./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/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_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/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_94291a07-7c44-4344-a6b8-95509a36f7d6/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 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 --- 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 21:05:09,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:05:09,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:05:09,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:05:09,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:05:09,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:05:09,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:05:09,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:05:09,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:05:09,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:05:09,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:05:09,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:05:09,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:05:09,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:05:09,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:05:09,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:05:09,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:05:09,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:05:09,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:05:09,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:05:09,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:05:09,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:05:09,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:05:09,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:05:09,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:05:09,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:05:09,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:05:09,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:05:09,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:05:09,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:05:09,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:05:09,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:05:09,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:05:09,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:05:09,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:05:09,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:05:09,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:05:09,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:05:09,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:05:09,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:05:09,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:05:09,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 21:05:09,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:05:09,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:05:09,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:05:09,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:05:09,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:05:09,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:05:09,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:05:09,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:05:09,588 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:05:09,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:05:09,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:05:09,589 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:05:09,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:05:09,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:05:09,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:05:09,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:05:09,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:05:09,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:05:09,591 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 21:05:09,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:05:09,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:05:09,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:05:09,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:05:09,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:05:09,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:05:09,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:05:09,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:05:09,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:05:09,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:05:09,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:05:09,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:05:09,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:05:09,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:05:09,594 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_94291a07-7c44-4344-a6b8-95509a36f7d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 [2022-11-02 21:05:09,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:05:09,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:05:09,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:05:09,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:05:09,938 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:05:09,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i [2022-11-02 21:05:10,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/data/b14f6beee/74c1ba85e5374f0d98f828f1d50a095d/FLAG7d499c577 [2022-11-02 21:05:10,612 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:05:10,613 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i [2022-11-02 21:05:10,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/data/b14f6beee/74c1ba85e5374f0d98f828f1d50a095d/FLAG7d499c577 [2022-11-02 21:05:10,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/data/b14f6beee/74c1ba85e5374f0d98f828f1d50a095d [2022-11-02 21:05:10,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:05:10,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:05:10,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:05:10,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:05:10,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:05:10,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:05:10" (1/1) ... [2022-11-02 21:05:10,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d1f3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:10, skipping insertion in model container [2022-11-02 21:05:10,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:05:10" (1/1) ... [2022-11-02 21:05:10,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:05:10,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:05:11,289 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_94291a07-7c44-4344-a6b8-95509a36f7d6/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i[30176,30189] [2022-11-02 21:05:11,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:05:11,319 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:05:11,379 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_94291a07-7c44-4344-a6b8-95509a36f7d6/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i[30176,30189] [2022-11-02 21:05:11,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:05:11,440 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:05:11,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11 WrapperNode [2022-11-02 21:05:11,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:05:11,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:05:11,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:05:11,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:05:11,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,516 INFO L138 Inliner]: procedures = 170, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-11-02 21:05:11,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:05:11,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:05:11,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:05:11,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:05:11,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,561 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:05:11,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:05:11,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:05:11,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:05:11,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (1/1) ... [2022-11-02 21:05:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:05:11,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:11,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:05:11,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:05:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:05:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:05:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:05:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:05:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:05:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:05:11,659 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 21:05:11,802 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:05:11,805 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:05:12,143 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:05:12,150 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:05:12,152 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-02 21:05:12,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:05:12 BoogieIcfgContainer [2022-11-02 21:05:12,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:05:12,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:05:12,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:05:12,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:05:12,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:05:10" (1/3) ... [2022-11-02 21:05:12,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636eacc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:05:12, skipping insertion in model container [2022-11-02 21:05:12,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:11" (2/3) ... [2022-11-02 21:05:12,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636eacc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:05:12, skipping insertion in model container [2022-11-02 21:05:12,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:05:12" (3/3) ... [2022-11-02 21:05:12,166 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_12-ptr_racefree.i [2022-11-02 21:05:12,177 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:05:12,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:05:12,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-02 21:05:12,188 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:05:12,281 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 21:05:12,312 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 21:05:12,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 138 transitions, 284 flow [2022-11-02 21:05:12,328 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 138 transitions, 284 flow [2022-11-02 21:05:12,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 138 transitions, 284 flow [2022-11-02 21:05:12,394 INFO L130 PetriNetUnfolder]: 17/175 cut-off events. [2022-11-02 21:05:12,394 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:05:12,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 175 events. 17/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 415 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 87. Up to 4 conditions per place. [2022-11-02 21:05:12,403 INFO L118 LiptonReduction]: Number of co-enabled transitions 3854 [2022-11-02 21:05:17,105 INFO L133 LiptonReduction]: Checked pairs total: 5990 [2022-11-02 21:05:17,105 INFO L135 LiptonReduction]: Total number of compositions: 130 [2022-11-02 21:05:17,114 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 42 transitions, 92 flow [2022-11-02 21:05:17,144 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 220 states, 193 states have (on average 2.7409326424870466) internal successors, (529), 219 states have internal predecessors, (529), 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 21:05:17,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:05:17,171 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;@587893af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:05:17,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-02 21:05:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 193 states have (on average 2.7409326424870466) internal successors, (529), 219 states have internal predecessors, (529), 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 21:05:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 21:05:17,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:17,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 21:05:17,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-02 21:05:17,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash 16304749, now seen corresponding path program 1 times [2022-11-02 21:05:17,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:17,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892431488] [2022-11-02 21:05:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:17,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:17,481 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 21:05:17,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:17,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892431488] [2022-11-02 21:05:17,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892431488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:17,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:17,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 21:05:17,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939825478] [2022-11-02 21:05:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:17,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:17,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:17,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:17,515 INFO L87 Difference]: Start difference. First operand has 220 states, 193 states have (on average 2.7409326424870466) internal successors, (529), 219 states have internal predecessors, (529), 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 21:05:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:17,628 INFO L93 Difference]: Finished difference Result 184 states and 333 transitions. [2022-11-02 21:05:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:17,630 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 21:05:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:17,641 INFO L225 Difference]: With dead ends: 184 [2022-11-02 21:05:17,641 INFO L226 Difference]: Without dead ends: 178 [2022-11-02 21:05:17,642 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 21:05:17,645 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 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 21:05:17,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 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 21:05:17,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-02 21:05:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-02 21:05:17,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 163 states have (on average 1.98159509202454) internal successors, (323), 177 states have internal predecessors, (323), 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 21:05:17,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 323 transitions. [2022-11-02 21:05:17,693 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 323 transitions. Word has length 4 [2022-11-02 21:05:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:17,693 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 323 transitions. [2022-11-02 21:05:17,693 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 21:05:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 323 transitions. [2022-11-02 21:05:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 21:05:17,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:17,694 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 21:05:17,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:05:17,695 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 21:05:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:17,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1510989743, now seen corresponding path program 1 times [2022-11-02 21:05:17,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:17,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524000983] [2022-11-02 21:05:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:05:17,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:05:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:05:17,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:05:17,760 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:05:17,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-11-02 21:05:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-02 21:05:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-02 21:05:17,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-02 21:05:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-02 21:05:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-02 21:05:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-02 21:05:17,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-02 21:05:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-02 21:05:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-02 21:05:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-02 21:05:17,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-02 21:05:17,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-02 21:05:17,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:05:17,769 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 21:05:17,771 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 21:05:17,771 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 21:05:17,795 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:05:17,799 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 21:05:17,799 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 181 transitions, 380 flow [2022-11-02 21:05:17,799 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 181 transitions, 380 flow [2022-11-02 21:05:17,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 181 transitions, 380 flow [2022-11-02 21:05:17,926 INFO L130 PetriNetUnfolder]: 31/292 cut-off events. [2022-11-02 21:05:17,926 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 21:05:17,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 292 events. 31/292 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 904 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2022-11-02 21:05:17,944 INFO L118 LiptonReduction]: Number of co-enabled transitions 12628 [2022-11-02 21:05:23,269 INFO L133 LiptonReduction]: Checked pairs total: 27226 [2022-11-02 21:05:23,269 INFO L135 LiptonReduction]: Total number of compositions: 168 [2022-11-02 21:05:23,270 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 66 transitions, 150 flow [2022-11-02 21:05:23,431 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3981 states, 3814 states have (on average 3.7233875196643944) internal successors, (14201), 3980 states have internal predecessors, (14201), 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 21:05:23,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:05:23,443 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;@587893af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:05:23,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-02 21:05:23,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 3981 states, 3814 states have (on average 3.7233875196643944) internal successors, (14201), 3980 states have internal predecessors, (14201), 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 21:05:23,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 21:05:23,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:23,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 21:05:23,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:23,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash 879070290, now seen corresponding path program 1 times [2022-11-02 21:05:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:23,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276246582] [2022-11-02 21:05:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:23,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:23,526 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 21:05:23,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:23,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276246582] [2022-11-02 21:05:23,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276246582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:23,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:23,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 21:05:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772403027] [2022-11-02 21:05:23,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:23,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:23,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:23,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:23,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:23,545 INFO L87 Difference]: Start difference. First operand has 3981 states, 3814 states have (on average 3.7233875196643944) internal successors, (14201), 3980 states have internal predecessors, (14201), 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 21:05:23,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:23,729 INFO L93 Difference]: Finished difference Result 3945 states and 10756 transitions. [2022-11-02 21:05:23,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:23,730 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 21:05:23,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:23,755 INFO L225 Difference]: With dead ends: 3945 [2022-11-02 21:05:23,756 INFO L226 Difference]: Without dead ends: 3919 [2022-11-02 21:05:23,756 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 21:05:23,757 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:23,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2022-11-02 21:05:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3919. [2022-11-02 21:05:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3766 states have (on average 2.8385554965480617) internal successors, (10690), 3918 states have internal predecessors, (10690), 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 21:05:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 10690 transitions. [2022-11-02 21:05:23,924 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 10690 transitions. Word has length 5 [2022-11-02 21:05:23,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:23,924 INFO L495 AbstractCegarLoop]: Abstraction has 3919 states and 10690 transitions. [2022-11-02 21:05:23,924 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 21:05:23,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 10690 transitions. [2022-11-02 21:05:23,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 21:05:23,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:23,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:23,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:05:23,927 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 21:05:23,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:23,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1315114137, now seen corresponding path program 1 times [2022-11-02 21:05:23,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:23,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61589747] [2022-11-02 21:05:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:23,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:24,131 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 21:05:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:24,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61589747] [2022-11-02 21:05:24,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61589747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:24,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:24,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606985820] [2022-11-02 21:05:24,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:24,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:24,135 INFO L87 Difference]: Start difference. First operand 3919 states and 10690 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 21:05:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:24,522 INFO L93 Difference]: Finished difference Result 5776 states and 15523 transitions. [2022-11-02 21:05:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 21:05:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:24,560 INFO L225 Difference]: With dead ends: 5776 [2022-11-02 21:05:24,561 INFO L226 Difference]: Without dead ends: 5776 [2022-11-02 21:05:24,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:05:24,562 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 136 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:24,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 42 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:24,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2022-11-02 21:05:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 4410. [2022-11-02 21:05:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4410 states, 4257 states have (on average 2.834625322997416) internal successors, (12067), 4409 states have internal predecessors, (12067), 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 21:05:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 12067 transitions. [2022-11-02 21:05:24,798 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 12067 transitions. Word has length 7 [2022-11-02 21:05:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:24,798 INFO L495 AbstractCegarLoop]: Abstraction has 4410 states and 12067 transitions. [2022-11-02 21:05:24,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 21:05:24,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 12067 transitions. [2022-11-02 21:05:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:05:24,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:24,803 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 21:05:24,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:05:24,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:24,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:24,804 INFO L85 PathProgramCache]: Analyzing trace with hash 902395099, now seen corresponding path program 1 times [2022-11-02 21:05:24,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:24,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396096530] [2022-11-02 21:05:24,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:24,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:24,895 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 21:05:24,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:24,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396096530] [2022-11-02 21:05:24,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396096530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:24,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:24,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:24,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135962675] [2022-11-02 21:05:24,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:24,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:24,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:24,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:24,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:24,898 INFO L87 Difference]: Start difference. First operand 4410 states and 12067 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 21:05:25,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:25,035 INFO L93 Difference]: Finished difference Result 4133 states and 11268 transitions. [2022-11-02 21:05:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:25,035 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 21:05:25,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:25,059 INFO L225 Difference]: With dead ends: 4133 [2022-11-02 21:05:25,059 INFO L226 Difference]: Without dead ends: 4133 [2022-11-02 21:05:25,060 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 21:05:25,061 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:25,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 14 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:25,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2022-11-02 21:05:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 4133. [2022-11-02 21:05:25,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 4005 states have (on average 2.8134831460674157) internal successors, (11268), 4132 states have internal predecessors, (11268), 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 21:05:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 11268 transitions. [2022-11-02 21:05:25,245 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 11268 transitions. Word has length 9 [2022-11-02 21:05:25,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:25,246 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 11268 transitions. [2022-11-02 21:05:25,246 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 21:05:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 11268 transitions. [2022-11-02 21:05:25,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:05:25,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:25,249 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 21:05:25,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:05:25,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:25,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:25,252 INFO L85 PathProgramCache]: Analyzing trace with hash 902395116, now seen corresponding path program 1 times [2022-11-02 21:05:25,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:25,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352207033] [2022-11-02 21:05:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:25,347 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 21:05:25,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:25,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352207033] [2022-11-02 21:05:25,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352207033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:25,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:25,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:25,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072764365] [2022-11-02 21:05:25,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:25,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:25,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:25,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:25,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:25,350 INFO L87 Difference]: Start difference. First operand 4133 states and 11268 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 21:05:25,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:25,435 INFO L93 Difference]: Finished difference Result 3856 states and 10469 transitions. [2022-11-02 21:05:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:25,436 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 21:05:25,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:25,458 INFO L225 Difference]: With dead ends: 3856 [2022-11-02 21:05:25,458 INFO L226 Difference]: Without dead ends: 3856 [2022-11-02 21:05:25,458 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 21:05:25,459 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:25,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:05:25,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2022-11-02 21:05:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3856. [2022-11-02 21:05:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3753 states have (on average 2.7895017319477753) internal successors, (10469), 3855 states have internal predecessors, (10469), 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 21:05:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 10469 transitions. [2022-11-02 21:05:25,622 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 10469 transitions. Word has length 9 [2022-11-02 21:05:25,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:25,622 INFO L495 AbstractCegarLoop]: Abstraction has 3856 states and 10469 transitions. [2022-11-02 21:05:25,623 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 21:05:25,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 10469 transitions. [2022-11-02 21:05:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 21:05:25,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:25,624 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:25,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:05:25,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash 119644617, now seen corresponding path program 1 times [2022-11-02 21:05:25,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:25,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195351468] [2022-11-02 21:05:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:25,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:25,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195351468] [2022-11-02 21:05:25,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195351468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:25,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087073305] [2022-11-02 21:05:25,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:25,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:25,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:25,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:25,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:05:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:25,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 21:05:25,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:25,939 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 21:05:25,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 21:05:26,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:05:26,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:05:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:26,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:26,233 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_56 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_56) c_t_funThread1of2ForFork0_~p~0.base) c_t_funThread1of2ForFork0_~p~0.offset) 2147483650))) is different from false [2022-11-02 21:05:26,282 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_56 (Array Int Int))) (< 0 (+ 2147483650 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_56) |c_~#global~0.base|) |c_~#global~0.offset|)))) is different from false [2022-11-02 21:05:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-02 21:05:26,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087073305] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:26,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:05:26,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2022-11-02 21:05:26,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144321875] [2022-11-02 21:05:26,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:26,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:05:26,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:26,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:05:26,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=53, Unknown=2, NotChecked=30, Total=110 [2022-11-02 21:05:26,300 INFO L87 Difference]: Start difference. First operand 3856 states and 10469 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 21:05:26,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:26,956 INFO L93 Difference]: Finished difference Result 5401 states and 14828 transitions. [2022-11-02 21:05:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:26,957 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 10 [2022-11-02 21:05:26,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:26,999 INFO L225 Difference]: With dead ends: 5401 [2022-11-02 21:05:27,000 INFO L226 Difference]: Without dead ends: 5401 [2022-11-02 21:05:27,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=93, Unknown=2, NotChecked=42, Total=182 [2022-11-02 21:05:27,001 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 134 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 240 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:27,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 109 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 484 Invalid, 0 Unknown, 240 Unchecked, 0.5s Time] [2022-11-02 21:05:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2022-11-02 21:05:27,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 3791. [2022-11-02 21:05:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3791 states, 3700 states have (on average 2.7935135135135134) internal successors, (10336), 3790 states have internal predecessors, (10336), 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 21:05:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3791 states to 3791 states and 10336 transitions. [2022-11-02 21:05:27,178 INFO L78 Accepts]: Start accepts. Automaton has 3791 states and 10336 transitions. Word has length 10 [2022-11-02 21:05:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:27,180 INFO L495 AbstractCegarLoop]: Abstraction has 3791 states and 10336 transitions. [2022-11-02 21:05:27,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 21:05:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3791 states and 10336 transitions. [2022-11-02 21:05:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:05:27,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:27,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:27,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:27,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:05:27,403 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 21:05:27,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash -411786492, now seen corresponding path program 1 times [2022-11-02 21:05:27,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:27,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512744801] [2022-11-02 21:05:27,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:27,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:27,706 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 21:05:27,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:27,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512744801] [2022-11-02 21:05:27,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512744801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:27,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:27,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576755611] [2022-11-02 21:05:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:27,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:05:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:05:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:05:27,709 INFO L87 Difference]: Start difference. First operand 3791 states and 10336 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 21:05:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:28,614 INFO L93 Difference]: Finished difference Result 7516 states and 20322 transitions. [2022-11-02 21:05:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:05:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 21:05:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:28,661 INFO L225 Difference]: With dead ends: 7516 [2022-11-02 21:05:28,661 INFO L226 Difference]: Without dead ends: 7516 [2022-11-02 21:05:28,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:05:28,663 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 270 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:28,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 160 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:05:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2022-11-02 21:05:28,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 4839. [2022-11-02 21:05:28,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4839 states, 4748 states have (on average 2.846040438079191) internal successors, (13513), 4838 states have internal predecessors, (13513), 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 21:05:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4839 states to 4839 states and 13513 transitions. [2022-11-02 21:05:28,881 INFO L78 Accepts]: Start accepts. Automaton has 4839 states and 13513 transitions. Word has length 11 [2022-11-02 21:05:28,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:28,882 INFO L495 AbstractCegarLoop]: Abstraction has 4839 states and 13513 transitions. [2022-11-02 21:05:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 21:05:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4839 states and 13513 transitions. [2022-11-02 21:05:28,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:05:28,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:28,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:28,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:05:28,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:28,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash -411786530, now seen corresponding path program 1 times [2022-11-02 21:05:28,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:28,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562342611] [2022-11-02 21:05:28,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:28,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:28,998 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 21:05:28,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:28,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562342611] [2022-11-02 21:05:28,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562342611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:28,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:28,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:28,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923461273] [2022-11-02 21:05:28,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:29,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:29,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:29,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:29,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:29,001 INFO L87 Difference]: Start difference. First operand 4839 states and 13513 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 21:05:29,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:29,152 INFO L93 Difference]: Finished difference Result 5774 states and 15983 transitions. [2022-11-02 21:05:29,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:29,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 21:05:29,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:29,177 INFO L225 Difference]: With dead ends: 5774 [2022-11-02 21:05:29,177 INFO L226 Difference]: Without dead ends: 5742 [2022-11-02 21:05:29,178 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 21:05:29,180 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:29,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 22 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2022-11-02 21:05:29,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5400. [2022-11-02 21:05:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5400 states, 5309 states have (on average 2.845733659822942) internal successors, (15108), 5399 states have internal predecessors, (15108), 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 21:05:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 15108 transitions. [2022-11-02 21:05:29,425 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 15108 transitions. Word has length 11 [2022-11-02 21:05:29,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:29,426 INFO L495 AbstractCegarLoop]: Abstraction has 5400 states and 15108 transitions. [2022-11-02 21:05:29,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 21:05:29,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 15108 transitions. [2022-11-02 21:05:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:05:29,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:29,428 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:05:29,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:29,429 INFO L85 PathProgramCache]: Analyzing trace with hash -372981648, now seen corresponding path program 1 times [2022-11-02 21:05:29,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:29,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333149593] [2022-11-02 21:05:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:29,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:29,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:29,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333149593] [2022-11-02 21:05:29,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333149593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:29,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137577040] [2022-11-02 21:05:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:29,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:29,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:29,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:29,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:05:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:29,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 21:05:29,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:29,737 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 21:05:29,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 21:05:29,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:05:29,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:05:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:29,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:29,933 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_106 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_106) |c_~#global~0.base|) |c_~#global~0.offset|) 2147483647)) is different from false [2022-11-02 21:05:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-02 21:05:29,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137577040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:29,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:05:29,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2022-11-02 21:05:29,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708880798] [2022-11-02 21:05:29,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:29,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:05:29,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:29,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:05:29,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=66, Unknown=1, NotChecked=16, Total=110 [2022-11-02 21:05:29,964 INFO L87 Difference]: Start difference. First operand 5400 states and 15108 transitions. Second operand has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 21:05:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:30,572 INFO L93 Difference]: Finished difference Result 7808 states and 21060 transitions. [2022-11-02 21:05:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:05:30,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 21:05:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:30,605 INFO L225 Difference]: With dead ends: 7808 [2022-11-02 21:05:30,606 INFO L226 Difference]: Without dead ends: 7808 [2022-11-02 21:05:30,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=165, Unknown=1, NotChecked=28, Total=272 [2022-11-02 21:05:30,606 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 253 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 172 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:30,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 99 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 522 Invalid, 0 Unknown, 172 Unchecked, 0.4s Time] [2022-11-02 21:05:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-11-02 21:05:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 5492. [2022-11-02 21:05:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5401 states have (on average 2.834104795408258) internal successors, (15307), 5491 states have internal predecessors, (15307), 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 21:05:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 15307 transitions. [2022-11-02 21:05:30,822 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 15307 transitions. Word has length 11 [2022-11-02 21:05:30,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:30,823 INFO L495 AbstractCegarLoop]: Abstraction has 5492 states and 15307 transitions. [2022-11-02 21:05:30,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 21:05:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 15307 transitions. [2022-11-02 21:05:30,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:05:30,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:30,824 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-02 21:05:30,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:31,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 21:05:31,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-02 21:05:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash -381659594, now seen corresponding path program 1 times [2022-11-02 21:05:31,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:31,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547034402] [2022-11-02 21:05:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:31,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:05:31,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:05:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:05:31,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:05:31,069 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:05:31,069 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-02 21:05:31,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-11-02 21:05:31,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-11-02 21:05:31,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-11-02 21:05:31,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-11-02 21:05:31,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-11-02 21:05:31,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-11-02 21:05:31,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-11-02 21:05:31,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-11-02 21:05:31,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-11-02 21:05:31,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-11-02 21:05:31,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-11-02 21:05:31,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-11-02 21:05:31,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-11-02 21:05:31,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-11-02 21:05:31,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-11-02 21:05:31,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-11-02 21:05:31,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:05:31,074 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:31,074 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 21:05:31,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 21:05:31,107 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 21:05:31,113 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 21:05:31,113 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 224 transitions, 478 flow [2022-11-02 21:05:31,113 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 224 transitions, 478 flow [2022-11-02 21:05:31,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 224 transitions, 478 flow [2022-11-02 21:05:31,222 INFO L130 PetriNetUnfolder]: 50/450 cut-off events. [2022-11-02 21:05:31,222 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-02 21:05:31,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 450 events. 50/450 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1593 event pairs, 1 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 300. Up to 16 conditions per place. [2022-11-02 21:05:31,249 INFO L118 LiptonReduction]: Number of co-enabled transitions 24354 [2022-11-02 21:05:37,341 INFO L133 LiptonReduction]: Checked pairs total: 54076 [2022-11-02 21:05:37,341 INFO L135 LiptonReduction]: Total number of compositions: 207 [2022-11-02 21:05:37,342 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 90 transitions, 210 flow [2022-11-02 21:05:39,819 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65789 states, 64832 states have (on average 4.972822063178677) internal successors, (322398), 65788 states have internal predecessors, (322398), 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 21:05:39,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:05:39,821 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;@587893af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:05:39,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-02 21:05:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 65789 states, 64832 states have (on average 4.972822063178677) internal successors, (322398), 65788 states have internal predecessors, (322398), 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 21:05:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 21:05:40,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:40,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 21:05:40,105 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 21:05:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1330415586, now seen corresponding path program 1 times [2022-11-02 21:05:40,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:40,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612277687] [2022-11-02 21:05:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:40,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:40,147 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 21:05:40,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:40,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612277687] [2022-11-02 21:05:40,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612277687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:40,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:40,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 21:05:40,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905944811] [2022-11-02 21:05:40,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:40,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:40,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:40,257 INFO L87 Difference]: Start difference. First operand has 65789 states, 64832 states have (on average 4.972822063178677) internal successors, (322398), 65788 states have internal predecessors, (322398), 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 21:05:41,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:41,406 INFO L93 Difference]: Finished difference Result 65753 states and 238574 transitions. [2022-11-02 21:05:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:41,407 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 21:05:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:42,202 INFO L225 Difference]: With dead ends: 65753 [2022-11-02 21:05:42,202 INFO L226 Difference]: Without dead ends: 65627 [2022-11-02 21:05:42,202 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 21:05:42,203 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:42,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65627 states. [2022-11-02 21:05:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65627 to 65627. [2022-11-02 21:05:44,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65627 states, 64688 states have (on average 3.681486519910957) internal successors, (238148), 65626 states have internal predecessors, (238148), 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 21:05:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65627 states to 65627 states and 238148 transitions. [2022-11-02 21:05:45,550 INFO L78 Accepts]: Start accepts. Automaton has 65627 states and 238148 transitions. Word has length 5 [2022-11-02 21:05:45,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:45,551 INFO L495 AbstractCegarLoop]: Abstraction has 65627 states and 238148 transitions. [2022-11-02 21:05:45,551 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 21:05:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 65627 states and 238148 transitions. [2022-11-02 21:05:45,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 21:05:45,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:45,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:45,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:05:45,553 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 21:05:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1360764014, now seen corresponding path program 1 times [2022-11-02 21:05:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:45,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164153663] [2022-11-02 21:05:45,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:45,669 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 21:05:45,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:45,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164153663] [2022-11-02 21:05:45,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164153663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:45,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:45,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:45,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134794962] [2022-11-02 21:05:45,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:45,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:45,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:45,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:45,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:45,672 INFO L87 Difference]: Start difference. First operand 65627 states and 238148 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 21:05:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:46,976 INFO L93 Difference]: Finished difference Result 98730 states and 352664 transitions. [2022-11-02 21:05:46,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:46,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 21:05:46,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:48,098 INFO L225 Difference]: With dead ends: 98730 [2022-11-02 21:05:48,098 INFO L226 Difference]: Without dead ends: 98730 [2022-11-02 21:05:48,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:05:48,099 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 185 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:48,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 61 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:05:48,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98730 states. [2022-11-02 21:05:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98730 to 73020. [2022-11-02 21:05:50,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73020 states, 72081 states have (on average 3.6743663378698965) internal successors, (264852), 73019 states have internal predecessors, (264852), 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 21:05:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73020 states to 73020 states and 264852 transitions. [2022-11-02 21:05:51,162 INFO L78 Accepts]: Start accepts. Automaton has 73020 states and 264852 transitions. Word has length 7 [2022-11-02 21:05:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:51,162 INFO L495 AbstractCegarLoop]: Abstraction has 73020 states and 264852 transitions. [2022-11-02 21:05:51,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 21:05:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 73020 states and 264852 transitions. [2022-11-02 21:05:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:05:51,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:51,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 21:05:51,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:05:51,164 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 21:05:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1208257067, now seen corresponding path program 1 times [2022-11-02 21:05:51,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:51,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528919526] [2022-11-02 21:05:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:51,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:51,219 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 21:05:51,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528919526] [2022-11-02 21:05:51,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528919526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167028340] [2022-11-02 21:05:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:51,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:51,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:51,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:51,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:05:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:51,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:05:51,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:51,336 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 21:05:51,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:51,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167028340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:51,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:05:51,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-02 21:05:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847798734] [2022-11-02 21:05:51,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:51,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:51,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:51,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:51,340 INFO L87 Difference]: Start difference. First operand 73020 states and 264852 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 21:05:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:52,417 INFO L93 Difference]: Finished difference Result 68500 states and 247849 transitions. [2022-11-02 21:05:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:05:52,418 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 21:05:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:52,779 INFO L225 Difference]: With dead ends: 68500 [2022-11-02 21:05:52,779 INFO L226 Difference]: Without dead ends: 68500 [2022-11-02 21:05:52,779 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 21:05:52,779 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 76 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:52,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 20 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:52,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68500 states. [2022-11-02 21:05:55,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68500 to 68500. [2022-11-02 21:05:55,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68500 states, 67711 states have (on average 3.660394913677246) internal successors, (247849), 68499 states have internal predecessors, (247849), 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 21:05:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68500 states to 68500 states and 247849 transitions. [2022-11-02 21:05:56,031 INFO L78 Accepts]: Start accepts. Automaton has 68500 states and 247849 transitions. Word has length 9 [2022-11-02 21:05:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:56,031 INFO L495 AbstractCegarLoop]: Abstraction has 68500 states and 247849 transitions. [2022-11-02 21:05:56,031 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 21:05:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 68500 states and 247849 transitions. [2022-11-02 21:05:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:05:56,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:56,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 21:05:56,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-02 21:05:56,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:56,232 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 21:05:56,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:56,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1208257068, now seen corresponding path program 1 times [2022-11-02 21:05:56,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:56,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769124761] [2022-11-02 21:05:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:56,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,261 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 21:05:56,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:56,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769124761] [2022-11-02 21:05:56,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769124761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:56,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:56,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:56,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072069704] [2022-11-02 21:05:56,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:56,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:56,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:56,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:56,263 INFO L87 Difference]: Start difference. First operand 68500 states and 247849 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 21:05:56,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:56,859 INFO L93 Difference]: Finished difference Result 63980 states and 230846 transitions. [2022-11-02 21:05:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:56,859 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 21:05:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:57,164 INFO L225 Difference]: With dead ends: 63980 [2022-11-02 21:05:57,164 INFO L226 Difference]: Without dead ends: 63980 [2022-11-02 21:05:57,164 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 21:05:57,165 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 48 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:57,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 22 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:05:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63980 states. [2022-11-02 21:05:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63980 to 63980. [2022-11-02 21:05:59,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63980 states, 63341 states have (on average 3.6444956663140777) internal successors, (230846), 63979 states have internal predecessors, (230846), 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 21:05:59,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63980 states to 63980 states and 230846 transitions. [2022-11-02 21:05:59,801 INFO L78 Accepts]: Start accepts. Automaton has 63980 states and 230846 transitions. Word has length 9 [2022-11-02 21:05:59,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:59,801 INFO L495 AbstractCegarLoop]: Abstraction has 63980 states and 230846 transitions. [2022-11-02 21:05:59,801 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 21:05:59,802 INFO L276 IsEmpty]: Start isEmpty. Operand 63980 states and 230846 transitions. [2022-11-02 21:05:59,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 21:05:59,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:59,802 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:59,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:05:59,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 21:05:59,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:59,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1169905995, now seen corresponding path program 1 times [2022-11-02 21:05:59,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:59,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957793934] [2022-11-02 21:05:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:59,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:59,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957793934] [2022-11-02 21:05:59,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957793934] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:59,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954331978] [2022-11-02 21:05:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:59,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:59,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:59,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:59,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:06:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 21:06:00,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:00,040 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 21:06:00,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 21:06:00,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:06:00,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:06:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:06:00,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:00,174 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_166 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_166) c_t_funThread1of3ForFork0_~p~0.base) c_t_funThread1of3ForFork0_~p~0.offset) 2147483647)) is different from false [2022-11-02 21:06:00,180 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_166 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_166) |c_~#global~0.base|) |c_~#global~0.offset|) 2147483647)) is different from false [2022-11-02 21:06:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-02 21:06:00,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954331978] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:06:00,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:06:00,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2022-11-02 21:06:00,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148347065] [2022-11-02 21:06:00,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:00,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:06:00,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:00,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:06:00,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=53, Unknown=2, NotChecked=30, Total=110 [2022-11-02 21:06:00,196 INFO L87 Difference]: Start difference. First operand 63980 states and 230846 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 21:06:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:01,935 INFO L93 Difference]: Finished difference Result 68818 states and 242313 transitions. [2022-11-02 21:06:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 10 [2022-11-02 21:06:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:02,276 INFO L225 Difference]: With dead ends: 68818 [2022-11-02 21:06:02,277 INFO L226 Difference]: Without dead ends: 68818 [2022-11-02 21:06:02,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=93, Unknown=2, NotChecked=42, Total=182 [2022-11-02 21:06:02,277 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 196 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 266 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:02,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 157 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 677 Invalid, 0 Unknown, 266 Unchecked, 0.5s Time] [2022-11-02 21:06:02,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68818 states. [2022-11-02 21:06:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68818 to 60755. [2022-11-02 21:06:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60755 states, 60140 states have (on average 3.632291320252744) internal successors, (218446), 60754 states have internal predecessors, (218446), 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 21:06:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60755 states to 60755 states and 218446 transitions. [2022-11-02 21:06:04,538 INFO L78 Accepts]: Start accepts. Automaton has 60755 states and 218446 transitions. Word has length 10 [2022-11-02 21:06:04,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:04,538 INFO L495 AbstractCegarLoop]: Abstraction has 60755 states and 218446 transitions. [2022-11-02 21:06:04,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 21:06:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 60755 states and 218446 transitions. [2022-11-02 21:06:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:06:04,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:04,540 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:04,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-02 21:06:04,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-02 21:06:04,748 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 21:06:04,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1503432068, now seen corresponding path program 1 times [2022-11-02 21:06:04,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:04,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74298809] [2022-11-02 21:06:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:04,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:06:04,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:04,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74298809] [2022-11-02 21:06:04,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74298809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:04,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959680486] [2022-11-02 21:06:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:04,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:04,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:04,848 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:04,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:06:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 21:06:04,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:04,968 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 21:06:04,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 21:06:04,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:06:05,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 21:06:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:06:05,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:05,113 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_188 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_188) |c_~#global~0.base|) |c_~#global~0.offset|) 2147483647)) is different from false [2022-11-02 21:06:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-02 21:06:05,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959680486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:06:05,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:06:05,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2022-11-02 21:06:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153993698] [2022-11-02 21:06:05,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:05,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:06:05,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:05,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:06:05,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=66, Unknown=1, NotChecked=16, Total=110 [2022-11-02 21:06:05,145 INFO L87 Difference]: Start difference. First operand 60755 states and 218446 transitions. Second operand has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 21:06:07,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:07,177 INFO L93 Difference]: Finished difference Result 97360 states and 336640 transitions. [2022-11-02 21:06:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:06:07,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 21:06:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:07,676 INFO L225 Difference]: With dead ends: 97360 [2022-11-02 21:06:07,676 INFO L226 Difference]: Without dead ends: 97360 [2022-11-02 21:06:07,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=165, Unknown=1, NotChecked=28, Total=272 [2022-11-02 21:06:07,677 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 296 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 118 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:07,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 212 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1060 Invalid, 0 Unknown, 118 Unchecked, 1.3s Time] [2022-11-02 21:06:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97360 states. [2022-11-02 21:06:10,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97360 to 65387. [2022-11-02 21:06:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65387 states, 64772 states have (on average 3.6187550176001975) internal successors, (234394), 65386 states have internal predecessors, (234394), 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 21:06:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65387 states to 65387 states and 234394 transitions. [2022-11-02 21:06:10,826 INFO L78 Accepts]: Start accepts. Automaton has 65387 states and 234394 transitions. Word has length 11 [2022-11-02 21:06:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:10,827 INFO L495 AbstractCegarLoop]: Abstraction has 65387 states and 234394 transitions. [2022-11-02 21:06:10,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 21:06:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 65387 states and 234394 transitions. [2022-11-02 21:06:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:06:10,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:10,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:10,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:11,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94291a07-7c44-4344-a6b8-95509a36f7d6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-02 21:06:11,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 21:06:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash 443563140, now seen corresponding path program 1 times [2022-11-02 21:06:11,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:11,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545744523] [2022-11-02 21:06:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:11,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:11,139 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 21:06:11,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:11,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545744523] [2022-11-02 21:06:11,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545744523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:11,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:11,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:06:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623207338] [2022-11-02 21:06:11,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:11,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:06:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:11,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:06:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:06:11,142 INFO L87 Difference]: Start difference. First operand 65387 states and 234394 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 21:06:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:11,962 INFO L93 Difference]: Finished difference Result 86118 states and 308927 transitions. [2022-11-02 21:06:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:06:11,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 21:06:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:13,200 INFO L225 Difference]: With dead ends: 86118 [2022-11-02 21:06:13,200 INFO L226 Difference]: Without dead ends: 86118 [2022-11-02 21:06:13,200 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 21:06:13,201 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 46 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:13,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 31 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86118 states. [2022-11-02 21:06:15,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86118 to 76596. [2022-11-02 21:06:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76596 states, 75981 states have (on average 3.679946302365065) internal successors, (279606), 76595 states have internal predecessors, (279606), 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 21:06:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76596 states to 76596 states and 279606 transitions. [2022-11-02 21:06:15,483 INFO L78 Accepts]: Start accepts. Automaton has 76596 states and 279606 transitions. Word has length 11 [2022-11-02 21:06:15,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:15,483 INFO L495 AbstractCegarLoop]: Abstraction has 76596 states and 279606 transitions. [2022-11-02 21:06:15,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 21:06:15,483 INFO L276 IsEmpty]: Start isEmpty. Operand 76596 states and 279606 transitions. [2022-11-02 21:06:15,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:06:15,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:15,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:15,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:06:15,484 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 21:06:15,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 443563197, now seen corresponding path program 1 times [2022-11-02 21:06:15,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:15,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080333826] [2022-11-02 21:06:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:15,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:15,673 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 21:06:15,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:15,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080333826] [2022-11-02 21:06:15,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080333826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:15,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:15,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:15,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767590327] [2022-11-02 21:06:15,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:15,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:06:15,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:15,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:06:15,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:15,678 INFO L87 Difference]: Start difference. First operand 76596 states and 279606 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 21:06:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:18,391 INFO L93 Difference]: Finished difference Result 148976 states and 530141 transitions. [2022-11-02 21:06:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:06:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 21:06:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:19,846 INFO L225 Difference]: With dead ends: 148976 [2022-11-02 21:06:19,847 INFO L226 Difference]: Without dead ends: 148768 [2022-11-02 21:06:19,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:06:19,849 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 343 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:19,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 225 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]