./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 --- 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-5e519f3 [2022-11-02 20:23:55,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:23:55,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:23:55,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:23:55,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:23:55,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:23:55,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:23:55,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:23:55,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:23:55,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:23:55,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:23:55,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:23:55,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:23:55,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:23:56,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:23:56,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:23:56,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:23:56,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:23:56,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:23:56,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:23:56,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:23:56,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:23:56,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:23:56,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:23:56,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:23:56,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:23:56,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:23:56,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:23:56,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:23:56,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:23:56,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:23:56,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:23:56,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:23:56,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:23:56,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:23:56,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:23:56,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:23:56,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:23:56,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:23:56,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:23:56,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:23:56,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:23:56,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:23:56,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:23:56,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:23:56,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:23:56,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:23:56,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:23:56,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:23:56,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:23:56,080 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:23:56,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:23:56,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:23:56,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:23:56,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:23:56,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:23:56,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:23:56,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:23:56,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:23:56,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:23:56,082 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:23:56,082 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:23:56,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:23:56,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:23:56,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:23:56,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:23:56,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:23:56,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:23:56,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:56,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:23:56,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:23:56,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:23:56,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:23:56,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:23:56,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:23:56,086 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_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 [2022-11-02 20:23:56,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:23:56,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:23:56,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:23:56,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:23:56,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:23:56,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2022-11-02 20:23:56,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/data/2212d0564/2715a9855e7b43039744b4a993ccfd94/FLAGa042ed89b [2022-11-02 20:23:57,260 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:23:57,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2022-11-02 20:23:57,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/data/2212d0564/2715a9855e7b43039744b4a993ccfd94/FLAGa042ed89b [2022-11-02 20:23:57,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/data/2212d0564/2715a9855e7b43039744b4a993ccfd94 [2022-11-02 20:23:57,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:23:57,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:23:57,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:57,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:23:57,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:23:57,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:57" (1/1) ... [2022-11-02 20:23:57,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d90de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:57, skipping insertion in model container [2022-11-02 20:23:57,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:57" (1/1) ... [2022-11-02 20:23:57,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:23:57,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:23:58,118 WARN L230 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_143b3810-ca6f-4957-932f-e4d468b42960/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i[30176,30189] [2022-11-02 20:23:58,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:58,187 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:23:58,251 WARN L230 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_143b3810-ca6f-4957-932f-e4d468b42960/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i[30176,30189] [2022-11-02 20:23:58,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:58,333 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:23:58,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58 WrapperNode [2022-11-02 20:23:58,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:58,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:58,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:23:58,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:23:58,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,395 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 134 [2022-11-02 20:23:58,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:58,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:23:58,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:23:58,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:23:58,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:23:58,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:23:58,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:23:58,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:23:58,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (1/1) ... [2022-11-02 20:23:58,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:58,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:58,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:23:58,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143b3810-ca6f-4957-932f-e4d468b42960/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:23:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:23:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:23:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:23:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:23:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:23:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:23:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:23:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:23:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-02 20:23:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:23:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:23:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:23:58,533 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:23:58,750 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:23:58,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:23:59,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:23:59,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:23:59,249 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-02 20:23:59,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:59 BoogieIcfgContainer [2022-11-02 20:23:59,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:23:59,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:23:59,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:23:59,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:23:59,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:23:57" (1/3) ... [2022-11-02 20:23:59,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd728da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:59, skipping insertion in model container [2022-11-02 20:23:59,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:58" (2/3) ... [2022-11-02 20:23:59,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd728da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:59, skipping insertion in model container [2022-11-02 20:23:59,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:59" (3/3) ... [2022-11-02 20:23:59,298 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2022-11-02 20:23:59,310 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:23:59,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:23:59,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-02 20:23:59,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:23:59,485 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:23:59,534 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:23:59,556 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 216 transitions, 440 flow [2022-11-02 20:23:59,567 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 216 transitions, 440 flow [2022-11-02 20:23:59,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 216 transitions, 440 flow [2022-11-02 20:23:59,780 INFO L130 PetriNetUnfolder]: 45/306 cut-off events. [2022-11-02 20:23:59,781 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:23:59,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 306 events. 45/306 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1176 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2022-11-02 20:23:59,800 INFO L118 LiptonReduction]: Number of co-enabled transitions 13800 [2022-11-02 20:24:07,933 INFO L133 LiptonReduction]: Checked pairs total: 24767 [2022-11-02 20:24:07,934 INFO L135 LiptonReduction]: Total number of compositions: 210 [2022-11-02 20:24:07,948 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 78 transitions, 164 flow [2022-11-02 20:24:08,042 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 727 states, 680 states have (on average 2.8544117647058824) internal successors, (1941), 726 states have internal predecessors, (1941), 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) [2022-11-02 20:24:08,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:24:08,081 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=FINITE_AUTOMATA, 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;@4ce26d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:24:08,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-02 20:24:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 727 states, 680 states have (on average 2.8544117647058824) internal successors, (1941), 726 states have internal predecessors, (1941), 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) [2022-11-02 20:24:08,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 20:24:08,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:08,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 20:24:08,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:24:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:08,104 INFO L85 PathProgramCache]: Analyzing trace with hash 26422538, now seen corresponding path program 1 times [2022-11-02 20:24:08,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:08,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704278314] [2022-11-02 20:24:08,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:08,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:08,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704278314] [2022-11-02 20:24:08,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704278314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:08,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:08,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:24:08,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444451042] [2022-11-02 20:24:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:08,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:08,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:08,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:08,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:08,547 INFO L87 Difference]: Start difference. First operand has 727 states, 680 states have (on average 2.8544117647058824) internal successors, (1941), 726 states have internal predecessors, (1941), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-02 20:24:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:08,771 INFO L93 Difference]: Finished difference Result 656 states and 1280 transitions. [2022-11-02 20:24:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-02 20:24:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:08,792 INFO L225 Difference]: With dead ends: 656 [2022-11-02 20:24:08,792 INFO L226 Difference]: Without dead ends: 650 [2022-11-02 20:24:08,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:08,797 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:08,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:24:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-02 20:24:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2022-11-02 20:24:08,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 623 states have (on average 2.038523274478331) internal successors, (1270), 649 states have internal predecessors, (1270), 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) [2022-11-02 20:24:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1270 transitions. [2022-11-02 20:24:08,883 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1270 transitions. Word has length 4 [2022-11-02 20:24:08,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:08,884 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 1270 transitions. [2022-11-02 20:24:08,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-02 20:24:08,884 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1270 transitions. [2022-11-02 20:24:08,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:24:08,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:08,885 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 20:24:08,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:24:08,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:24:08,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:08,886 INFO L85 PathProgramCache]: Analyzing trace with hash -377707373, now seen corresponding path program 1 times [2022-11-02 20:24:08,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:08,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033453431] [2022-11-02 20:24:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:08,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:24:08,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:24:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:24:08,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:24:08,960 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:24:08,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-11-02 20:24:08,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-02 20:24:08,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-02 20:24:08,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-02 20:24:08,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-02 20:24:08,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-02 20:24:08,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-02 20:24:08,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-02 20:24:08,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-02 20:24:08,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-02 20:24:08,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-02 20:24:08,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-02 20:24:08,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-11-02 20:24:08,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-02 20:24:08,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-02 20:24:08,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-02 20:24:08,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-02 20:24:08,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-02 20:24:08,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-02 20:24:08,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-02 20:24:08,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-02 20:24:08,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:24:08,974 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:24:08,976 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:24:08,977 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:24:09,011 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:24:09,016 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:24:09,016 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 287 transitions, 592 flow [2022-11-02 20:24:09,017 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 287 transitions, 592 flow [2022-11-02 20:24:09,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 287 transitions, 592 flow [2022-11-02 20:24:09,174 INFO L130 PetriNetUnfolder]: 76/504 cut-off events. [2022-11-02 20:24:09,174 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:24:09,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 504 events. 76/504 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2237 event pairs, 0 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 308. Up to 9 conditions per place. [2022-11-02 20:24:09,215 INFO L118 LiptonReduction]: Number of co-enabled transitions 39744 [2022-11-02 20:24:17,206 INFO L133 LiptonReduction]: Checked pairs total: 103541 [2022-11-02 20:24:17,207 INFO L135 LiptonReduction]: Total number of compositions: 256 [2022-11-02 20:24:17,208 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 129 transitions, 276 flow [2022-11-02 20:24:18,353 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 27120 states, 26641 states have (on average 4.05330130250366) internal successors, (107984), 27119 states have internal predecessors, (107984), 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) [2022-11-02 20:24:18,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:24:18,357 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=FINITE_AUTOMATA, 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;@4ce26d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:24:18,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-02 20:24:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 27120 states, 26641 states have (on average 4.05330130250366) internal successors, (107984), 27119 states have internal predecessors, (107984), 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) [2022-11-02 20:24:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:24:18,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:18,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:24:18,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-02 20:24:18,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1405546487, now seen corresponding path program 1 times [2022-11-02 20:24:18,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:18,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563484359] [2022-11-02 20:24:18,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:18,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:18,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:18,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563484359] [2022-11-02 20:24:18,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563484359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:18,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:18,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:24:18,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989352478] [2022-11-02 20:24:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:18,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:18,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:18,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:18,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:18,735 INFO L87 Difference]: Start difference. First operand has 27120 states, 26641 states have (on average 4.05330130250366) internal successors, (107984), 27119 states have internal predecessors, (107984), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-02 20:24:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:19,632 INFO L93 Difference]: Finished difference Result 27041 states and 78374 transitions. [2022-11-02 20:24:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:19,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-11-02 20:24:19,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:19,979 INFO L225 Difference]: With dead ends: 27041 [2022-11-02 20:24:19,979 INFO L226 Difference]: Without dead ends: 27015 [2022-11-02 20:24:19,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:19,989 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:19,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 26 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:24:20,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27015 states. [2022-11-02 20:24:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27015 to 27015. [2022-11-02 20:24:21,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27015 states, 26558 states have (on average 2.9485654040213873) internal successors, (78308), 27014 states have internal predecessors, (78308), 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) [2022-11-02 20:24:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27015 states to 27015 states and 78308 transitions. [2022-11-02 20:24:21,808 INFO L78 Accepts]: Start accepts. Automaton has 27015 states and 78308 transitions. Word has length 5 [2022-11-02 20:24:21,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:21,808 INFO L495 AbstractCegarLoop]: Abstraction has 27015 states and 78308 transitions. [2022-11-02 20:24:21,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-02 20:24:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 27015 states and 78308 transitions. [2022-11-02 20:24:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 20:24:21,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:21,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:21,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:24:21,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-02 20:24:21,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2123132063, now seen corresponding path program 1 times [2022-11-02 20:24:21,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:21,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188256321] [2022-11-02 20:24:21,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:21,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:22,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:22,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:22,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188256321] [2022-11-02 20:24:22,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188256321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:22,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:22,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:24:22,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064166858] [2022-11-02 20:24:22,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:22,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:22,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:22,051 INFO L87 Difference]: Start difference. First operand 27015 states and 78308 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-02 20:24:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:23,043 INFO L93 Difference]: Finished difference Result 43515 states and 121886 transitions. [2022-11-02 20:24:23,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2022-11-02 20:24:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:23,470 INFO L225 Difference]: With dead ends: 43515 [2022-11-02 20:24:23,471 INFO L226 Difference]: Without dead ends: 43515 [2022-11-02 20:24:23,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:23,481 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 78 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:23,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 25 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:24:23,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43515 states. [2022-11-02 20:24:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43515 to 32678. [2022-11-02 20:24:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32678 states, 32241 states have (on average 2.9224589808008434) internal successors, (94223), 32677 states have internal predecessors, (94223), 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) [2022-11-02 20:24:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32678 states to 32678 states and 94223 transitions. [2022-11-02 20:24:25,285 INFO L78 Accepts]: Start accepts. Automaton has 32678 states and 94223 transitions. Word has length 7 [2022-11-02 20:24:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:25,285 INFO L495 AbstractCegarLoop]: Abstraction has 32678 states and 94223 transitions. [2022-11-02 20:24:25,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-02 20:24:25,286 INFO L276 IsEmpty]: Start isEmpty. Operand 32678 states and 94223 transitions. [2022-11-02 20:24:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:24:25,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:25,288 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:24:25,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:24:25,289 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-02 20:24:25,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:25,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1014602669, now seen corresponding path program 1 times [2022-11-02 20:24:25,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:25,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241601610] [2022-11-02 20:24:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:25,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:25,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:25,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241601610] [2022-11-02 20:24:25,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241601610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:25,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:25,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:24:25,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332609744] [2022-11-02 20:24:25,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:25,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:25,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:25,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:25,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:25,411 INFO L87 Difference]: Start difference. First operand 32678 states and 94223 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-02 20:24:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:26,008 INFO L93 Difference]: Finished difference Result 31741 states and 91474 transitions. [2022-11-02 20:24:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:26,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-02 20:24:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:26,232 INFO L225 Difference]: With dead ends: 31741 [2022-11-02 20:24:26,232 INFO L226 Difference]: Without dead ends: 31741 [2022-11-02 20:24:26,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:26,234 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:26,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 13 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31741 states. [2022-11-02 20:24:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31741 to 31741. [2022-11-02 20:24:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31741 states, 31381 states have (on average 2.9149485357381857) internal successors, (91474), 31740 states have internal predecessors, (91474), 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) [2022-11-02 20:24:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31741 states to 31741 states and 91474 transitions. [2022-11-02 20:24:27,571 INFO L78 Accepts]: Start accepts. Automaton has 31741 states and 91474 transitions. Word has length 9 [2022-11-02 20:24:27,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:27,573 INFO L495 AbstractCegarLoop]: Abstraction has 31741 states and 91474 transitions. [2022-11-02 20:24:27,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-02 20:24:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 31741 states and 91474 transitions. [2022-11-02 20:24:27,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:24:27,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:27,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:24:27,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:24:27,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-02 20:24:27,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:27,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1014602670, now seen corresponding path program 1 times [2022-11-02 20:24:27,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:27,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656234981] [2022-11-02 20:24:27,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:27,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:24:27,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:27,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656234981] [2022-11-02 20:24:27,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656234981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:27,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:27,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:24:27,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626783542] [2022-11-02 20:24:27,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:27,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:24:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:24:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:27,652 INFO L87 Difference]: Start difference. First operand 31741 states and 91474 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-02 20:24:28,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:28,255 INFO L93 Difference]: Finished difference Result 30804 states and 88725 transitions. [2022-11-02 20:24:28,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:24:28,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-02 20:24:28,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:28,401 INFO L225 Difference]: With dead ends: 30804 [2022-11-02 20:24:28,402 INFO L226 Difference]: Without dead ends: 30804 [2022-11-02 20:24:28,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:24:28,403 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 62 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:28,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 24 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:24:28,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30804 states. [2022-11-02 20:24:29,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30804 to 30804. [2022-11-02 20:24:29,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30804 states, 30521 states have (on average 2.9070148422397692) internal successors, (88725), 30803 states have internal predecessors, (88725), 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) [2022-11-02 20:24:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30804 states to 30804 states and 88725 transitions. [2022-11-02 20:24:29,704 INFO L78 Accepts]: Start accepts. Automaton has 30804 states and 88725 transitions. Word has length 9 [2022-11-02 20:24:29,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:29,704 INFO L495 AbstractCegarLoop]: Abstraction has 30804 states and 88725 transitions. [2022-11-02 20:24:29,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-02 20:24:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 30804 states and 88725 transitions. [2022-11-02 20:24:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:24:29,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:29,706 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-02 20:24:29,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:24:29,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-02 20:24:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash 75696263, now seen corresponding path program 1 times [2022-11-02 20:24:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:29,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417540502] [2022-11-02 20:24:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:29,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:24:29,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:24:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:24:29,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:24:29,754 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:24:29,754 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2022-11-02 20:24:29,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2022-11-02 20:24:29,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2022-11-02 20:24:29,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2022-11-02 20:24:29,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2022-11-02 20:24:29,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2022-11-02 20:24:29,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2022-11-02 20:24:29,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2022-11-02 20:24:29,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2022-11-02 20:24:29,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2022-11-02 20:24:29,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2022-11-02 20:24:29,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2022-11-02 20:24:29,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2022-11-02 20:24:29,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2022-11-02 20:24:29,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2022-11-02 20:24:29,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2022-11-02 20:24:29,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2022-11-02 20:24:29,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2022-11-02 20:24:29,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2022-11-02 20:24:29,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2022-11-02 20:24:29,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2022-11-02 20:24:29,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2022-11-02 20:24:29,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2022-11-02 20:24:29,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2022-11-02 20:24:29,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2022-11-02 20:24:29,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2022-11-02 20:24:29,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2022-11-02 20:24:29,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2022-11-02 20:24:29,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2022-11-02 20:24:29,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:24:29,763 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-02 20:24:29,763 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:24:29,764 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 20:24:29,808 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:24:29,813 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:24:29,814 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 310 places, 358 transitions, 746 flow [2022-11-02 20:24:29,814 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 310 places, 358 transitions, 746 flow [2022-11-02 20:24:29,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 310 places, 358 transitions, 746 flow [2022-11-02 20:24:30,036 INFO L130 PetriNetUnfolder]: 112/743 cut-off events. [2022-11-02 20:24:30,038 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-02 20:24:30,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 743 events. 112/743 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3492 event pairs, 1 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 512. Up to 16 conditions per place. [2022-11-02 20:24:30,105 INFO L118 LiptonReduction]: Number of co-enabled transitions 74520 [2022-11-02 20:24:39,888 INFO L133 LiptonReduction]: Checked pairs total: 234990 [2022-11-02 20:24:39,888 INFO L135 LiptonReduction]: Total number of compositions: 315 [2022-11-02 20:24:39,890 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 173 transitions, 376 flow [2022-11-02 20:25:15,994 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 848031 states, 843394 states have (on average 5.35089649677375) internal successors, (4512914), 848030 states have internal predecessors, (4512914), 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) [2022-11-02 20:25:16,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:25:16,010 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=FINITE_AUTOMATA, 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;@4ce26d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:25:16,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations.