./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro --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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- 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-8393723 [2022-11-18 20:12:07,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:12:07,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:12:07,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:12:07,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:12:07,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:12:07,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:12:07,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:12:07,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:12:07,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:12:07,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:12:07,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:12:07,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:12:07,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:12:07,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:12:07,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:12:07,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:12:07,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:12:07,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:12:07,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:12:07,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:12:07,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:12:07,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:12:07,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:12:07,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:12:07,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:12:07,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:12:07,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:12:07,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:12:07,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:12:07,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:12:07,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:12:07,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:12:07,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:12:07,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:12:07,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:12:07,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:12:07,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:12:07,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:12:07,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:12:07,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:12:07,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:12:07,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:12:07,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:12:07,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:12:07,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:12:07,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:12:07,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:12:07,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:12:07,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:12:07,544 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:12:07,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:12:07,546 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:12:07,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:12:07,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:12:07,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:12:07,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:12:07,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:12:07,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:12:07,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:12:07,549 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:12:07,549 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:12:07,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:12:07,549 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:12:07,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:12:07,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:12:07,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:12:07,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:12:07,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:12:07,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:12:07,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:12:07,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:12:07,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:12:07,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:12:07,554 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:12:07,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:12:07,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:12:07,554 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_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2022-11-18 20:12:07,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:12:07,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:12:07,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:12:07,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:12:07,932 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:12:07,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-18 20:12:08,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/data/4f0e5a3e9/35cc1b8c0dab4868a589a90c33f199bd/FLAGf662e5c83 [2022-11-18 20:12:08,619 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:12:08,620 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-18 20:12:08,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/data/4f0e5a3e9/35cc1b8c0dab4868a589a90c33f199bd/FLAGf662e5c83 [2022-11-18 20:12:08,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/data/4f0e5a3e9/35cc1b8c0dab4868a589a90c33f199bd [2022-11-18 20:12:08,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:12:08,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:12:08,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:12:08,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:12:08,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:12:08,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:12:08" (1/1) ... [2022-11-18 20:12:08,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3351cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:08, skipping insertion in model container [2022-11-18 20:12:08,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:12:08" (1/1) ... [2022-11-18 20:12:08,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:12:09,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:12:09,300 WARN L234 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_b6134633-4f42-471a-8e64-536661b5cc78/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-11-18 20:12:09,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:12:09,585 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:12:09,600 WARN L234 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_b6134633-4f42-471a-8e64-536661b5cc78/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-11-18 20:12:09,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:12:09,712 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:12:09,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09 WrapperNode [2022-11-18 20:12:09,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:12:09,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:12:09,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:12:09,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:12:09,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,806 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 167 [2022-11-18 20:12:09,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:12:09,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:12:09,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:12:09,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:12:09,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:12:09,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:12:09,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:12:09,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:12:09,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (1/1) ... [2022-11-18 20:12:09,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:12:09,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:12:09,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:12:09,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:12:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:12:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:12:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:12:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:12:09,949 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:12:10,083 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:12:10,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:12:10,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:12:10,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:12:10,580 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:12:10,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:10 BoogieIcfgContainer [2022-11-18 20:12:10,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:12:10,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:12:10,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:12:10,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:12:10,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:12:08" (1/3) ... [2022-11-18 20:12:10,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e37299c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:12:10, skipping insertion in model container [2022-11-18 20:12:10,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:12:09" (2/3) ... [2022-11-18 20:12:10,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e37299c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:12:10, skipping insertion in model container [2022-11-18 20:12:10,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:10" (3/3) ... [2022-11-18 20:12:10,593 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-18 20:12:10,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:12:10,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:12:10,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-18 20:12:10,617 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:12:10,844 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:12:10,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 224 transitions, 453 flow [2022-11-18 20:12:11,128 INFO L130 PetriNetUnfolder]: 12/227 cut-off events. [2022-11-18 20:12:11,129 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:12:11,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 227 events. 12/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 270 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-11-18 20:12:11,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 224 transitions, 453 flow [2022-11-18 20:12:11,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 222 transitions, 447 flow [2022-11-18 20:12:11,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:12:11,202 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@664c2708, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:12:11,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-18 20:12:11,232 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-11-18 20:12:11,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:12:11,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:11,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:11,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:11,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:11,241 INFO L85 PathProgramCache]: Analyzing trace with hash 927480398, now seen corresponding path program 1 times [2022-11-18 20:12:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:11,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97338051] [2022-11-18 20:12:11,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:11,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:11,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97338051] [2022-11-18 20:12:11,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97338051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:11,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:11,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:12:11,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483194719] [2022-11-18 20:12:11,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:11,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:12:11,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:11,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:12:11,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:12:11,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-11-18 20:12:11,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 222 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 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) [2022-11-18 20:12:11,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:11,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-11-18 20:12:11,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:12,146 INFO L130 PetriNetUnfolder]: 5/211 cut-off events. [2022-11-18 20:12:12,146 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:12:12,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 211 events. 5/211 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 32/220 useless extension candidates. Maximal degree in co-relation 185. Up to 17 conditions per place. [2022-11-18 20:12:12,158 INFO L137 encePairwiseOnDemand]: 214/224 looper letters, 18 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-18 20:12:12,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 211 transitions, 465 flow [2022-11-18 20:12:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:12:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:12:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 810 transitions. [2022-11-18 20:12:12,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9040178571428571 [2022-11-18 20:12:12,189 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 810 transitions. [2022-11-18 20:12:12,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 810 transitions. [2022-11-18 20:12:12,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:12,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 810 transitions. [2022-11-18 20:12:12,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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) [2022-11-18 20:12:12,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:12,222 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:12,224 INFO L175 Difference]: Start difference. First operand has 214 places, 222 transitions, 447 flow. Second operand 4 states and 810 transitions. [2022-11-18 20:12:12,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 211 transitions, 465 flow [2022-11-18 20:12:12,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 211 transitions, 464 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:12:12,242 INFO L231 Difference]: Finished difference. Result has 212 places, 211 transitions, 428 flow [2022-11-18 20:12:12,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=212, PETRI_TRANSITIONS=211} [2022-11-18 20:12:12,249 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-11-18 20:12:12,249 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 211 transitions, 428 flow [2022-11-18 20:12:12,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 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) [2022-11-18 20:12:12,251 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:12,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:12,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:12:12,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:12,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:12,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1312878296, now seen corresponding path program 1 times [2022-11-18 20:12:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:12,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365894938] [2022-11-18 20:12:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:12,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:12,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:12,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365894938] [2022-11-18 20:12:12,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365894938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:12,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:12,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:12:12,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748939912] [2022-11-18 20:12:12,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:12,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:12:12,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:12,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:12:12,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:12:12,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 224 [2022-11-18 20:12:12,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 211 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 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) [2022-11-18 20:12:12,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:12,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 224 [2022-11-18 20:12:12,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:12,612 INFO L130 PetriNetUnfolder]: 5/256 cut-off events. [2022-11-18 20:12:12,612 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:12:12,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 256 events. 5/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 466 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 243. Up to 15 conditions per place. [2022-11-18 20:12:12,617 INFO L137 encePairwiseOnDemand]: 218/224 looper letters, 27 selfloop transitions, 4 changer transitions 0/219 dead transitions. [2022-11-18 20:12:12,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 219 transitions, 506 flow [2022-11-18 20:12:12,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:12:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:12:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 793 transitions. [2022-11-18 20:12:12,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8850446428571429 [2022-11-18 20:12:12,621 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 793 transitions. [2022-11-18 20:12:12,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 793 transitions. [2022-11-18 20:12:12,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:12,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 793 transitions. [2022-11-18 20:12:12,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 198.25) internal successors, (793), 4 states have internal predecessors, (793), 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) [2022-11-18 20:12:12,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:12,650 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:12,650 INFO L175 Difference]: Start difference. First operand has 212 places, 211 transitions, 428 flow. Second operand 4 states and 793 transitions. [2022-11-18 20:12:12,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 219 transitions, 506 flow [2022-11-18 20:12:12,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 219 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:12:12,657 INFO L231 Difference]: Finished difference. Result has 215 places, 212 transitions, 449 flow [2022-11-18 20:12:12,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=215, PETRI_TRANSITIONS=212} [2022-11-18 20:12:12,659 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2022-11-18 20:12:12,659 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 212 transitions, 449 flow [2022-11-18 20:12:12,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 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) [2022-11-18 20:12:12,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:12,661 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:12,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:12:12,661 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:12,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:12,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2146168375, now seen corresponding path program 1 times [2022-11-18 20:12:12,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:12,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645762785] [2022-11-18 20:12:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:12,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:12,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:12,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645762785] [2022-11-18 20:12:12,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645762785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:12,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:12,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:12:12,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805843178] [2022-11-18 20:12:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:12,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:12:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:12:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:12:12,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 224 [2022-11-18 20:12:12,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 212 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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) [2022-11-18 20:12:12,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:12,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 224 [2022-11-18 20:12:12,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:12,975 INFO L130 PetriNetUnfolder]: 3/205 cut-off events. [2022-11-18 20:12:12,976 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:12:12,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 205 events. 3/205 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 221 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 184. Up to 11 conditions per place. [2022-11-18 20:12:12,978 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 0/205 dead transitions. [2022-11-18 20:12:12,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 205 transitions, 461 flow [2022-11-18 20:12:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:12:12,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:12:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 964 transitions. [2022-11-18 20:12:12,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8607142857142858 [2022-11-18 20:12:12,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 964 transitions. [2022-11-18 20:12:12,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 964 transitions. [2022-11-18 20:12:12,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:12,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 964 transitions. [2022-11-18 20:12:12,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 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) [2022-11-18 20:12:12,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:12,991 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:12,991 INFO L175 Difference]: Start difference. First operand has 215 places, 212 transitions, 449 flow. Second operand 5 states and 964 transitions. [2022-11-18 20:12:12,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 205 transitions, 461 flow [2022-11-18 20:12:12,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 205 transitions, 450 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-18 20:12:12,997 INFO L231 Difference]: Finished difference. Result has 211 places, 205 transitions, 422 flow [2022-11-18 20:12:12,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=211, PETRI_TRANSITIONS=205} [2022-11-18 20:12:12,999 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -3 predicate places. [2022-11-18 20:12:12,999 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 205 transitions, 422 flow [2022-11-18 20:12:13,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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) [2022-11-18 20:12:13,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:13,001 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:13,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:12:13,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:13,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -384400290, now seen corresponding path program 1 times [2022-11-18 20:12:13,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:13,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462289569] [2022-11-18 20:12:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:13,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:13,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462289569] [2022-11-18 20:12:13,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462289569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:13,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:13,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:12:13,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066217446] [2022-11-18 20:12:13,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:13,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:12:13,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:12:13,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:12:13,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 224 [2022-11-18 20:12:13,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 205 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 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) [2022-11-18 20:12:13,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:13,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 224 [2022-11-18 20:12:13,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:13,299 INFO L130 PetriNetUnfolder]: 3/203 cut-off events. [2022-11-18 20:12:13,299 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:12:13,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 203 events. 3/203 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 212 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 182. Up to 12 conditions per place. [2022-11-18 20:12:13,301 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 15 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2022-11-18 20:12:13,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 203 transitions, 456 flow [2022-11-18 20:12:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:12:13,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:12:13,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 950 transitions. [2022-11-18 20:12:13,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2022-11-18 20:12:13,305 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 950 transitions. [2022-11-18 20:12:13,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 950 transitions. [2022-11-18 20:12:13,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:13,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 950 transitions. [2022-11-18 20:12:13,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 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) [2022-11-18 20:12:13,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:13,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:13,313 INFO L175 Difference]: Start difference. First operand has 211 places, 205 transitions, 422 flow. Second operand 5 states and 950 transitions. [2022-11-18 20:12:13,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 203 transitions, 456 flow [2022-11-18 20:12:13,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 203 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:12:13,318 INFO L231 Difference]: Finished difference. Result has 209 places, 203 transitions, 418 flow [2022-11-18 20:12:13,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=418, PETRI_PLACES=209, PETRI_TRANSITIONS=203} [2022-11-18 20:12:13,320 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -5 predicate places. [2022-11-18 20:12:13,320 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 203 transitions, 418 flow [2022-11-18 20:12:13,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 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) [2022-11-18 20:12:13,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:13,321 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:13,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:12:13,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:13,322 INFO L85 PathProgramCache]: Analyzing trace with hash 694609151, now seen corresponding path program 1 times [2022-11-18 20:12:13,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:13,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589947310] [2022-11-18 20:12:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:13,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:13,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589947310] [2022-11-18 20:12:13,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589947310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:13,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:13,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:12:13,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606842554] [2022-11-18 20:12:13,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:13,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:12:13,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:13,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:12:13,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:12:13,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 224 [2022-11-18 20:12:13,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 203 transitions, 418 flow. Second operand has 8 states, 8 states have (on average 182.5) internal successors, (1460), 8 states have internal predecessors, (1460), 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) [2022-11-18 20:12:13,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:13,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 224 [2022-11-18 20:12:13,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:13,647 INFO L130 PetriNetUnfolder]: 3/202 cut-off events. [2022-11-18 20:12:13,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:12:13,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 202 events. 3/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 209 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2022-11-18 20:12:13,649 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 17 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2022-11-18 20:12:13,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 202 transitions, 464 flow [2022-11-18 20:12:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:12:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:12:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1645 transitions. [2022-11-18 20:12:13,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8159722222222222 [2022-11-18 20:12:13,656 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1645 transitions. [2022-11-18 20:12:13,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1645 transitions. [2022-11-18 20:12:13,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:13,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1645 transitions. [2022-11-18 20:12:13,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.77777777777777) internal successors, (1645), 9 states have internal predecessors, (1645), 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) [2022-11-18 20:12:13,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 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) [2022-11-18 20:12:13,666 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 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) [2022-11-18 20:12:13,666 INFO L175 Difference]: Start difference. First operand has 209 places, 203 transitions, 418 flow. Second operand 9 states and 1645 transitions. [2022-11-18 20:12:13,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 202 transitions, 464 flow [2022-11-18 20:12:13,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 202 transitions, 456 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:12:13,671 INFO L231 Difference]: Finished difference. Result has 212 places, 202 transitions, 422 flow [2022-11-18 20:12:13,672 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=422, PETRI_PLACES=212, PETRI_TRANSITIONS=202} [2022-11-18 20:12:13,675 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-11-18 20:12:13,675 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 202 transitions, 422 flow [2022-11-18 20:12:13,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.5) internal successors, (1460), 8 states have internal predecessors, (1460), 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) [2022-11-18 20:12:13,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:13,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:13,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:12:13,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:13,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:13,678 INFO L85 PathProgramCache]: Analyzing trace with hash 58047526, now seen corresponding path program 1 times [2022-11-18 20:12:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277067468] [2022-11-18 20:12:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:13,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:13,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:13,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277067468] [2022-11-18 20:12:13,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277067468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:13,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:13,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:12:13,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272036015] [2022-11-18 20:12:13,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:13,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:12:13,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:13,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:12:13,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:13,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 224 [2022-11-18 20:12:13,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 202 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 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) [2022-11-18 20:12:13,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:13,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 224 [2022-11-18 20:12:13,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:13,982 INFO L130 PetriNetUnfolder]: 3/201 cut-off events. [2022-11-18 20:12:13,982 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:12:13,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 201 events. 3/201 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 207 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 176. Up to 10 conditions per place. [2022-11-18 20:12:13,984 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 24/201 dead transitions. [2022-11-18 20:12:13,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 201 transitions, 456 flow [2022-11-18 20:12:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:12:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:12:13,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1135 transitions. [2022-11-18 20:12:13,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8444940476190477 [2022-11-18 20:12:13,987 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1135 transitions. [2022-11-18 20:12:13,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1135 transitions. [2022-11-18 20:12:13,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:13,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1135 transitions. [2022-11-18 20:12:13,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 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) [2022-11-18 20:12:13,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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) [2022-11-18 20:12:13,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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) [2022-11-18 20:12:13,996 INFO L175 Difference]: Start difference. First operand has 212 places, 202 transitions, 422 flow. Second operand 6 states and 1135 transitions. [2022-11-18 20:12:13,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 201 transitions, 456 flow [2022-11-18 20:12:13,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 201 transitions, 443 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-18 20:12:14,000 INFO L231 Difference]: Finished difference. Result has 209 places, 177 transitions, 367 flow [2022-11-18 20:12:14,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=209, PETRI_TRANSITIONS=177} [2022-11-18 20:12:14,003 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -5 predicate places. [2022-11-18 20:12:14,004 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 177 transitions, 367 flow [2022-11-18 20:12:14,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 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) [2022-11-18 20:12:14,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:14,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:14,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:12:14,005 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:14,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1264373355, now seen corresponding path program 1 times [2022-11-18 20:12:14,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:14,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59531794] [2022-11-18 20:12:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:14,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:14,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:14,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59531794] [2022-11-18 20:12:14,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59531794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:14,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:14,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:12:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777248312] [2022-11-18 20:12:14,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:14,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:12:14,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:14,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:12:14,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:12:14,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-11-18 20:12:14,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 177 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 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) [2022-11-18 20:12:14,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:14,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-11-18 20:12:14,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:14,167 INFO L130 PetriNetUnfolder]: 2/175 cut-off events. [2022-11-18 20:12:14,167 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:12:14,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 175 events. 2/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 160 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 152. Up to 14 conditions per place. [2022-11-18 20:12:14,168 INFO L137 encePairwiseOnDemand]: 220/224 looper letters, 15 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-11-18 20:12:14,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 175 transitions, 397 flow [2022-11-18 20:12:14,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:12:14,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:12:14,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 791 transitions. [2022-11-18 20:12:14,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8828125 [2022-11-18 20:12:14,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 791 transitions. [2022-11-18 20:12:14,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 791 transitions. [2022-11-18 20:12:14,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:14,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 791 transitions. [2022-11-18 20:12:14,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 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) [2022-11-18 20:12:14,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:14,177 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:14,177 INFO L175 Difference]: Start difference. First operand has 209 places, 177 transitions, 367 flow. Second operand 4 states and 791 transitions. [2022-11-18 20:12:14,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 175 transitions, 397 flow [2022-11-18 20:12:14,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 175 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:12:14,181 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 360 flow [2022-11-18 20:12:14,182 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2022-11-18 20:12:14,182 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -31 predicate places. [2022-11-18 20:12:14,182 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 360 flow [2022-11-18 20:12:14,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 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) [2022-11-18 20:12:14,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:14,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:14,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:12:14,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:14,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:14,184 INFO L85 PathProgramCache]: Analyzing trace with hash -540867751, now seen corresponding path program 1 times [2022-11-18 20:12:14,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:14,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292659915] [2022-11-18 20:12:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:14,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:14,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292659915] [2022-11-18 20:12:14,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292659915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:14,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:14,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:12:14,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594626660] [2022-11-18 20:12:14,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:14,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:12:14,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:14,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:12:14,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:12:14,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-11-18 20:12:14,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 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) [2022-11-18 20:12:14,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:14,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-11-18 20:12:14,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:14,341 INFO L130 PetriNetUnfolder]: 2/173 cut-off events. [2022-11-18 20:12:14,341 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:12:14,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 173 events. 2/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 149 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 148. Up to 12 conditions per place. [2022-11-18 20:12:14,342 INFO L137 encePairwiseOnDemand]: 220/224 looper letters, 13 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-18 20:12:14,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 173 transitions, 386 flow [2022-11-18 20:12:14,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:12:14,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:12:14,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 789 transitions. [2022-11-18 20:12:14,345 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8805803571428571 [2022-11-18 20:12:14,345 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 789 transitions. [2022-11-18 20:12:14,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 789 transitions. [2022-11-18 20:12:14,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:14,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 789 transitions. [2022-11-18 20:12:14,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.25) internal successors, (789), 4 states have internal predecessors, (789), 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) [2022-11-18 20:12:14,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:14,351 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 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) [2022-11-18 20:12:14,351 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 360 flow. Second operand 4 states and 789 transitions. [2022-11-18 20:12:14,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 173 transitions, 386 flow [2022-11-18 20:12:14,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 173 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:12:14,354 INFO L231 Difference]: Finished difference. Result has 182 places, 173 transitions, 357 flow [2022-11-18 20:12:14,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=182, PETRI_TRANSITIONS=173} [2022-11-18 20:12:14,357 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -32 predicate places. [2022-11-18 20:12:14,357 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 173 transitions, 357 flow [2022-11-18 20:12:14,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 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) [2022-11-18 20:12:14,358 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:14,358 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:14,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:12:14,359 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:14,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1937411836, now seen corresponding path program 1 times [2022-11-18 20:12:14,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:14,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381273336] [2022-11-18 20:12:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:14,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:14,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:14,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381273336] [2022-11-18 20:12:14,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381273336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:14,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:14,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:12:14,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655460734] [2022-11-18 20:12:14,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:14,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:12:14,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:14,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:12:14,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:12:14,468 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 224 [2022-11-18 20:12:14,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 173 transitions, 357 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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) [2022-11-18 20:12:14,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:14,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 224 [2022-11-18 20:12:14,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:14,553 INFO L130 PetriNetUnfolder]: 1/172 cut-off events. [2022-11-18 20:12:14,553 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:12:14,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 172 events. 1/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 140 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 151. Up to 11 conditions per place. [2022-11-18 20:12:14,554 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 0/172 dead transitions. [2022-11-18 20:12:14,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 172 transitions, 391 flow [2022-11-18 20:12:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:12:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:12:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 964 transitions. [2022-11-18 20:12:14,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8607142857142858 [2022-11-18 20:12:14,557 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 964 transitions. [2022-11-18 20:12:14,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 964 transitions. [2022-11-18 20:12:14,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:14,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 964 transitions. [2022-11-18 20:12:14,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 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) [2022-11-18 20:12:14,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:14,563 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:14,563 INFO L175 Difference]: Start difference. First operand has 182 places, 173 transitions, 357 flow. Second operand 5 states and 964 transitions. [2022-11-18 20:12:14,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 172 transitions, 391 flow [2022-11-18 20:12:14,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 172 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:12:14,567 INFO L231 Difference]: Finished difference. Result has 184 places, 172 transitions, 360 flow [2022-11-18 20:12:14,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=360, PETRI_PLACES=184, PETRI_TRANSITIONS=172} [2022-11-18 20:12:14,568 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -30 predicate places. [2022-11-18 20:12:14,568 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 172 transitions, 360 flow [2022-11-18 20:12:14,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 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) [2022-11-18 20:12:14,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:14,569 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:14,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:12:14,569 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1891920501, now seen corresponding path program 1 times [2022-11-18 20:12:14,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:14,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000314193] [2022-11-18 20:12:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:14,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:14,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:14,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000314193] [2022-11-18 20:12:14,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000314193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:14,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:14,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:12:14,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497917917] [2022-11-18 20:12:14,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:14,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:12:14,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:14,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:12:14,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:12:14,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 224 [2022-11-18 20:12:14,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 172 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 185.42857142857142) internal successors, (1298), 7 states have internal predecessors, (1298), 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) [2022-11-18 20:12:14,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:14,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 224 [2022-11-18 20:12:14,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:15,076 INFO L130 PetriNetUnfolder]: 20/541 cut-off events. [2022-11-18 20:12:15,077 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:12:15,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 541 events. 20/541 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2490 event pairs, 0 based on Foata normal form. 0/524 useless extension candidates. Maximal degree in co-relation 612. Up to 24 conditions per place. [2022-11-18 20:12:15,081 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 49 selfloop transitions, 13 changer transitions 0/211 dead transitions. [2022-11-18 20:12:15,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 211 transitions, 582 flow [2022-11-18 20:12:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:12:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:12:15,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2077 transitions. [2022-11-18 20:12:15,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8429383116883117 [2022-11-18 20:12:15,088 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2077 transitions. [2022-11-18 20:12:15,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2077 transitions. [2022-11-18 20:12:15,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:15,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2077 transitions. [2022-11-18 20:12:15,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 188.8181818181818) internal successors, (2077), 11 states have internal predecessors, (2077), 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) [2022-11-18 20:12:15,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 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) [2022-11-18 20:12:15,104 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 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) [2022-11-18 20:12:15,104 INFO L175 Difference]: Start difference. First operand has 184 places, 172 transitions, 360 flow. Second operand 11 states and 2077 transitions. [2022-11-18 20:12:15,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 211 transitions, 582 flow [2022-11-18 20:12:15,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 211 transitions, 558 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:12:15,110 INFO L231 Difference]: Finished difference. Result has 193 places, 183 transitions, 423 flow [2022-11-18 20:12:15,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=423, PETRI_PLACES=193, PETRI_TRANSITIONS=183} [2022-11-18 20:12:15,111 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -21 predicate places. [2022-11-18 20:12:15,112 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 183 transitions, 423 flow [2022-11-18 20:12:15,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 185.42857142857142) internal successors, (1298), 7 states have internal predecessors, (1298), 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) [2022-11-18 20:12:15,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:15,113 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:15,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:12:15,114 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:15,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:15,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1480007232, now seen corresponding path program 1 times [2022-11-18 20:12:15,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:15,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935040816] [2022-11-18 20:12:15,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:15,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:15,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:15,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935040816] [2022-11-18 20:12:15,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935040816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:15,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:15,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:12:15,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683196937] [2022-11-18 20:12:15,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:15,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:12:15,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:12:15,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:12:15,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 224 [2022-11-18 20:12:15,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 183 transitions, 423 flow. Second operand has 7 states, 7 states have (on average 185.57142857142858) internal successors, (1299), 7 states have internal predecessors, (1299), 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) [2022-11-18 20:12:15,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:15,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 224 [2022-11-18 20:12:15,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:15,576 INFO L130 PetriNetUnfolder]: 19/538 cut-off events. [2022-11-18 20:12:15,576 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-18 20:12:15,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 538 events. 19/538 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2463 event pairs, 0 based on Foata normal form. 2/524 useless extension candidates. Maximal degree in co-relation 638. Up to 24 conditions per place. [2022-11-18 20:12:15,580 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 23 selfloop transitions, 2 changer transitions 36/210 dead transitions. [2022-11-18 20:12:15,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 210 transitions, 603 flow [2022-11-18 20:12:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:12:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:12:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2075 transitions. [2022-11-18 20:12:15,585 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8421266233766234 [2022-11-18 20:12:15,586 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2075 transitions. [2022-11-18 20:12:15,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2075 transitions. [2022-11-18 20:12:15,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:15,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2075 transitions. [2022-11-18 20:12:15,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 188.63636363636363) internal successors, (2075), 11 states have internal predecessors, (2075), 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) [2022-11-18 20:12:15,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 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) [2022-11-18 20:12:15,600 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 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) [2022-11-18 20:12:15,600 INFO L175 Difference]: Start difference. First operand has 193 places, 183 transitions, 423 flow. Second operand 11 states and 2075 transitions. [2022-11-18 20:12:15,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 210 transitions, 603 flow [2022-11-18 20:12:15,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 210 transitions, 603 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:12:15,606 INFO L231 Difference]: Finished difference. Result has 207 places, 172 transitions, 382 flow [2022-11-18 20:12:15,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=382, PETRI_PLACES=207, PETRI_TRANSITIONS=172} [2022-11-18 20:12:15,607 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -7 predicate places. [2022-11-18 20:12:15,607 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 172 transitions, 382 flow [2022-11-18 20:12:15,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 185.57142857142858) internal successors, (1299), 7 states have internal predecessors, (1299), 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) [2022-11-18 20:12:15,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:15,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:15,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:12:15,610 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:15,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:15,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1067891195, now seen corresponding path program 1 times [2022-11-18 20:12:15,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:15,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973327305] [2022-11-18 20:12:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:15,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:15,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:15,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973327305] [2022-11-18 20:12:15,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973327305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:15,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:15,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:12:15,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129644126] [2022-11-18 20:12:15,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:15,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:12:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:15,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:12:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:15,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 224 [2022-11-18 20:12:15,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 172 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 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) [2022-11-18 20:12:15,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:15,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 224 [2022-11-18 20:12:15,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:16,097 INFO L130 PetriNetUnfolder]: 24/367 cut-off events. [2022-11-18 20:12:16,097 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 20:12:16,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 367 events. 24/367 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1023 event pairs, 10 based on Foata normal form. 5/362 useless extension candidates. Maximal degree in co-relation 475. Up to 47 conditions per place. [2022-11-18 20:12:16,100 INFO L137 encePairwiseOnDemand]: 215/224 looper letters, 22 selfloop transitions, 9 changer transitions 1/179 dead transitions. [2022-11-18 20:12:16,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 179 transitions, 460 flow [2022-11-18 20:12:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:12:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:12:16,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 970 transitions. [2022-11-18 20:12:16,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8660714285714286 [2022-11-18 20:12:16,104 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 970 transitions. [2022-11-18 20:12:16,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 970 transitions. [2022-11-18 20:12:16,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:16,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 970 transitions. [2022-11-18 20:12:16,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 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) [2022-11-18 20:12:16,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:16,111 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:16,112 INFO L175 Difference]: Start difference. First operand has 207 places, 172 transitions, 382 flow. Second operand 5 states and 970 transitions. [2022-11-18 20:12:16,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 179 transitions, 460 flow [2022-11-18 20:12:16,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 179 transitions, 434 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-18 20:12:16,117 INFO L231 Difference]: Finished difference. Result has 186 places, 174 transitions, 389 flow [2022-11-18 20:12:16,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=186, PETRI_TRANSITIONS=174} [2022-11-18 20:12:16,118 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -28 predicate places. [2022-11-18 20:12:16,119 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 174 transitions, 389 flow [2022-11-18 20:12:16,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 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) [2022-11-18 20:12:16,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:16,120 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:16,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:12:16,120 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:16,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:16,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1934993252, now seen corresponding path program 1 times [2022-11-18 20:12:16,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:16,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296326150] [2022-11-18 20:12:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:16,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:16,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:16,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296326150] [2022-11-18 20:12:16,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296326150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:16,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:16,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:12:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7904572] [2022-11-18 20:12:16,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:16,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:12:16,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:16,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:12:16,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:16,630 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 224 [2022-11-18 20:12:16,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 174 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 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) [2022-11-18 20:12:16,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:16,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 224 [2022-11-18 20:12:16,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:16,807 INFO L130 PetriNetUnfolder]: 21/360 cut-off events. [2022-11-18 20:12:16,808 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-18 20:12:16,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 360 events. 21/360 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 953 event pairs, 7 based on Foata normal form. 2/351 useless extension candidates. Maximal degree in co-relation 423. Up to 38 conditions per place. [2022-11-18 20:12:16,810 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 24 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2022-11-18 20:12:16,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 180 transitions, 475 flow [2022-11-18 20:12:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:12:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:12:16,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2022-11-18 20:12:16,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8625 [2022-11-18 20:12:16,814 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2022-11-18 20:12:16,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2022-11-18 20:12:16,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:16,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2022-11-18 20:12:16,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 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) [2022-11-18 20:12:16,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:16,821 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 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) [2022-11-18 20:12:16,821 INFO L175 Difference]: Start difference. First operand has 186 places, 174 transitions, 389 flow. Second operand 5 states and 966 transitions. [2022-11-18 20:12:16,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 180 transitions, 475 flow [2022-11-18 20:12:16,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 180 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:12:16,826 INFO L231 Difference]: Finished difference. Result has 189 places, 177 transitions, 428 flow [2022-11-18 20:12:16,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=428, PETRI_PLACES=189, PETRI_TRANSITIONS=177} [2022-11-18 20:12:16,828 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -25 predicate places. [2022-11-18 20:12:16,828 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 177 transitions, 428 flow [2022-11-18 20:12:16,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 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) [2022-11-18 20:12:16,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:16,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:16,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:12:16,830 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:16,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1868475625, now seen corresponding path program 1 times [2022-11-18 20:12:16,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:16,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190598721] [2022-11-18 20:12:16,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:16,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:17,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:17,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190598721] [2022-11-18 20:12:17,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190598721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:17,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:17,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:12:17,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017464164] [2022-11-18 20:12:17,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:17,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:12:17,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:17,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:12:17,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:12:17,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 224 [2022-11-18 20:12:17,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 177 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 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) [2022-11-18 20:12:17,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:17,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 224 [2022-11-18 20:12:17,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:17,195 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2022-11-18 20:12:17,195 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 20:12:17,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 254 events. 6/254 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 437 event pairs, 1 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 290. Up to 14 conditions per place. [2022-11-18 20:12:17,196 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 20 selfloop transitions, 4 changer transitions 2/176 dead transitions. [2022-11-18 20:12:17,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 176 transitions, 474 flow [2022-11-18 20:12:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:12:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:12:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1105 transitions. [2022-11-18 20:12:17,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8221726190476191 [2022-11-18 20:12:17,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1105 transitions. [2022-11-18 20:12:17,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1105 transitions. [2022-11-18 20:12:17,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:17,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1105 transitions. [2022-11-18 20:12:17,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 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) [2022-11-18 20:12:17,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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) [2022-11-18 20:12:17,207 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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) [2022-11-18 20:12:17,207 INFO L175 Difference]: Start difference. First operand has 189 places, 177 transitions, 428 flow. Second operand 6 states and 1105 transitions. [2022-11-18 20:12:17,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 176 transitions, 474 flow [2022-11-18 20:12:17,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 176 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:12:17,211 INFO L231 Difference]: Finished difference. Result has 191 places, 174 transitions, 427 flow [2022-11-18 20:12:17,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=191, PETRI_TRANSITIONS=174} [2022-11-18 20:12:17,212 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -23 predicate places. [2022-11-18 20:12:17,213 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 174 transitions, 427 flow [2022-11-18 20:12:17,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 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) [2022-11-18 20:12:17,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:17,214 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:17,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:12:17,214 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 20:12:17,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:17,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1740038166, now seen corresponding path program 1 times [2022-11-18 20:12:17,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:17,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145748519] [2022-11-18 20:12:17,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:17,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:17,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:17,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145748519] [2022-11-18 20:12:17,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145748519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:17,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:17,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:12:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654178393] [2022-11-18 20:12:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:17,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:12:17,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:17,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:12:17,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:12:17,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 224 [2022-11-18 20:12:17,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 174 transitions, 427 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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) [2022-11-18 20:12:17,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:17,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 224 [2022-11-18 20:12:17,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:17,682 INFO L130 PetriNetUnfolder]: 12/290 cut-off events. [2022-11-18 20:12:17,682 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-18 20:12:17,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 290 events. 12/290 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 590 event pairs, 7 based on Foata normal form. 1/284 useless extension candidates. Maximal degree in co-relation 383. Up to 19 conditions per place. [2022-11-18 20:12:17,684 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 0 selfloop transitions, 0 changer transitions 173/173 dead transitions. [2022-11-18 20:12:17,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 173 transitions, 483 flow [2022-11-18 20:12:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:12:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:12:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1587 transitions. [2022-11-18 20:12:17,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7872023809523809 [2022-11-18 20:12:17,689 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1587 transitions. [2022-11-18 20:12:17,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1587 transitions. [2022-11-18 20:12:17,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:17,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1587 transitions. [2022-11-18 20:12:17,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.33333333333334) internal successors, (1587), 9 states have internal predecessors, (1587), 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) [2022-11-18 20:12:17,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 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) [2022-11-18 20:12:17,699 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 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) [2022-11-18 20:12:17,699 INFO L175 Difference]: Start difference. First operand has 191 places, 174 transitions, 427 flow. Second operand 9 states and 1587 transitions. [2022-11-18 20:12:17,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 173 transitions, 483 flow [2022-11-18 20:12:17,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 173 transitions, 476 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:12:17,703 INFO L231 Difference]: Finished difference. Result has 192 places, 0 transitions, 0 flow [2022-11-18 20:12:17,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=192, PETRI_TRANSITIONS=0} [2022-11-18 20:12:17,704 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -22 predicate places. [2022-11-18 20:12:17,705 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 0 transitions, 0 flow [2022-11-18 20:12:17,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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) [2022-11-18 20:12:17,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2022-11-18 20:12:17,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-11-18 20:12:17,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-11-18 20:12:17,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-11-18 20:12:17,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-11-18 20:12:17,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-11-18 20:12:17,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2022-11-18 20:12:17,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-11-18 20:12:17,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-11-18 20:12:17,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-11-18 20:12:17,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-11-18 20:12:17,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-11-18 20:12:17,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-11-18 20:12:17,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-11-18 20:12:17,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-11-18 20:12:17,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-11-18 20:12:17,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-11-18 20:12:17,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-11-18 20:12:17,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-11-18 20:12:17,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:12:17,714 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:17,721 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:12:17,721 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:12:17,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:12:17 BasicIcfg [2022-11-18 20:12:17,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:12:17,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:12:17,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:12:17,728 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:12:17,729 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:10" (3/4) ... [2022-11-18 20:12:17,732 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:12:17,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 20:12:17,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-18 20:12:17,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:12:17,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:12:17,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:12:17,787 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:12:17,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:12:17,789 INFO L158 Benchmark]: Toolchain (without parser) took 8861.41ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 61.7MB in the beginning and 107.8MB in the end (delta: -46.0MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,789 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:12:17,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.94ms. Allocated memory is still 107.0MB. Free memory was 61.5MB in the beginning and 71.0MB in the end (delta: -9.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.20ms. Allocated memory is still 107.0MB. Free memory was 71.0MB in the beginning and 68.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,790 INFO L158 Benchmark]: Boogie Preprocessor took 58.40ms. Allocated memory is still 107.0MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,791 INFO L158 Benchmark]: RCFGBuilder took 716.71ms. Allocated memory is still 107.0MB. Free memory was 66.8MB in the beginning and 46.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,791 INFO L158 Benchmark]: TraceAbstraction took 7142.45ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 46.2MB in the beginning and 110.9MB in the end (delta: -64.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,791 INFO L158 Benchmark]: Witness Printer took 60.15ms. Allocated memory is still 195.0MB. Free memory was 110.9MB in the beginning and 107.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:12:17,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.94ms. Allocated memory is still 107.0MB. Free memory was 61.5MB in the beginning and 71.0MB in the end (delta: -9.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.20ms. Allocated memory is still 107.0MB. Free memory was 71.0MB in the beginning and 68.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.40ms. Allocated memory is still 107.0MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.71ms. Allocated memory is still 107.0MB. Free memory was 66.8MB in the beginning and 46.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7142.45ms. Allocated memory was 107.0MB in the beginning and 195.0MB in the end (delta: 88.1MB). Free memory was 46.2MB in the beginning and 110.9MB in the end (delta: -64.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Witness Printer took 60.15ms. Allocated memory is still 195.0MB. Free memory was 110.9MB in the beginning and 107.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 309 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 657 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 657 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 635 IncrementalHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 114 mSDtfsCounter, 635 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=2, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1490 NumberOfCodeBlocks, 1490 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1475 ConstructedInterpolants, 0 QuantifiedInterpolants, 3914 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:12:17,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6134633-4f42-471a-8e64-536661b5cc78/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE