./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a11d0cba01cb66911cac56797cb36d325dc008752ffb55c25c965bd0644c21c3 --- 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 18:52:43,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:52:43,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:52:43,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:52:43,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:52:43,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:52:43,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:52:43,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:52:43,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:52:43,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:52:43,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:52:43,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:52:43,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:52:43,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:52:43,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:52:43,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:52:43,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:52:43,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:52:43,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:52:43,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:52:43,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:52:43,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:52:43,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:52:43,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:52:43,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:52:43,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:52:43,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:52:43,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:52:43,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:52:43,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:52:43,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:52:43,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:52:43,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:52:43,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:52:43,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:52:43,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:52:43,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:52:43,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:52:43,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:52:43,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:52:43,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:52:43,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-11-25 18:52:43,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:52:43,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:52:43,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:52:43,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:52:43,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:52:43,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:52:43,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:52:43,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:52:43,253 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:52:43,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:52:43,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:52:43,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:52:43,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:52:43,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:52:43,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:52:43,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:52:43,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:52:43,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:52:43,255 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:52:43,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:52:43,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:52:43,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:52:43,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:52:43,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:52:43,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:52:43,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-25 18:52:43,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:52:43,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:52:43,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:52:43,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:52:43,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:52:43,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:52:43,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:52:43,258 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:52:43,258 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:52:43,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:52:43,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:52:43,259 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:52:43,259 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:52:43,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a11d0cba01cb66911cac56797cb36d325dc008752ffb55c25c965bd0644c21c3 [2022-11-25 18:52:43,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:52:43,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:52:43,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:52:43,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:52:43,553 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:52:43,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i [2022-11-25 18:52:46,678 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:52:46,934 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:52:46,937 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i [2022-11-25 18:52:46,953 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/data/1bb327933/5e153d6febca451d88240be582299c78/FLAG35941417c [2022-11-25 18:52:46,967 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/data/1bb327933/5e153d6febca451d88240be582299c78 [2022-11-25 18:52:46,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:52:46,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:52:46,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:52:46,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:52:46,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:52:46,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:52:46" (1/1) ... [2022-11-25 18:52:46,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ec9478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:46, skipping insertion in model container [2022-11-25 18:52:46,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:52:46" (1/1) ... [2022-11-25 18:52:46,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:52:47,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:52:47,424 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_fa54b76b-07b7-4ab6-a867-216d4d64db2c/sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i[30467,30480] [2022-11-25 18:52:47,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:52:47,446 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:52:47,514 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_fa54b76b-07b7-4ab6-a867-216d4d64db2c/sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i[30467,30480] [2022-11-25 18:52:47,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:52:47,567 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:52:47,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47 WrapperNode [2022-11-25 18:52:47,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:52:47,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:52:47,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:52:47,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:52:47,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,619 INFO L138 Inliner]: procedures = 170, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-11-25 18:52:47,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:52:47,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:52:47,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:52:47,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:52:47,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:52:47,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:52:47,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:52:47,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:52:47,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (1/1) ... [2022-11-25 18:52:47,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:52:47,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:52:47,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:52:47,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:52:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:52:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 18:52:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 18:52:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:52:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:52:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:52:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:52:47,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:52:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:52:47,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:52:47,746 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 18:52:47,879 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:52:47,880 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:52:48,298 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:52:48,605 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:52:48,610 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 18:52:48,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:52:48 BoogieIcfgContainer [2022-11-25 18:52:48,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:52:48,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:52:48,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:52:48,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:52:48,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:52:46" (1/3) ... [2022-11-25 18:52:48,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38665882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:52:48, skipping insertion in model container [2022-11-25 18:52:48,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:47" (2/3) ... [2022-11-25 18:52:48,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38665882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:52:48, skipping insertion in model container [2022-11-25 18:52:48,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:52:48" (3/3) ... [2022-11-25 18:52:48,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 10_fmaxsym_cas.i [2022-11-25 18:52:48,636 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:52:48,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:52:48,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 18:52:48,648 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:52:48,776 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:52:48,842 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:52:48,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:52:48,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:52:48,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-25 18:52:48,930 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:52:48,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2022-11-25 18:52:48,950 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@59034431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:48,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 18:52:49,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:52:49,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:49,395 INFO L85 PathProgramCache]: Analyzing trace with hash 752000268, now seen corresponding path program 1 times [2022-11-25 18:52:49,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:52:49,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124187115] [2022-11-25 18:52:49,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:49,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:52:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:52:49,717 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 18:52:49,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:52:49,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124187115] [2022-11-25 18:52:49,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124187115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:52:49,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:52:49,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:52:49,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063349832] [2022-11-25 18:52:49,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:52:49,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:52:49,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:52:49,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:52:49,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:52:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:49,759 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:52:49,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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 18:52:49,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:49,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:52:49,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:52:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 678466424, now seen corresponding path program 1 times [2022-11-25 18:52:49,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:52:49,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042297519] [2022-11-25 18:52:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:49,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:52:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:52:50,541 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 18:52:50,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:52:50,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042297519] [2022-11-25 18:52:50,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042297519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:52:50,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:52:50,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:52:50,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246868665] [2022-11-25 18:52:50,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:52:50,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:52:50,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:52:50,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:52:50,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:52:50,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:50,550 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:52:50,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 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 18:52:50,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:50,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:50,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:52:50,831 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:52:50,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:50,831 INFO L85 PathProgramCache]: Analyzing trace with hash -851748874, now seen corresponding path program 1 times [2022-11-25 18:52:50,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:52:50,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427201318] [2022-11-25 18:52:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:50,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:52:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:52:51,188 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 18:52:51,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:52:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427201318] [2022-11-25 18:52:51,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427201318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:52:51,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:52:51,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:52:51,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607052789] [2022-11-25 18:52:51,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:52:51,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:52:51,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:52:51,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:52:51,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:52:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:51,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:52:51,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 18:52:51,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:51,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:51,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:51,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:52:51,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:52:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:51,656 INFO L85 PathProgramCache]: Analyzing trace with hash -831181499, now seen corresponding path program 1 times [2022-11-25 18:52:51,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:52:51,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828637290] [2022-11-25 18:52:51,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:52:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:52:52,159 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 18:52:52,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:52:52,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828637290] [2022-11-25 18:52:52,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828637290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:52:52,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:52:52,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:52:52,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923099799] [2022-11-25 18:52:52,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:52:52,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:52:52,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:52:52,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:52:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:52:52,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:52,164 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:52:52,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:52:52,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:52:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:52:55,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-25 18:52:55,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-25 18:52:55,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-25 18:52:55,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-11-25 18:52:55,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-25 18:52:55,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-25 18:52:55,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-25 18:52:55,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-25 18:52:55,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:52:55,102 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:52:55,104 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2022-11-25 18:52:55,108 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:55,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:52:55,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:52:55,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:52:55,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-11-25 18:52:55,154 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:52:55,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-25 18:52:55,160 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@59034431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:55,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:52:55,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 18:52:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash -494952019, now seen corresponding path program 1 times [2022-11-25 18:52:55,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:52:55,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791419715] [2022-11-25 18:52:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:55,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:52:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:52:55,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:52:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:52:55,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:52:55,382 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:52:55,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-11-25 18:52:55,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:52:55,387 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:52:55,387 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2022-11-25 18:52:55,388 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:52:55,388 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 18:52:55,461 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:52:55,465 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:55,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:52:55,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:52:55,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:52:55,472 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:52:55,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-25 18:52:55,473 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@59034431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:55,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:52:55,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-11-25 18:52:55,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 18:52:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:52:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1606834394, now seen corresponding path program 1 times [2022-11-25 18:52:55,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:52:55,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958085312] [2022-11-25 18:52:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:52:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:52:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:52:55,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:52:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:52:55,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:52:55,739 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:52:55,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-11-25 18:52:55,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:52:55,742 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:52:55,743 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2022-11-25 18:52:55,743 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:52:55,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 18:52:55,824 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:52:55,828 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:55,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:52:55,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:52:55,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:52:55,840 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:52:55,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2022-11-25 18:52:55,841 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@59034431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:52:55,841 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 18:52:55,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-11-25 18:53:00,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:53:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:53:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -209356317, now seen corresponding path program 1 times [2022-11-25 18:53:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:53:00,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547063679] [2022-11-25 18:53:00,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:53:00,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:53:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:53:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 18:53:00,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:53:00,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547063679] [2022-11-25 18:53:00,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547063679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:53:00,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:53:00,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:53:00,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408854833] [2022-11-25 18:53:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:53:00,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:53:00,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:53:00,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:53:00,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:53:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:53:00,673 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:53:00,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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 18:53:00,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:53:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:53:01,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:53:01,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:53:01,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:53:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash -738018431, now seen corresponding path program 1 times [2022-11-25 18:53:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:53:01,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361175584] [2022-11-25 18:53:01,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:53:01,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:53:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:53:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 18:53:01,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:53:01,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361175584] [2022-11-25 18:53:01,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361175584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:53:01,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:53:01,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:53:01,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858982243] [2022-11-25 18:53:01,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:53:01,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:53:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:53:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:53:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:53:01,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:53:01,872 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:53:01,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 18:53:01,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:53:01,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:54:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:54:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:54:42,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:54:42,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:54:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:54:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1621537331, now seen corresponding path program 1 times [2022-11-25 18:54:42,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:54:42,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433756184] [2022-11-25 18:54:42,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:54:42,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:54:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:54:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 18:54:42,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:54:42,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433756184] [2022-11-25 18:54:42,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433756184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:54:42,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:54:42,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:54:42,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78499093] [2022-11-25 18:54:42,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:54:42,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:54:42,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:54:42,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:54:42,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:54:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:54:42,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:54:42,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 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 18:54:42,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:54:42,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:54:42,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:56:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:56:28,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:56:28,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:56:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:56:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash -401778084, now seen corresponding path program 1 times [2022-11-25 18:56:28,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:56:28,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386092767] [2022-11-25 18:56:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:56:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:56:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:56:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 18:56:28,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:56:28,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386092767] [2022-11-25 18:56:28,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386092767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:56:28,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:56:28,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:56:28,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777041045] [2022-11-25 18:56:28,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:56:28,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:56:28,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:56:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:56:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:56:28,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:28,808 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:56:28,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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 18:56:28,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:56:28,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:56:28,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:56:28,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:24,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:24,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:24,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:57:24,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:57:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:57:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1726145512, now seen corresponding path program 1 times [2022-11-25 18:57:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:57:24,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882857323] [2022-11-25 18:57:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:57:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:57:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:57:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 9615 backedges. 9598 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 18:57:34,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:57:34,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882857323] [2022-11-25 18:57:34,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882857323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:57:34,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:57:34,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-11-25 18:57:34,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521977822] [2022-11-25 18:57:34,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:57:34,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-25 18:57:34,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:57:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-25 18:57:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=1587, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 18:57:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:34,126 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:57:34,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 21.893617021276597) internal successors, (1029), 47 states have internal predecessors, (1029), 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 18:57:34,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:34,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:34,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:34,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:34,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:57:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:57:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:57:40,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:57:40,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 18:57:40,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:57:40,960 INFO L85 PathProgramCache]: Analyzing trace with hash 850748657, now seen corresponding path program 1 times [2022-11-25 18:57:40,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:57:40,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73081936] [2022-11-25 18:57:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:57:40,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:57:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:57:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 26 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 18:57:49,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:57:49,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73081936] [2022-11-25 18:57:49,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73081936] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:57:49,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468846053] [2022-11-25 18:57:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:57:49,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:57:49,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:57:49,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:57:49,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:57:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:57:50,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-25 18:57:51,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:57:52,112 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:57:52,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:57:52,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2022-11-25 18:57:52,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2022-11-25 18:57:53,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2022-11-25 18:57:55,824 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-25 18:57:55,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 18:57:57,648 INFO L321 Elim1Store]: treesize reduction 91, result has 26.0 percent of original size [2022-11-25 18:57:57,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 316 treesize of output 341 [2022-11-25 18:57:57,698 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 18:57:57,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 234 treesize of output 258 [2022-11-25 18:57:57,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2022-11-25 18:57:57,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 115 [2022-11-25 18:57:57,983 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 18:57:57,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 97 [2022-11-25 18:57:57,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:57:57,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:57:57,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:57:57,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 79 [2022-11-25 18:57:58,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 49 [2022-11-25 18:57:58,122 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 18:58:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 18:58:03,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:58:03,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-25 18:58:03,610 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:58:03,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 13 [2022-11-25 18:58:03,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-25 18:58:03,624 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:58:03,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 13 [2022-11-25 18:58:04,983 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-11-25 18:58:04,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 290 treesize of output 319 [2022-11-25 18:58:05,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2022-11-25 18:58:05,094 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:58:05,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 26 [2022-11-25 18:58:05,105 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2366 (Array Int Int)) (v_ArrVal_2363 (Array Int Int)) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int)) (let ((.cse1 (store (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2366) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| v_ArrVal_2363))) (let ((.cse0 (select (select .cse1 |c_~#max~0.base|) |c_~#max~0.offset|))) (or (< .cse0 |c_thr1Thread3of3ForFork0_findMax_~e~0#1|) (< (select (select .cse1 |c_~#storage~0.base|) (+ (* |c_thr1Thread3of3ForFork0_findMax_~i~0#1| 4) 4 |c_~#storage~0.offset|)) (+ .cse0 1)) (= (select v_ArrVal_2363 |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset|) 0))))) is different from false [2022-11-25 18:58:05,264 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2366 (Array Int Int)) (v_ArrVal_2363 (Array Int Int)) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int)) (let ((.cse1 (store (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2366) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| v_ArrVal_2363))) (let ((.cse0 (select (select .cse1 |c_~#max~0.base|) |c_~#max~0.offset|))) (or (< .cse0 |c_thr1Thread3of3ForFork0_findMax_#t~mem8#1|) (< (select (select .cse1 |c_~#storage~0.base|) (+ (* |c_thr1Thread3of3ForFork0_findMax_~i~0#1| 4) 4 |c_~#storage~0.offset|)) (+ .cse0 1)) (= (select v_ArrVal_2363 |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset|) 0))))) is different from false [2022-11-25 18:58:05,348 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2366 (Array Int Int)) (v_ArrVal_2363 (Array Int Int)) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int)) (let ((.cse0 (store (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2366) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| v_ArrVal_2363))) (let ((.cse2 (select (select .cse0 |c_~#max~0.base|) |c_~#max~0.offset|)) (.cse1 (* |c_thr1Thread3of3ForFork0_findMax_~i~0#1| 4))) (or (< (select (select .cse0 |c_~#storage~0.base|) (+ .cse1 4 |c_~#storage~0.offset|)) (+ .cse2 1)) (< .cse2 (select (select |c_#memory_int| |c_~#storage~0.base|) (+ .cse1 |c_~#storage~0.offset|))) (= (select v_ArrVal_2363 |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset|) 0))))) is different from false [2022-11-25 18:58:05,379 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2366 (Array Int Int)) (v_ArrVal_2363 (Array Int Int)) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int)) (let ((.cse2 (store (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2366) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| v_ArrVal_2363))) (let ((.cse1 (* |c_thr1Thread3of3ForFork0_findMax_~offset#1| 4)) (.cse0 (select (select .cse2 |c_~#max~0.base|) |c_~#max~0.offset|))) (or (< .cse0 (select (select |c_#memory_int| |c_~#storage~0.base|) (+ .cse1 |c_~#storage~0.offset|))) (= (select v_ArrVal_2363 |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset|) 0) (< (select (select .cse2 |c_~#storage~0.base|) (+ .cse1 4 |c_~#storage~0.offset|)) (+ .cse0 1)))))) is different from false [2022-11-25 18:58:09,504 INFO L321 Elim1Store]: treesize reduction 114, result has 7.3 percent of original size [2022-11-25 18:58:09,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 901 treesize of output 823 [2022-11-25 18:58:09,560 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:58:09,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 765 treesize of output 649 [2022-11-25 18:58:09,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 643 treesize of output 603 [2022-11-25 18:58:09,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:58:09,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 583 treesize of output 504 [2022-11-25 18:58:10,746 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:58:10,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 44 treesize of output 114 [2022-11-25 18:58:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 19 not checked. [2022-11-25 18:58:10,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468846053] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:58:10,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:58:10,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 33, 33] total 97 [2022-11-25 18:58:10,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658968241] [2022-11-25 18:58:10,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:58:10,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-11-25 18:58:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:58:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-11-25 18:58:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=824, Invalid=7701, Unknown=47, NotChecked=740, Total=9312 [2022-11-25 18:58:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:10,998 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:58:10,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 4.030927835051546) internal successors, (391), 97 states have internal predecessors, (391), 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 18:58:10,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:10,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:58:10,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:58:10,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:58:10,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:58:10,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:58:25,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 19:02:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 19:02:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 19:02:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 19:02:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 19:02:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 19:02:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-25 19:02:08,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 19:02:08,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 19:02:08,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2022-11-25 19:02:08,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 19:02:08,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1583733184, now seen corresponding path program 1 times [2022-11-25 19:02:08,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 19:02:08,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023809971] [2022-11-25 19:02:08,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 19:02:08,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 19:02:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 19:02:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 43 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 19:02:19,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 19:02:19,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023809971] [2022-11-25 19:02:19,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023809971] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 19:02:19,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704711414] [2022-11-25 19:02:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 19:02:19,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 19:02:19,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 19:02:19,786 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 19:02:19,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa54b76b-07b7-4ab6-a867-216d4d64db2c/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 19:02:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 19:02:21,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-25 19:02:21,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 19:02:21,539 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 19:02:21,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 19:02:21,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-11-25 19:02:21,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-11-25 19:02:22,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2022-11-25 19:02:23,809 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-25 19:02:23,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 19:02:25,672 INFO L321 Elim1Store]: treesize reduction 97, result has 14.2 percent of original size [2022-11-25 19:02:25,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 326 treesize of output 332 [2022-11-25 19:02:25,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 265 treesize of output 268 [2022-11-25 19:02:25,753 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 19:02:25,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 295 treesize of output 320 [2022-11-25 19:02:25,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2022-11-25 19:02:25,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 19:02:26,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 19:02:26,236 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-25 19:02:26,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 202 treesize of output 171 [2022-11-25 19:02:26,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 19:02:26,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 153 [2022-11-25 19:02:26,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 123 [2022-11-25 19:02:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 19:02:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 19:02:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 19:02:26,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 56 [2022-11-25 19:02:26,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 19:02:26,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 19:02:31,087 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 19:02:31,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 60 [2022-11-25 19:02:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 43 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 19:02:35,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 19:02:35,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-25 19:02:37,526 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2712 (Array Int Int)) (|aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| Int)) (let ((.cse0 (* 2 |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44|))) (or (< .cse0 0) (<= 6 .cse0) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_2712))) (< (select (select .cse1 |c_~#storage~0.base|) (+ (* |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| 8) |c_~#storage~0.offset|)) (+ (select (select .cse1 |c_~#max~0.base|) |c_~#max~0.offset|) 1)))))) is different from false [2022-11-25 19:02:39,007 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-11-25 19:02:39,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 303 treesize of output 337 [2022-11-25 19:02:39,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2022-11-25 19:02:39,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-25 19:02:39,143 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2712 (Array Int Int)) (v_ArrVal_2700 (Array Int Int)) (|~#max~0.offset| Int) (|aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| Int) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int)) (let ((.cse1 (* 2 |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44|)) (.cse0 (store (store |c_#memory_int| |c_~#max~0.base| (store (select |c_#memory_int| |c_~#max~0.base|) |~#max~0.offset| |c_thr1Thread3of3ForFork0_findMax_~e~0#1|)) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| (store (select (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2700) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base|) |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| 1)))) (or (< (select (select .cse0 |c_~#max~0.base|) |~#max~0.offset|) |c_thr1Thread3of3ForFork0_findMax_~e~0#1|) (< .cse1 0) (<= 6 .cse1) (let ((.cse2 (store .cse0 |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_2712))) (< (select (select .cse2 |c_~#storage~0.base|) (+ (* |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| 8) |c_~#storage~0.offset|)) (+ (select (select .cse2 |c_~#max~0.base|) |~#max~0.offset|) 1)))))) is different from false [2022-11-25 19:02:39,396 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2712 (Array Int Int)) (v_ArrVal_2700 (Array Int Int)) (|~#max~0.offset| Int) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int) (|aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| Int)) (let ((.cse2 (store (store |c_#memory_int| |c_~#max~0.base| (store (select |c_#memory_int| |c_~#max~0.base|) |~#max~0.offset| |c_thr1Thread3of3ForFork0_findMax_#t~mem8#1|)) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| (store (select (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2700) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base|) |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| 1))) (.cse0 (* 2 |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44|))) (or (< .cse0 0) (let ((.cse1 (store .cse2 |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_2712))) (< (select (select .cse1 |c_~#storage~0.base|) (+ (* |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| 8) |c_~#storage~0.offset|)) (+ (select (select .cse1 |c_~#max~0.base|) |~#max~0.offset|) 1))) (< (select (select .cse2 |c_~#max~0.base|) |~#max~0.offset|) |c_thr1Thread3of3ForFork0_findMax_#t~mem8#1|) (<= 6 .cse0)))) is different from false [2022-11-25 19:02:39,522 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2712 (Array Int Int)) (v_ArrVal_2700 (Array Int Int)) (|~#max~0.offset| Int) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int) (|aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| Int)) (let ((.cse1 (select (select |c_#memory_int| |c_~#storage~0.base|) (+ (* |c_thr1Thread3of3ForFork0_findMax_~i~0#1| 4) |c_~#storage~0.offset|)))) (let ((.cse2 (* 2 |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44|)) (.cse0 (store (store |c_#memory_int| |c_~#max~0.base| (store (select |c_#memory_int| |c_~#max~0.base|) |~#max~0.offset| .cse1)) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| (store (select (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2700) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base|) |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| 1)))) (or (< (select (select .cse0 |c_~#max~0.base|) |~#max~0.offset|) .cse1) (< .cse2 0) (<= 6 .cse2) (let ((.cse3 (store .cse0 |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_2712))) (< (select (select .cse3 |c_~#storage~0.base|) (+ (* |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| 8) |c_~#storage~0.offset|)) (+ (select (select .cse3 |c_~#max~0.base|) |~#max~0.offset|) 1))))))) is different from false [2022-11-25 19:02:39,573 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2712 (Array Int Int)) (v_ArrVal_2700 (Array Int Int)) (|~#max~0.offset| Int) (|thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| Int) (|aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| Int)) (let ((.cse3 (select (select |c_#memory_int| |c_~#storage~0.base|) (+ (* |c_thr1Thread3of3ForFork0_findMax_~offset#1| 4) |c_~#storage~0.offset|)))) (let ((.cse1 (store (store |c_#memory_int| |c_~#max~0.base| (store (select |c_#memory_int| |c_~#max~0.base|) |~#max~0.offset| .cse3)) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base| (store (select (store |c_#memory_int| |c_~#max~0.base| v_ArrVal_2700) |c_thr1Thread3of3ForFork0_findMax_~#cret~0#1.base|) |thr1Thread3of3ForFork0_findMax_~#cret~0#1.offset| 1))) (.cse2 (* 2 |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44|))) (or (let ((.cse0 (store .cse1 |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_2712))) (< (select (select .cse0 |c_~#storage~0.base|) (+ (* |aux_div_thr1Thread2of3ForFork0_~offset~0#1_44| 8) |c_~#storage~0.offset|)) (+ (select (select .cse0 |c_~#max~0.base|) |~#max~0.offset|) 1))) (< .cse2 0) (< (select (select .cse1 |c_~#max~0.base|) |~#max~0.offset|) .cse3) (<= 6 .cse2))))) is different from false [2022-11-25 19:02:47,643 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 19:02:47,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1962191 treesize of output 1895305 [2022-11-25 19:02:54,204 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 6026 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 19:02:55,286 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 19:02:55,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1894838 treesize of output 1610178 [2022-11-25 19:03:01,565 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 6029 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 19:03:02,265 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 19:03:02,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1890699 treesize of output 1817735 [2022-11-25 19:04:12,217 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 6092 DAG size of output: 6091 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 19:04:13,055 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 19:04:13,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2013979 treesize of output 1811923 [2022-11-25 19:05:36,860 WARN L233 SmtUtils]: Spent 1.40m on a formula simplification. DAG size of input: 6151 DAG size of output: 6148 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 19:06:03,430 WARN L233 SmtUtils]: Spent 12.94s on a formula simplification that was a NOOP. DAG size: 6048 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 19:06:39,576 WARN L233 SmtUtils]: Spent 23.30s on a formula simplification. DAG size of input: 6044 DAG size of output: 6044 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 19:06:57,691 WARN L233 SmtUtils]: Spent 11.29s on a formula simplification. DAG size of input: 4041 DAG size of output: 4041 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)