store .cse3 v_~C~0.base_864 (let ((.cse6 (+ v_~C~0.offset_864 .cse7 1))) (let ((.cse5 (select (select |v_#race_7020| v_~C~0.base_864) .cse6))) (store (store (store (store (select .cse3 v_~C~0.base_864) .cse4 .cse5) .cse6 .cse5) (+ v_~C~0.offset_864 2 .cse7) .cse5) (+ v_~C~0.offset_864 3 .cse7) .cse5)))))) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903| |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|) (= |v_thread2Thread1of1ForFork0_plus_#in~b#1_903| (select (select |v_#memory_int_2340| v_~B~0.base_1506) .cse9)) (<= 0 (+ |v_thread2Thread1of1ForFork0_plus_#res#1_903| 2147483648)) (= .cse1 |v_thread2Thread1of1ForFork0_~i~1#1_1151|) (= |v_#memory_int_2339| (store |v_#memory_int_2340| v_~C~0.base_864 (store (select |v_#memory_int_2340| v_~C~0.base_864) .cse4 |v_thread2Thread1of1ForFork0_plus_#res#1_903|))) (= |v_#race~B~0_1601| 0) (< |v_thread2Thread1of1ForFork0_~i~1#1_1152| v_~N~0_403) (= |v_#race~C~0_2649| 0) (= |v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903| (ite (or (<= .cse0 2147483647) (<= |v_thread2Thread1of1ForFork0_plus_~b#1_903| 0)) 1 0))))) InVars {#race=|v_#race_7021|, ~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, ~A~0.offset=v_~A~0.offset_1604, ~C~0.base=v_~C~0.base_864, #race~N~0=|v_#race~N~0_718|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2340|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1152|, ~N~0=v_~N~0_403, ~B~0.offset=v_~B~0.offset_1506} OutVars{~A~0.base=v_~A~0.base_1604, ~B~0.base=v_~B~0.base_1506, thread2Thread1of1ForFork0_#t~ret11#1=|v_thread2Thread1of1ForFork0_#t~ret11#1_903|, ~C~0.base=v_~C~0.base_864, thread2Thread1of1ForFork0_plus_~a#1=|v_thread2Thread1of1ForFork0_plus_~a#1_903|, #race~N~0=|v_#race~N~0_718|, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1_903|, thread2Thread1of1ForFork0_~i~1#1=|v_thread2Thread1of1ForFork0_~i~1#1_1151|, #race~B~0=|v_#race~B~0_1601|, thread2Thread1of1ForFork0_#t~mem9#1=|v_thread2Thread1of1ForFork0_#t~mem9#1_1571|, thread2Thread1of1ForFork0_#t~nondet13#1=|v_thread2Thread1of1ForFork0_#t~nondet13#1_665|, thread2Thread1of1ForFork0_plus_#in~b#1=|v_thread2Thread1of1ForFork0_plus_#in~b#1_903|, thread2Thread1of1ForFork0_plus_~b#1=|v_thread2Thread1of1ForFork0_plus_~b#1_903|, thread2Thread1of1ForFork0_plus_#res#1=|v_thread2Thread1of1ForFork0_plus_#res#1_903|, ~B~0.offset=v_~B~0.offset_1506, thread2Thread1of1ForFork0_#t~nondet12#1=|v_thread2Thread1of1ForFork0_#t~nondet12#1_903|, #race=|v_#race_7020|, thread2Thread1of1ForFork0_plus_#in~a#1=|v_thread2Thread1of1ForFork0_plus_#in~a#1_903|, thread2Thread1of1ForFork0_#t~mem10#1=|v_thread2Thread1of1ForFork0_#t~mem10#1_1133|, ~N~0=v_~N~0_403, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1=|v_thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1_903|, ~A~0.offset=v_~A~0.offset_1604, #race~p~0=|v_#race~p~0_1130|, ~C~0.offset=v_~C~0.offset_864, #memory_int=|v_#memory_int_2339|, ~p~0=v_~p~0_765, #race~C~0=|v_#race~C~0_2649|, thread2Thread1of1ForFork0_#t~post8#1=|v_thread2Thread1of1ForFork0_#t~post8#1_287|, #race~A~0=|v_#race~A~0_1811|} AuxVars[] AssignedVars[#race, thread2Thread1of1ForFork0_plus_#in~a#1, thread2Thread1of1ForFork0_#t~ret11#1, thread2Thread1of1ForFork0_plus_~a#1, thread2Thread1of1ForFork0_#t~mem10#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_~i~1#1, #race~B~0, thread2Thread1of1ForFork0_#t~mem9#1, thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#t~nondet13#1, thread2Thread1of1ForFork0_plus_#in~b#1, thread2Thread1of1ForFork0_plus_~b#1, thread2Thread1of1ForFork0_plus_#res#1, #race~p~0, #memory_int, ~p~0, thread2Thread1of1ForFork0_#t~nondet12#1, #race~C~0, thread2Thread1of1ForFork0_#t~post8#1, #race~A~0][124], [Black: 542#(and (<= 1 ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~size#1| ~N~0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), 99#L109-6true, 522#true, Black: 547#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 519#(and (<= 1 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0)), Black: 548#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), Black: 549#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 514#true, 265#L77-1true, Black: 526#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 525#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), 450#L61-6true, 534#true, Black: 527#(and (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 3 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) 2 ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0) (= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset 1)) 0)), Black: 524#(= (select (select |#race| ~A~0.base) (+ (* thread1Thread1of1ForFork2_~i~0 4) ~A~0.offset)) 0), 545#true, 696#(and (<= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 1) (= thread1Thread1of1ForFork2_~i~0 1) (<= ~N~0 1) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 541#(<= 1 ~N~0), 204#thread1EXITtrue]) [2022-11-25 17:02:31,685 INFO L383 tUnfolder$Statistics]: this new event has 29 ancestors and is cut-off event [2022-11-25 17:02:31,685 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-11-25 17:02:31,685 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-25 17:02:31,685 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-25 17:02:34,060 INFO L130 PetriNetUnfolder]: 10745/18466 cut-off events. [2022-11-25 17:02:34,060 INFO L131 PetriNetUnfolder]: For 26361/27482 co-relation queries the response was YES. [2022-11-25 17:02:34,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49621 conditions, 18466 events. 10745/18466 cut-off events. For 26361/27482 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 144157 event pairs, 2760 based on Foata normal form. 68/15177 useless extension candidates. Maximal degree in co-relation 49605. Up to 10062 conditions per place. [2022-11-25 17:02:34,226 INFO L137 encePairwiseOnDemand]: 1086/1096 looper letters, 149 selfloop transitions, 21 changer transitions 0/218 dead transitions. [2022-11-25 17:02:34,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 218 transitions, 1325 flow [2022-11-25 17:02:34,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:02:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:02:34,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4739 transitions. [2022-11-25 17:02:34,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4323905109489051 [2022-11-25 17:02:34,242 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4739 transitions. [2022-11-25 17:02:34,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4739 transitions. [2022-11-25 17:02:34,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:34,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4739 transitions. [2022-11-25 17:02:34,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 473.9) internal successors, (4739), 10 states have internal predecessors, (4739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:34,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:34,279 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:34,279 INFO L175 Difference]: Start difference. First operand has 93 places, 117 transitions, 589 flow. Second operand 10 states and 4739 transitions. [2022-11-25 17:02:34,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 218 transitions, 1325 flow [2022-11-25 17:02:34,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 218 transitions, 1325 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:02:34,348 INFO L231 Difference]: Finished difference. Result has 107 places, 132 transitions, 738 flow [2022-11-25 17:02:34,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=738, PETRI_PLACES=107, PETRI_TRANSITIONS=132} [2022-11-25 17:02:34,350 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -19 predicate places. [2022-11-25 17:02:34,351 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 132 transitions, 738 flow [2022-11-25 17:02:34,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 463.9166666666667) internal successors, (5567), 12 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:34,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:34,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:34,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:34,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:34,561 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:34,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2023793916, now seen corresponding path program 1 times [2022-11-25 17:02:34,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:34,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159687641] [2022-11-25 17:02:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:34,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:02:34,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:34,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159687641] [2022-11-25 17:02:34,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159687641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:34,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282656156] [2022-11-25 17:02:34,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:34,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:34,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:34,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:34,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:02:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:35,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:02:35,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:02:35,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:02:35,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282656156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:35,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:35,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 17:02:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14744409] [2022-11-25 17:02:35,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:35,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:02:35,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:35,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:02:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:02:36,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 1096 [2022-11-25 17:02:36,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 132 transitions, 738 flow. Second operand has 12 states, 12 states have (on average 464.0833333333333) internal successors, (5569), 12 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:36,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:36,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 1096 [2022-11-25 17:02:36,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:40,093 INFO L130 PetriNetUnfolder]: 8956/14662 cut-off events. [2022-11-25 17:02:40,094 INFO L131 PetriNetUnfolder]: For 21831/23533 co-relation queries the response was YES. [2022-11-25 17:02:40,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39733 conditions, 14662 events. 8956/14662 cut-off events. For 21831/23533 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 104505 event pairs, 1656 based on Foata normal form. 1020/13073 useless extension candidates. Maximal degree in co-relation 39712. Up to 6311 conditions per place. [2022-11-25 17:02:40,218 INFO L137 encePairwiseOnDemand]: 1086/1096 looper letters, 143 selfloop transitions, 21 changer transitions 0/214 dead transitions. [2022-11-25 17:02:40,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 214 transitions, 1339 flow [2022-11-25 17:02:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:02:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:02:40,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4744 transitions. [2022-11-25 17:02:40,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43284671532846714 [2022-11-25 17:02:40,229 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4744 transitions. [2022-11-25 17:02:40,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4744 transitions. [2022-11-25 17:02:40,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:40,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4744 transitions. [2022-11-25 17:02:40,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 474.4) internal successors, (4744), 10 states have internal predecessors, (4744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:40,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:40,258 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:40,258 INFO L175 Difference]: Start difference. First operand has 107 places, 132 transitions, 738 flow. Second operand 10 states and 4744 transitions. [2022-11-25 17:02:40,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 214 transitions, 1339 flow [2022-11-25 17:02:40,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 214 transitions, 1317 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-11-25 17:02:40,300 INFO L231 Difference]: Finished difference. Result has 118 places, 135 transitions, 797 flow [2022-11-25 17:02:40,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=797, PETRI_PLACES=118, PETRI_TRANSITIONS=135} [2022-11-25 17:02:40,301 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, -8 predicate places. [2022-11-25 17:02:40,301 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 135 transitions, 797 flow [2022-11-25 17:02:40,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 464.0833333333333) internal successors, (5569), 12 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:40,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:40,303 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:40,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:40,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39888c9-9974-4f58-980e-1ed3d1fdb90f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 17:02:40,510 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:40,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:40,510 INFO L85 PathProgramCache]: Analyzing trace with hash 224543363, now seen corresponding path program 2 times [2022-11-25 17:02:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:40,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595141968] [2022-11-25 17:02:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:40,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:02:42,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:42,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595141968] [2022-11-25 17:02:42,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595141968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:42,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:42,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:02:42,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257410941] [2022-11-25 17:02:42,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:42,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:02:42,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:02:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:02:46,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 1096 [2022-11-25 17:02:46,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 135 transitions, 797 flow. Second operand has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:46,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:46,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 1096 [2022-11-25 17:02:46,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:02:52,663 INFO L130 PetriNetUnfolder]: 18431/31504 cut-off events. [2022-11-25 17:02:52,663 INFO L131 PetriNetUnfolder]: For 70093/74121 co-relation queries the response was YES. [2022-11-25 17:02:52,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93827 conditions, 31504 events. 18431/31504 cut-off events. For 70093/74121 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 256879 event pairs, 3858 based on Foata normal form. 418/26402 useless extension candidates. Maximal degree in co-relation 93803. Up to 11976 conditions per place. [2022-11-25 17:02:52,933 INFO L137 encePairwiseOnDemand]: 1083/1096 looper letters, 195 selfloop transitions, 58 changer transitions 0/298 dead transitions. [2022-11-25 17:02:52,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 298 transitions, 2405 flow [2022-11-25 17:02:52,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:02:52,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:02:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4623 transitions. [2022-11-25 17:02:52,947 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4218065693430657 [2022-11-25 17:02:52,947 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4623 transitions. [2022-11-25 17:02:52,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4623 transitions. [2022-11-25 17:02:52,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:02:52,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4623 transitions. [2022-11-25 17:02:52,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 462.3) internal successors, (4623), 10 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:52,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:52,983 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:52,983 INFO L175 Difference]: Start difference. First operand has 118 places, 135 transitions, 797 flow. Second operand 10 states and 4623 transitions. [2022-11-25 17:02:52,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 298 transitions, 2405 flow [2022-11-25 17:02:53,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 298 transitions, 2384 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:02:53,489 INFO L231 Difference]: Finished difference. Result has 128 places, 181 transitions, 1459 flow [2022-11-25 17:02:53,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1459, PETRI_PLACES=128, PETRI_TRANSITIONS=181} [2022-11-25 17:02:53,490 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, 2 predicate places. [2022-11-25 17:02:53,490 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 181 transitions, 1459 flow [2022-11-25 17:02:53,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:53,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:02:53,492 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:53,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:02:53,492 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:02:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash -483144993, now seen corresponding path program 3 times [2022-11-25 17:02:53,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:53,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772219997] [2022-11-25 17:02:53,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:53,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:02:55,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:55,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772219997] [2022-11-25 17:02:55,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772219997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:55,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:55,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:02:55,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743670259] [2022-11-25 17:02:55,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:55,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:02:55,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:02:55,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:02:59,488 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 1096 [2022-11-25 17:02:59,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 181 transitions, 1459 flow. Second operand has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:02:59,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:02:59,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 1096 [2022-11-25 17:02:59,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:03:07,625 INFO L130 PetriNetUnfolder]: 25738/43655 cut-off events. [2022-11-25 17:03:07,626 INFO L131 PetriNetUnfolder]: For 168672/173181 co-relation queries the response was YES. [2022-11-25 17:03:07,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146638 conditions, 43655 events. 25738/43655 cut-off events. For 168672/173181 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 371131 event pairs, 3397 based on Foata normal form. 532/36532 useless extension candidates. Maximal degree in co-relation 146609. Up to 21394 conditions per place. [2022-11-25 17:03:07,954 INFO L137 encePairwiseOnDemand]: 1084/1096 looper letters, 188 selfloop transitions, 112 changer transitions 0/345 dead transitions. [2022-11-25 17:03:07,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 345 transitions, 3433 flow [2022-11-25 17:03:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:03:07,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:03:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4623 transitions. [2022-11-25 17:03:07,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4218065693430657 [2022-11-25 17:03:07,965 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4623 transitions. [2022-11-25 17:03:07,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4623 transitions. [2022-11-25 17:03:07,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:03:07,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4623 transitions. [2022-11-25 17:03:07,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 462.3) internal successors, (4623), 10 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:07,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:07,989 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1096.0) internal successors, (12056), 11 states have internal predecessors, (12056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:07,989 INFO L175 Difference]: Start difference. First operand has 128 places, 181 transitions, 1459 flow. Second operand 10 states and 4623 transitions. [2022-11-25 17:03:07,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 345 transitions, 3433 flow [2022-11-25 17:03:08,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 345 transitions, 3417 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 17:03:08,771 INFO L231 Difference]: Finished difference. Result has 136 places, 252 transitions, 2772 flow [2022-11-25 17:03:08,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=1443, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2772, PETRI_PLACES=136, PETRI_TRANSITIONS=252} [2022-11-25 17:03:08,772 INFO L288 CegarLoopForPetriNet]: 126 programPoint places, 10 predicate places. [2022-11-25 17:03:08,773 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 252 transitions, 2772 flow [2022-11-25 17:03:08,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 452.6666666666667) internal successors, (4074), 9 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:08,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:03:08,774 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:08,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:03:08,774 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-25 17:03:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:08,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2114485423, now seen corresponding path program 2 times [2022-11-25 17:03:08,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:08,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94307852] [2022-11-25 17:03:08,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:08,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:03:10,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94307852] [2022-11-25 17:03:10,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94307852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:10,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:10,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:03:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124867939] [2022-11-25 17:03:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:10,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:03:10,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:03:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:03:13,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 1096 [2022-11-25 17:03:13,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 252 transitions, 2772 flow. Second operand has 11 states, 11 states have (on average 454.72727272727275) internal successors, (5002), 11 states have internal predecessors, (5002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:13,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:03:13,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 1096 [2022-11-25 17:03:13,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:03:25,807 INFO L130 PetriNetUnfolder]: 42700/62985 cut-off events. [2022-11-25 17:03:25,807 INFO L131 PetriNetUnfolder]: For 264809/273004 co-relation queries the response was YES. [2022-11-25 17:03:26,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225520 conditions, 62985 events. 42700/62985 cut-off events. For 264809/273004 co-relation queries the response was YES. Maximal size of possible extension queue 1880. Compared 475911 event pairs, 4523 based on Foata normal form. 3696/54307 useless extension candidates. Maximal degree in co-relation 225488. Up to 18134 conditions per place. [2022-11-25 17:03:26,378 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 405 selfloop transitions, 8 changer transitions 0/463 dead transitions. [2022-11-25 17:03:26,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 463 transitions, 5434 flow [2022-11-25 17:03:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:03:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:03:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3277 transitions. [2022-11-25 17:03:26,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4271376433785193 [2022-11-25 17:03:26,387 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3277 transitions. [2022-11-25 17:03:26,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3277 transitions. [2022-11-25 17:03:26,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:03:26,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3277 transitions. [2022-11-25 17:03:26,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 468.14285714285717) internal successors, (3277), 7 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:26,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:26,408 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:26,408 INFO L175 Difference]: Start difference. First operand has 136 places, 252 transitions, 2772 flow. Second operand 7 states and 3277 transitions. [2022-11-25 17:03:26,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 463 transitions, 5434 flow