./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_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_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/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_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/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_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- 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 20:21:43,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:21:43,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:21:43,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:21:43,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:21:43,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:21:43,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:21:43,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:21:43,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:21:43,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:21:43,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:21:43,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:21:43,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:21:43,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:21:43,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:21:43,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:21:43,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:21:43,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:21:43,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:21:43,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:21:43,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:21:43,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:21:43,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:21:43,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:21:43,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:21:43,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:21:43,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:21:43,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:21:43,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:21:43,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:21:43,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:21:43,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:21:43,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:21:43,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:21:43,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:21:43,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:21:43,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:21:43,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:21:43,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:21:43,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:21:43,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:21:43,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:21:43,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:21:43,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:21:43,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:21:43,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:21:43,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:21:43,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:21:43,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:21:43,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:21:43,555 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:21:43,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:21:43,557 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:21:43,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:21:43,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:21:43,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:21:43,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:21:43,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:21:43,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:21:43,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:21:43,559 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:21:43,560 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:21:43,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:21:43,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:21:43,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:21:43,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:21:43,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:21:43,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:21:43,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:43,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:21:43,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:21:43,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:21:43,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:21:43,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:21:43,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:21:43,567 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_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2022-11-02 20:21:43,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:44,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:44,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:44,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:44,022 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:44,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2022-11-02 20:21:44,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/data/3556ca546/591a1fdc711c4ab1b72cf4520f0d1ef9/FLAG359dd8bba [2022-11-02 20:21:44,815 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:44,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2022-11-02 20:21:44,845 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/data/3556ca546/591a1fdc711c4ab1b72cf4520f0d1ef9/FLAG359dd8bba [2022-11-02 20:21:45,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/data/3556ca546/591a1fdc711c4ab1b72cf4520f0d1ef9 [2022-11-02 20:21:45,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:45,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:45,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:45,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:45,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:45,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d74766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45, skipping insertion in model container [2022-11-02 20:21:45,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:45,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:45,557 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_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i[30176,30189] [2022-11-02 20:21:45,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:45,621 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:45,692 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_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i[30176,30189] [2022-11-02 20:21:45,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:45,772 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:45,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45 WrapperNode [2022-11-02 20:21:45,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:45,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:45,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:45,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:45,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,867 INFO L138 Inliner]: procedures = 171, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-02 20:21:45,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:45,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:45,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:45,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:45,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:45,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:45,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:45,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:45,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (1/1) ... [2022-11-02 20:21:45,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:45,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:45,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:46,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:21:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:21:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:21:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:21:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:21:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:21:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:21:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-02 20:21:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:46,053 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 20:21:46,291 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:46,295 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:21:46,680 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:21:46,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:21:46,690 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-02 20:21:46,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:46 BoogieIcfgContainer [2022-11-02 20:21:46,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:21:46,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:21:46,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:21:46,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:21:46,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:45" (1/3) ... [2022-11-02 20:21:46,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ff78b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:46, skipping insertion in model container [2022-11-02 20:21:46,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:45" (2/3) ... [2022-11-02 20:21:46,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ff78b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:46, skipping insertion in model container [2022-11-02 20:21:46,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:46" (3/3) ... [2022-11-02 20:21:46,716 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2022-11-02 20:21:46,730 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:21:46,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:21:46,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-02 20:21:46,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:21:46,959 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:21:47,001 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:47,017 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 124 transitions, 256 flow [2022-11-02 20:21:47,021 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 124 transitions, 256 flow [2022-11-02 20:21:47,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 124 transitions, 256 flow [2022-11-02 20:21:47,121 INFO L130 PetriNetUnfolder]: 21/163 cut-off events. [2022-11-02 20:21:47,121 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:21:47,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 163 events. 21/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 414 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 84. Up to 6 conditions per place. [2022-11-02 20:21:47,133 INFO L118 LiptonReduction]: Number of co-enabled transitions 3528 [2022-11-02 20:21:52,357 INFO L133 LiptonReduction]: Checked pairs total: 5148 [2022-11-02 20:21:52,357 INFO L135 LiptonReduction]: Total number of compositions: 118 [2022-11-02 20:21:52,368 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 41 transitions, 90 flow [2022-11-02 20:21:52,403 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 209 states, 182 states have (on average 2.7857142857142856) internal successors, (507), 208 states have internal predecessors, (507), 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 20:21:52,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:52,435 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;@1e31087c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:52,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-02 20:21:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 182 states have (on average 2.7857142857142856) internal successors, (507), 208 states have internal predecessors, (507), 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 20:21:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 20:21:52,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:52,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 20:21:52,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-02 20:21:52,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash 15150709, now seen corresponding path program 1 times [2022-11-02 20:21:52,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:52,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559460570] [2022-11-02 20:21:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:52,888 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 20:21:52,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:52,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559460570] [2022-11-02 20:21:52,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559460570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:52,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:52,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:52,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444803617] [2022-11-02 20:21:52,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:52,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:52,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:52,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:52,958 INFO L87 Difference]: Start difference. First operand has 209 states, 182 states have (on average 2.7857142857142856) internal successors, (507), 208 states have internal predecessors, (507), 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 20:21:53,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:53,141 INFO L93 Difference]: Finished difference Result 176 states and 332 transitions. [2022-11-02 20:21:53,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:53,145 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 20:21:53,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:53,162 INFO L225 Difference]: With dead ends: 176 [2022-11-02 20:21:53,163 INFO L226 Difference]: Without dead ends: 170 [2022-11-02 20:21:53,165 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 20:21:53,170 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:53,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:21:53,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-02 20:21:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-02 20:21:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 155 states have (on average 2.07741935483871) internal successors, (322), 169 states have internal predecessors, (322), 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 20:21:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 322 transitions. [2022-11-02 20:21:53,262 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 322 transitions. Word has length 4 [2022-11-02 20:21:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:53,263 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 322 transitions. [2022-11-02 20:21:53,263 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 20:21:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 322 transitions. [2022-11-02 20:21:53,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:21:53,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:53,265 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 20:21:53,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:21:53,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-02 20:21:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1674949210, now seen corresponding path program 1 times [2022-11-02 20:21:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:53,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672074342] [2022-11-02 20:21:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:53,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:21:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:53,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:21:53,416 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:21:53,419 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-11-02 20:21:53,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-02 20:21:53,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-02 20:21:53,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-02 20:21:53,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-02 20:21:53,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-02 20:21:53,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-02 20:21:53,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-02 20:21:53,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-02 20:21:53,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-02 20:21:53,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-02 20:21:53,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-02 20:21:53,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-02 20:21:53,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:21:53,437 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:21:53,440 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:21:53,448 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:21:53,480 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:21:53,491 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:53,492 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 162 transitions, 342 flow [2022-11-02 20:21:53,493 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 162 transitions, 342 flow [2022-11-02 20:21:53,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 162 transitions, 342 flow [2022-11-02 20:21:53,637 INFO L130 PetriNetUnfolder]: 37/277 cut-off events. [2022-11-02 20:21:53,638 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:21:53,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 277 events. 37/277 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 859 event pairs, 0 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 165. Up to 9 conditions per place. [2022-11-02 20:21:53,661 INFO L118 LiptonReduction]: Number of co-enabled transitions 11016 [2022-11-02 20:21:59,047 INFO L133 LiptonReduction]: Checked pairs total: 24766 [2022-11-02 20:21:59,047 INFO L135 LiptonReduction]: Total number of compositions: 142 [2022-11-02 20:21:59,049 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 68 transitions, 154 flow [2022-11-02 20:21:59,281 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4254 states, 4087 states have (on average 3.777832150721801) internal successors, (15440), 4253 states have internal predecessors, (15440), 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 20:21:59,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:59,284 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;@1e31087c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:59,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-02 20:21:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 4254 states, 4087 states have (on average 3.777832150721801) internal successors, (15440), 4253 states have internal predecessors, (15440), 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 20:21:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:21:59,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:59,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:21:59,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:21:59,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:59,307 INFO L85 PathProgramCache]: Analyzing trace with hash 795417136, now seen corresponding path program 1 times [2022-11-02 20:21:59,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:59,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270802406] [2022-11-02 20:21:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:59,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:59,385 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 20:21:59,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:59,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270802406] [2022-11-02 20:21:59,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270802406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:59,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:59,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:59,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263705248] [2022-11-02 20:21:59,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:59,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:59,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:59,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:59,408 INFO L87 Difference]: Start difference. First operand has 4254 states, 4087 states have (on average 3.777832150721801) internal successors, (15440), 4253 states have internal predecessors, (15440), 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 20:21:59,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:59,618 INFO L93 Difference]: Finished difference Result 4217 states and 11795 transitions. [2022-11-02 20:21:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:59,619 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 20:21:59,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:59,666 INFO L225 Difference]: With dead ends: 4217 [2022-11-02 20:21:59,667 INFO L226 Difference]: Without dead ends: 4191 [2022-11-02 20:21:59,667 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 20:21:59,669 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:59,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:21:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2022-11-02 20:21:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4191. [2022-11-02 20:21:59,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 4038 states have (on average 2.904655770183259) internal successors, (11729), 4190 states have internal predecessors, (11729), 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 20:22:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 11729 transitions. [2022-11-02 20:22:00,032 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 11729 transitions. Word has length 5 [2022-11-02 20:22:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:00,032 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 11729 transitions. [2022-11-02 20:22:00,033 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 20:22:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 11729 transitions. [2022-11-02 20:22:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:22:00,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:00,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:22:00,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:22:00,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:22:00,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:00,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1111700965, now seen corresponding path program 1 times [2022-11-02 20:22:00,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:00,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940424857] [2022-11-02 20:22:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:00,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:00,201 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 20:22:00,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:00,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940424857] [2022-11-02 20:22:00,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940424857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:00,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:00,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:22:00,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368675154] [2022-11-02 20:22:00,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:00,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:00,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:00,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:00,208 INFO L87 Difference]: Start difference. First operand 4191 states and 11729 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:22:00,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:00,457 INFO L93 Difference]: Finished difference Result 5070 states and 13196 transitions. [2022-11-02 20:22:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:00,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-02 20:22:00,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:00,580 INFO L225 Difference]: With dead ends: 5070 [2022-11-02 20:22:00,581 INFO L226 Difference]: Without dead ends: 5046 [2022-11-02 20:22:00,581 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 20:22:00,587 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 37 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:00,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 15 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:22:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2022-11-02 20:22:00,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 4568. [2022-11-02 20:22:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4435 states have (on average 2.790304396843292) internal successors, (12375), 4567 states have internal predecessors, (12375), 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 20:22:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12375 transitions. [2022-11-02 20:22:00,818 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12375 transitions. Word has length 6 [2022-11-02 20:22:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:00,819 INFO L495 AbstractCegarLoop]: Abstraction has 4568 states and 12375 transitions. [2022-11-02 20:22:00,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:22:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12375 transitions. [2022-11-02 20:22:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:22:00,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:00,821 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:22:00,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:22:00,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:22:00,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:00,823 INFO L85 PathProgramCache]: Analyzing trace with hash -975058457, now seen corresponding path program 1 times [2022-11-02 20:22:00,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:00,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287902927] [2022-11-02 20:22:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:00,905 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 20:22:00,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:00,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287902927] [2022-11-02 20:22:00,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287902927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:00,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:00,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:22:00,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419520407] [2022-11-02 20:22:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:00,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:00,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:00,915 INFO L87 Difference]: Start difference. First operand 4568 states and 12375 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 20:22:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:01,139 INFO L93 Difference]: Finished difference Result 4336 states and 11711 transitions. [2022-11-02 20:22:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:01,141 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 20:22:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:01,182 INFO L225 Difference]: With dead ends: 4336 [2022-11-02 20:22:01,182 INFO L226 Difference]: Without dead ends: 4336 [2022-11-02 20:22:01,183 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 20:22:01,185 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:01,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 7 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:22:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2022-11-02 20:22:01,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 4336. [2022-11-02 20:22:01,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4224 states have (on average 2.7724905303030303) internal successors, (11711), 4335 states have internal predecessors, (11711), 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 20:22:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11711 transitions. [2022-11-02 20:22:01,378 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11711 transitions. Word has length 9 [2022-11-02 20:22:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:01,380 INFO L495 AbstractCegarLoop]: Abstraction has 4336 states and 11711 transitions. [2022-11-02 20:22:01,380 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 20:22:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11711 transitions. [2022-11-02 20:22:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:22:01,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:01,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:22:01,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:22:01,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:22:01,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash -975058476, now seen corresponding path program 1 times [2022-11-02 20:22:01,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:01,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604941777] [2022-11-02 20:22:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:01,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:01,551 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 20:22:01,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:01,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604941777] [2022-11-02 20:22:01,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604941777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:01,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:01,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:22:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539359978] [2022-11-02 20:22:01,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:01,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:01,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:01,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:01,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:01,555 INFO L87 Difference]: Start difference. First operand 4336 states and 11711 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 20:22:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:01,756 INFO L93 Difference]: Finished difference Result 4104 states and 11047 transitions. [2022-11-02 20:22:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:01,757 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 20:22:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:01,800 INFO L225 Difference]: With dead ends: 4104 [2022-11-02 20:22:01,800 INFO L226 Difference]: Without dead ends: 4104 [2022-11-02 20:22:01,800 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 20:22:01,801 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:01,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 12 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:22:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2022-11-02 20:22:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 4104. [2022-11-02 20:22:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4104 states, 4013 states have (on average 2.752803388985796) internal successors, (11047), 4103 states have internal predecessors, (11047), 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 20:22:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 11047 transitions. [2022-11-02 20:22:02,017 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 11047 transitions. Word has length 9 [2022-11-02 20:22:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:02,018 INFO L495 AbstractCegarLoop]: Abstraction has 4104 states and 11047 transitions. [2022-11-02 20:22:02,018 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 20:22:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 11047 transitions. [2022-11-02 20:22:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:22:02,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:02,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:02,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:22:02,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:22:02,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:02,023 INFO L85 PathProgramCache]: Analyzing trace with hash -509982070, now seen corresponding path program 1 times [2022-11-02 20:22:02,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:02,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43329923] [2022-11-02 20:22:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:02,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:02,172 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 20:22:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:02,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43329923] [2022-11-02 20:22:02,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43329923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:02,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:02,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:22:02,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179108070] [2022-11-02 20:22:02,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:02,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:22:02,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:02,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:22:02,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:02,176 INFO L87 Difference]: Start difference. First operand 4104 states and 11047 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:02,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:02,712 INFO L93 Difference]: Finished difference Result 5456 states and 14043 transitions. [2022-11-02 20:22:02,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:22:02,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-02 20:22:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:02,743 INFO L225 Difference]: With dead ends: 5456 [2022-11-02 20:22:02,743 INFO L226 Difference]: Without dead ends: 5456 [2022-11-02 20:22:02,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:22:02,744 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 166 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:02,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 43 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:22:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2022-11-02 20:22:02,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 4483. [2022-11-02 20:22:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4401 states have (on average 2.7714155873665076) internal successors, (12197), 4482 states have internal predecessors, (12197), 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 20:22:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 12197 transitions. [2022-11-02 20:22:03,013 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 12197 transitions. Word has length 11 [2022-11-02 20:22:03,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:03,014 INFO L495 AbstractCegarLoop]: Abstraction has 4483 states and 12197 transitions. [2022-11-02 20:22:03,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 12197 transitions. [2022-11-02 20:22:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:22:03,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:03,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:03,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:22:03,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:22:03,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash -509982069, now seen corresponding path program 1 times [2022-11-02 20:22:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:03,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73478153] [2022-11-02 20:22:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:03,149 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 20:22:03,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:03,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73478153] [2022-11-02 20:22:03,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73478153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:03,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:03,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:22:03,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140027404] [2022-11-02 20:22:03,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:03,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:22:03,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:03,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:22:03,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:03,152 INFO L87 Difference]: Start difference. First operand 4483 states and 12197 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:03,650 INFO L93 Difference]: Finished difference Result 4963 states and 12686 transitions. [2022-11-02 20:22:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:22:03,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-02 20:22:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:03,676 INFO L225 Difference]: With dead ends: 4963 [2022-11-02 20:22:03,676 INFO L226 Difference]: Without dead ends: 4927 [2022-11-02 20:22:03,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:22:03,677 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 156 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:03,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 58 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:22:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2022-11-02 20:22:03,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4080. [2022-11-02 20:22:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4080 states, 4000 states have (on average 2.718) internal successors, (10872), 4079 states have internal predecessors, (10872), 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 20:22:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4080 states to 4080 states and 10872 transitions. [2022-11-02 20:22:03,922 INFO L78 Accepts]: Start accepts. Automaton has 4080 states and 10872 transitions. Word has length 11 [2022-11-02 20:22:03,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:03,922 INFO L495 AbstractCegarLoop]: Abstraction has 4080 states and 10872 transitions. [2022-11-02 20:22:03,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:03,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4080 states and 10872 transitions. [2022-11-02 20:22:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:22:03,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:03,928 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-02 20:22:03,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:22:03,929 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 20:22:03,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:03,929 INFO L85 PathProgramCache]: Analyzing trace with hash -728272758, now seen corresponding path program 1 times [2022-11-02 20:22:03,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:03,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836189658] [2022-11-02 20:22:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:03,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:22:03,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:22:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:22:03,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:22:03,989 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:22:03,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-02 20:22:03,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-11-02 20:22:03,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-11-02 20:22:03,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-11-02 20:22:03,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-11-02 20:22:03,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-11-02 20:22:03,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-11-02 20:22:03,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-11-02 20:22:03,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-11-02 20:22:03,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-11-02 20:22:03,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-11-02 20:22:03,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-11-02 20:22:03,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-11-02 20:22:03,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-11-02 20:22:03,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-11-02 20:22:03,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-11-02 20:22:03,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-11-02 20:22:03,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:22:03,996 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:03,997 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:22:03,997 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 20:22:04,050 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:22:04,055 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:22:04,055 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 200 transitions, 430 flow [2022-11-02 20:22:04,056 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 200 transitions, 430 flow [2022-11-02 20:22:04,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 200 transitions, 430 flow [2022-11-02 20:22:04,175 INFO L130 PetriNetUnfolder]: 58/432 cut-off events. [2022-11-02 20:22:04,175 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-02 20:22:04,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 432 events. 58/432 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1514 event pairs, 1 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 285. Up to 16 conditions per place. [2022-11-02 20:22:04,204 INFO L118 LiptonReduction]: Number of co-enabled transitions 20736 [2022-11-02 20:22:09,868 INFO L133 LiptonReduction]: Checked pairs total: 53912 [2022-11-02 20:22:09,869 INFO L135 LiptonReduction]: Total number of compositions: 171 [2022-11-02 20:22:09,870 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 91 transitions, 212 flow [2022-11-02 20:22:13,521 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70158 states, 69201 states have (on average 4.965072759064175) internal successors, (343588), 70157 states have internal predecessors, (343588), 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 20:22:13,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:13,538 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;@1e31087c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:13,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-02 20:22:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 70158 states, 69201 states have (on average 4.965072759064175) internal successors, (343588), 70157 states have internal predecessors, (343588), 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 20:22:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:22:13,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:13,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:22:13,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:13,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1183014794, now seen corresponding path program 1 times [2022-11-02 20:22:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:13,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041124028] [2022-11-02 20:22:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:13,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:13,741 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 20:22:13,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:13,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041124028] [2022-11-02 20:22:13,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041124028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:13,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:13,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:22:13,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707869182] [2022-11-02 20:22:13,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:13,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:13,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:13,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:13,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:13,883 INFO L87 Difference]: Start difference. First operand has 70158 states, 69201 states have (on average 4.965072759064175) internal successors, (343588), 70157 states have internal predecessors, (343588), 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 20:22:15,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:15,620 INFO L93 Difference]: Finished difference Result 70121 states and 259325 transitions. [2022-11-02 20:22:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:15,622 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 20:22:15,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:16,700 INFO L225 Difference]: With dead ends: 70121 [2022-11-02 20:22:16,700 INFO L226 Difference]: Without dead ends: 69995 [2022-11-02 20:22:16,701 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 20:22:16,702 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:16,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 22 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:22:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69995 states. [2022-11-02 20:22:19,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69995 to 69995. [2022-11-02 20:22:20,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69995 states, 69056 states have (on average 3.7491166589434664) internal successors, (258899), 69994 states have internal predecessors, (258899), 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 20:22:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69995 states to 69995 states and 258899 transitions. [2022-11-02 20:22:21,051 INFO L78 Accepts]: Start accepts. Automaton has 69995 states and 258899 transitions. Word has length 5 [2022-11-02 20:22:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:21,051 INFO L495 AbstractCegarLoop]: Abstraction has 69995 states and 258899 transitions. [2022-11-02 20:22:21,052 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 20:22:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 69995 states and 258899 transitions. [2022-11-02 20:22:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 20:22:21,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:21,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:21,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:22:21,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:21,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:21,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1281579696, now seen corresponding path program 1 times [2022-11-02 20:22:21,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:21,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053436160] [2022-11-02 20:22:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:21,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:21,131 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 20:22:21,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:21,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053436160] [2022-11-02 20:22:21,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053436160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:21,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:21,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:22:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489764625] [2022-11-02 20:22:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:21,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:21,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:21,135 INFO L87 Difference]: Start difference. First operand 69995 states and 258899 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 20:22:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:22,631 INFO L93 Difference]: Finished difference Result 91232 states and 312489 transitions. [2022-11-02 20:22:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:22,632 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 20:22:22,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:23,555 INFO L225 Difference]: With dead ends: 91232 [2022-11-02 20:22:23,555 INFO L226 Difference]: Without dead ends: 91088 [2022-11-02 20:22:23,556 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 20:22:23,557 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 47 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:23,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 23 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:22:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91088 states. [2022-11-02 20:22:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91088 to 85652. [2022-11-02 20:22:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85652 states, 84761 states have (on average 3.5524356720661623) internal successors, (301108), 85651 states have internal predecessors, (301108), 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 20:22:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85652 states to 85652 states and 301108 transitions. [2022-11-02 20:22:27,435 INFO L78 Accepts]: Start accepts. Automaton has 85652 states and 301108 transitions. Word has length 7 [2022-11-02 20:22:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:27,435 INFO L495 AbstractCegarLoop]: Abstraction has 85652 states and 301108 transitions. [2022-11-02 20:22:27,436 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 20:22:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 85652 states and 301108 transitions. [2022-11-02 20:22:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:22:27,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:27,437 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:22:27,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:22:27,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:27,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1833041262, now seen corresponding path program 1 times [2022-11-02 20:22:27,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:27,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700029339] [2022-11-02 20:22:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:27,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:27,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:27,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700029339] [2022-11-02 20:22:27,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700029339] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:22:27,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978297618] [2022-11-02 20:22:27,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:27,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:22:27,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:27,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:22:27,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:22:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:27,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:22:27,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:22:27,668 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 20:22:27,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:22:27,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978297618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:27,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:22:27,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-02 20:22:27,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727639354] [2022-11-02 20:22:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:27,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:22:27,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:27,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:22:27,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:27,671 INFO L87 Difference]: Start difference. First operand 85652 states and 301108 transitions. Second operand has 4 states, 3 states have (on average 3.0) 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 20:22:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:29,218 INFO L93 Difference]: Finished difference Result 81542 states and 285700 transitions. [2022-11-02 20:22:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:22:29,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) 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 20:22:29,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:29,632 INFO L225 Difference]: With dead ends: 81542 [2022-11-02 20:22:29,632 INFO L226 Difference]: Without dead ends: 81542 [2022-11-02 20:22:29,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:29,633 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 78 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:29,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 17 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 20:22:29,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81542 states. [2022-11-02 20:22:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81542 to 81542. [2022-11-02 20:22:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81542 states, 80789 states have (on average 3.536372525962693) internal successors, (285700), 81541 states have internal predecessors, (285700), 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 20:22:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81542 states to 81542 states and 285700 transitions. [2022-11-02 20:22:33,589 INFO L78 Accepts]: Start accepts. Automaton has 81542 states and 285700 transitions. Word has length 9 [2022-11-02 20:22:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:33,589 INFO L495 AbstractCegarLoop]: Abstraction has 81542 states and 285700 transitions. [2022-11-02 20:22:33,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) 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 20:22:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 81542 states and 285700 transitions. [2022-11-02 20:22:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:22:33,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:33,591 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:22:33,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-02 20:22:33,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc47b334-1d29-4a01-a15e-b17b3a33e4ee/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 20:22:33,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:33,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1833041260, now seen corresponding path program 1 times [2022-11-02 20:22:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:33,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784373854] [2022-11-02 20:22:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:33,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:33,871 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 20:22:33,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:33,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784373854] [2022-11-02 20:22:33,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784373854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:33,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:33,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:22:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242549247] [2022-11-02 20:22:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:33,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:33,876 INFO L87 Difference]: Start difference. First operand 81542 states and 285700 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 20:22:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:36,208 INFO L93 Difference]: Finished difference Result 77432 states and 270292 transitions. [2022-11-02 20:22:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:36,211 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 20:22:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:36,775 INFO L225 Difference]: With dead ends: 77432 [2022-11-02 20:22:36,775 INFO L226 Difference]: Without dead ends: 77432 [2022-11-02 20:22:36,775 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 20:22:36,776 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 48 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:36,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 20 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:22:36,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77432 states. [2022-11-02 20:22:39,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77432 to 77432. [2022-11-02 20:22:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77432 states, 76817 states have (on average 3.518648215889712) internal successors, (270292), 77431 states have internal predecessors, (270292), 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 20:22:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77432 states to 77432 states and 270292 transitions. [2022-11-02 20:22:40,844 INFO L78 Accepts]: Start accepts. Automaton has 77432 states and 270292 transitions. Word has length 9 [2022-11-02 20:22:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:40,845 INFO L495 AbstractCegarLoop]: Abstraction has 77432 states and 270292 transitions. [2022-11-02 20:22:40,845 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 20:22:40,845 INFO L276 IsEmpty]: Start isEmpty. Operand 77432 states and 270292 transitions. [2022-11-02 20:22:40,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:22:40,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:40,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:40,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:22:40,846 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:40,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:40,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1590883284, now seen corresponding path program 1 times [2022-11-02 20:22:40,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:40,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164868007] [2022-11-02 20:22:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:40,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:40,948 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 20:22:40,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:40,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164868007] [2022-11-02 20:22:40,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164868007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:40,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:40,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:22:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549273952] [2022-11-02 20:22:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:40,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:22:40,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:40,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:22:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:40,952 INFO L87 Difference]: Start difference. First operand 77432 states and 270292 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:42,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:42,345 INFO L93 Difference]: Finished difference Result 107362 states and 358937 transitions. [2022-11-02 20:22:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:22:42,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-02 20:22:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:44,034 INFO L225 Difference]: With dead ends: 107362 [2022-11-02 20:22:44,034 INFO L226 Difference]: Without dead ends: 107362 [2022-11-02 20:22:44,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:22:44,035 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 174 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:44,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 86 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:22:44,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107362 states. [2022-11-02 20:22:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107362 to 95908. [2022-11-02 20:22:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95908 states, 95314 states have (on average 3.5125584908827663) internal successors, (334796), 95907 states have internal predecessors, (334796), 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 20:22:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95908 states to 95908 states and 334796 transitions. [2022-11-02 20:22:49,647 INFO L78 Accepts]: Start accepts. Automaton has 95908 states and 334796 transitions. Word has length 11 [2022-11-02 20:22:49,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:49,648 INFO L495 AbstractCegarLoop]: Abstraction has 95908 states and 334796 transitions. [2022-11-02 20:22:49,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:49,648 INFO L276 IsEmpty]: Start isEmpty. Operand 95908 states and 334796 transitions. [2022-11-02 20:22:49,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:22:49,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:49,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:49,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:22:49,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:49,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:49,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1590883283, now seen corresponding path program 1 times [2022-11-02 20:22:49,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:49,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082417820] [2022-11-02 20:22:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:49,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:49,735 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 20:22:49,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:49,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082417820] [2022-11-02 20:22:49,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082417820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:49,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:49,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:22:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272404388] [2022-11-02 20:22:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:49,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:22:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:49,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:22:49,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:22:49,738 INFO L87 Difference]: Start difference. First operand 95908 states and 334796 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:51,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:51,135 INFO L93 Difference]: Finished difference Result 108596 states and 355994 transitions. [2022-11-02 20:22:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:22:51,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-02 20:22:51,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:52,875 INFO L225 Difference]: With dead ends: 108596 [2022-11-02 20:22:52,875 INFO L226 Difference]: Without dead ends: 108452 [2022-11-02 20:22:52,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:22:52,876 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 166 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:52,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 112 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:22:53,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108452 states. [2022-11-02 20:22:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108452 to 95574. [2022-11-02 20:22:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95574 states, 94961 states have (on average 3.416107665252051) internal successors, (324397), 95573 states have internal predecessors, (324397), 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 20:22:57,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95574 states to 95574 states and 324397 transitions. [2022-11-02 20:22:57,587 INFO L78 Accepts]: Start accepts. Automaton has 95574 states and 324397 transitions. Word has length 11 [2022-11-02 20:22:57,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:57,588 INFO L495 AbstractCegarLoop]: Abstraction has 95574 states and 324397 transitions. [2022-11-02 20:22:57,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20:22:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand 95574 states and 324397 transitions. [2022-11-02 20:22:57,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:22:57,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:57,591 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-11-02 20:22:57,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:22:57,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:22:57,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -755178711, now seen corresponding path program 1 times [2022-11-02 20:22:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:57,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676924715] [2022-11-02 20:22:57,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:57,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:22:57,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:22:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:22:57,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:22:57,658 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:22:57,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-11-02 20:22:57,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-02 20:22:57,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-02 20:22:57,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-02 20:22:57,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-02 20:22:57,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-02 20:22:57,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-02 20:22:57,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-02 20:22:57,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-02 20:22:57,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-02 20:22:57,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-02 20:22:57,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-02 20:22:57,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-11-02 20:22:57,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-02 20:22:57,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-02 20:22:57,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-02 20:22:57,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-02 20:22:57,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-02 20:22:57,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-02 20:22:57,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-02 20:22:57,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-02 20:22:57,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:22:57,675 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:57,675 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:22:57,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-02 20:22:57,724 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:22:57,727 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:22:57,727 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 238 transitions, 520 flow [2022-11-02 20:22:57,728 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 238 transitions, 520 flow [2022-11-02 20:22:57,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 238 transitions, 520 flow [2022-11-02 20:22:57,990 INFO L130 PetriNetUnfolder]: 91/671 cut-off events. [2022-11-02 20:22:57,990 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-02 20:22:58,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 671 events. 91/671 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2671 event pairs, 6 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 452. Up to 32 conditions per place. [2022-11-02 20:22:58,034 INFO L118 LiptonReduction]: Number of co-enabled transitions 33264 [2022-11-02 20:23:04,044 INFO L133 LiptonReduction]: Checked pairs total: 83255 [2022-11-02 20:23:04,044 INFO L135 LiptonReduction]: Total number of compositions: 203 [2022-11-02 20:23:04,045 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 114 transitions, 272 flow