./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c --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_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/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_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/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_930475b3-34ac-46b3-9add-476013ed683f/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 f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 --- 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 19:31:25,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:31:25,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:31:25,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:31:25,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:31:25,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:31:25,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:31:25,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:31:25,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:31:25,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:31:25,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:31:25,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:31:25,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:31:25,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:31:25,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:31:25,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:31:25,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:31:25,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:31:25,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:31:25,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:31:25,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:31:25,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:31:25,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:31:25,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:31:25,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:31:25,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:31:25,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:31:25,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:31:25,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:31:25,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:31:25,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:31:25,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:31:25,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:31:25,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:31:25,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:31:25,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:31:25,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:31:25,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:31:25,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:31:25,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:31:25,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:31:25,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:31:25,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:31:25,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:31:25,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:31:25,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:31:25,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:31:25,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:31:25,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:31:25,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:31:25,503 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:31:25,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:31:25,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:31:25,505 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:31:25,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:31:25,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:31:25,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:31:25,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:31:25,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:31:25,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:31:25,507 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:31:25,507 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:31:25,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:31:25,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:31:25,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:31:25,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:31:25,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:31:25,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:31:25,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:31:25,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:31:25,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:31:25,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:31:25,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:31:25,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:31:25,512 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:31:25,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:31:25,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:31:25,512 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_930475b3-34ac-46b3-9add-476013ed683f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2d05599d6fce1204a0d86fe3e19cae407be0ec265e139da4f0fd53a7d101655 [2022-11-18 19:31:25,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:31:25,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:31:25,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:31:25,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:31:25,867 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:31:25,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2022-11-18 19:31:25,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/data/2543ee833/2c54859698ca4ea68340a5252da346b7/FLAG2685b3390 [2022-11-18 19:31:26,429 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:31:26,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2022-11-18 19:31:26,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/data/2543ee833/2c54859698ca4ea68340a5252da346b7/FLAG2685b3390 [2022-11-18 19:31:26,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/data/2543ee833/2c54859698ca4ea68340a5252da346b7 [2022-11-18 19:31:26,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:31:26,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:31:26,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:31:26,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:31:26,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:31:26,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:31:26" (1/1) ... [2022-11-18 19:31:26,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66067793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:26, skipping insertion in model container [2022-11-18 19:31:26,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:31:26" (1/1) ... [2022-11-18 19:31:26,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:31:26,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:31:27,047 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_930475b3-34ac-46b3-9add-476013ed683f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2022-11-18 19:31:27,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:31:27,065 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:31:27,088 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_930475b3-34ac-46b3-9add-476013ed683f/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2836,2849] [2022-11-18 19:31:27,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:31:27,104 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:31:27,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27 WrapperNode [2022-11-18 19:31:27,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:31:27,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:31:27,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:31:27,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:31:27,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,153 INFO L138 Inliner]: procedures = 23, calls = 39, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 298 [2022-11-18 19:31:27,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:31:27,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:31:27,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:31:27,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:31:27,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:31:27,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:31:27,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:31:27,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:31:27,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (1/1) ... [2022-11-18 19:31:27,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:31:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:31:27,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:31:27,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:31:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:31:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:31:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:31:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:31:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:31:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:31:27,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:31:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:31:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:31:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:31:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:31:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:31:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:31:27,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:31:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:31:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:31:27,302 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 19:31:27,442 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:31:27,445 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:31:28,160 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:31:29,727 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:31:29,728 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:31:29,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:29 BoogieIcfgContainer [2022-11-18 19:31:29,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:31:29,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:31:29,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:31:29,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:31:29,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:31:26" (1/3) ... [2022-11-18 19:31:29,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e107931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:31:29, skipping insertion in model container [2022-11-18 19:31:29,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:27" (2/3) ... [2022-11-18 19:31:29,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e107931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:31:29, skipping insertion in model container [2022-11-18 19:31:29,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:29" (3/3) ... [2022-11-18 19:31:29,746 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2022-11-18 19:31:29,759 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:31:29,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:31:29,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-18 19:31:29,773 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:31:30,330 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 19:31:30,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 145 transitions, 314 flow [2022-11-18 19:31:30,529 INFO L130 PetriNetUnfolder]: 1/142 cut-off events. [2022-11-18 19:31:30,529 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:31:30,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 1/142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 213 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-18 19:31:30,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 145 transitions, 314 flow [2022-11-18 19:31:30,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 121 transitions, 257 flow [2022-11-18 19:31:30,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:31:30,571 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;@79c2dd9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:31:30,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2022-11-18 19:31:30,595 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-18 19:31:30,596 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:31:30,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:30,597 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] [2022-11-18 19:31:30,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671693, now seen corresponding path program 1 times [2022-11-18 19:31:30,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:30,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527567647] [2022-11-18 19:31:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:30,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:31,128 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 19:31:31,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:31,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527567647] [2022-11-18 19:31:31,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527567647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:31,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:31,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:31,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904247313] [2022-11-18 19:31:31,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:31,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:31,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:31,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:31,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 121 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:31,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:31,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:31,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:34,233 INFO L130 PetriNetUnfolder]: 1682/2979 cut-off events. [2022-11-18 19:31:34,234 INFO L131 PetriNetUnfolder]: For 1111/1831 co-relation queries the response was YES. [2022-11-18 19:31:34,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 2979 events. 1682/2979 cut-off events. For 1111/1831 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 19586 event pairs, 1682 based on Foata normal form. 0/602 useless extension candidates. Maximal degree in co-relation 5774. Up to 2685 conditions per place. [2022-11-18 19:31:34,270 INFO L137 encePairwiseOnDemand]: 128/145 looper letters, 32 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2022-11-18 19:31:34,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 107 transitions, 299 flow [2022-11-18 19:31:34,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2022-11-18 19:31:34,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7258620689655172 [2022-11-18 19:31:34,287 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 421 transitions. [2022-11-18 19:31:34,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 421 transitions. [2022-11-18 19:31:34,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:34,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 421 transitions. [2022-11-18 19:31:34,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 19:31:34,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:34,302 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:34,304 INFO L175 Difference]: Start difference. First operand has 131 places, 121 transitions, 257 flow. Second operand 4 states and 421 transitions. [2022-11-18 19:31:34,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 107 transitions, 299 flow [2022-11-18 19:31:34,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 107 transitions, 290 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:31:34,312 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 226 flow [2022-11-18 19:31:34,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2022-11-18 19:31:34,318 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -16 predicate places. [2022-11-18 19:31:34,318 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 226 flow [2022-11-18 19:31:34,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:34,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:34,319 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] [2022-11-18 19:31:34,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:31:34,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:34,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671703, now seen corresponding path program 1 times [2022-11-18 19:31:34,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:34,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363635387] [2022-11-18 19:31:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:34,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:35,101 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 19:31:35,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:35,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363635387] [2022-11-18 19:31:35,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363635387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:35,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:35,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:35,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760087974] [2022-11-18 19:31:35,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:35,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:35,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:35,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:35,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:35,117 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:35,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:35,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:35,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:35,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:37,042 INFO L130 PetriNetUnfolder]: 1358/2451 cut-off events. [2022-11-18 19:31:37,042 INFO L131 PetriNetUnfolder]: For 90/657 co-relation queries the response was YES. [2022-11-18 19:31:37,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4791 conditions, 2451 events. 1358/2451 cut-off events. For 90/657 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 15811 event pairs, 1358 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 4753. Up to 2179 conditions per place. [2022-11-18 19:31:37,058 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 30 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2022-11-18 19:31:37,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 105 transitions, 288 flow [2022-11-18 19:31:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2022-11-18 19:31:37,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7017241379310345 [2022-11-18 19:31:37,062 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 407 transitions. [2022-11-18 19:31:37,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 407 transitions. [2022-11-18 19:31:37,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:37,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 407 transitions. [2022-11-18 19:31:37,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 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 19:31:37,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:37,067 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:37,067 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 226 flow. Second operand 4 states and 407 transitions. [2022-11-18 19:31:37,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 105 transitions, 288 flow [2022-11-18 19:31:37,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 105 transitions, 282 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:37,069 INFO L231 Difference]: Finished difference. Result has 113 places, 105 transitions, 222 flow [2022-11-18 19:31:37,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=113, PETRI_TRANSITIONS=105} [2022-11-18 19:31:37,071 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -18 predicate places. [2022-11-18 19:31:37,071 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 222 flow [2022-11-18 19:31:37,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:37,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:37,072 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] [2022-11-18 19:31:37,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:31:37,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671704, now seen corresponding path program 1 times [2022-11-18 19:31:37,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:37,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860871163] [2022-11-18 19:31:37,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:37,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:37,425 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 19:31:37,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:37,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860871163] [2022-11-18 19:31:37,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860871163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:37,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:37,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:37,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519785444] [2022-11-18 19:31:37,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:37,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:37,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:37,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:37,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:37,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:37,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:37,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:37,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:38,983 INFO L130 PetriNetUnfolder]: 1068/1975 cut-off events. [2022-11-18 19:31:38,984 INFO L131 PetriNetUnfolder]: For 82/514 co-relation queries the response was YES. [2022-11-18 19:31:38,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3842 conditions, 1975 events. 1068/1975 cut-off events. For 82/514 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 12330 event pairs, 1068 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 3795. Up to 1725 conditions per place. [2022-11-18 19:31:38,998 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 28 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2022-11-18 19:31:38,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 103 transitions, 280 flow [2022-11-18 19:31:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:39,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 405 transitions. [2022-11-18 19:31:39,001 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6982758620689655 [2022-11-18 19:31:39,001 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 405 transitions. [2022-11-18 19:31:39,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 405 transitions. [2022-11-18 19:31:39,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:39,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 405 transitions. [2022-11-18 19:31:39,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 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 19:31:39,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:39,005 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:39,006 INFO L175 Difference]: Start difference. First operand has 113 places, 105 transitions, 222 flow. Second operand 4 states and 405 transitions. [2022-11-18 19:31:39,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 103 transitions, 280 flow [2022-11-18 19:31:39,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 103 transitions, 274 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:39,009 INFO L231 Difference]: Finished difference. Result has 111 places, 103 transitions, 218 flow [2022-11-18 19:31:39,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=111, PETRI_TRANSITIONS=103} [2022-11-18 19:31:39,010 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -20 predicate places. [2022-11-18 19:31:39,010 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 103 transitions, 218 flow [2022-11-18 19:31:39,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:39,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:39,011 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] [2022-11-18 19:31:39,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:31:39,012 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:39,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:39,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671696, now seen corresponding path program 1 times [2022-11-18 19:31:39,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:39,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852396718] [2022-11-18 19:31:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:39,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:39,100 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 19:31:39,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:39,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852396718] [2022-11-18 19:31:39,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852396718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:39,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:39,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:39,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845897936] [2022-11-18 19:31:39,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:39,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:39,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:39,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:39,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:39,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:39,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 103 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:39,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:39,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:39,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:40,368 INFO L130 PetriNetUnfolder]: 815/1542 cut-off events. [2022-11-18 19:31:40,368 INFO L131 PetriNetUnfolder]: For 72/392 co-relation queries the response was YES. [2022-11-18 19:31:40,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1542 events. 815/1542 cut-off events. For 72/392 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 9175 event pairs, 815 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 2934. Up to 1328 conditions per place. [2022-11-18 19:31:40,379 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 26 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2022-11-18 19:31:40,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 101 transitions, 272 flow [2022-11-18 19:31:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:40,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:40,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2022-11-18 19:31:40,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6948275862068966 [2022-11-18 19:31:40,381 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 403 transitions. [2022-11-18 19:31:40,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 403 transitions. [2022-11-18 19:31:40,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:40,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 403 transitions. [2022-11-18 19:31:40,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 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 19:31:40,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:40,385 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:40,385 INFO L175 Difference]: Start difference. First operand has 111 places, 103 transitions, 218 flow. Second operand 4 states and 403 transitions. [2022-11-18 19:31:40,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 101 transitions, 272 flow [2022-11-18 19:31:40,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 101 transitions, 266 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:40,387 INFO L231 Difference]: Finished difference. Result has 109 places, 101 transitions, 214 flow [2022-11-18 19:31:40,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=109, PETRI_TRANSITIONS=101} [2022-11-18 19:31:40,388 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -22 predicate places. [2022-11-18 19:31:40,388 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 101 transitions, 214 flow [2022-11-18 19:31:40,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:40,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:40,389 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] [2022-11-18 19:31:40,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:31:40,389 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:40,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671697, now seen corresponding path program 1 times [2022-11-18 19:31:40,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:40,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128796084] [2022-11-18 19:31:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:40,527 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 19:31:40,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:40,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128796084] [2022-11-18 19:31:40,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128796084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:40,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:40,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131345838] [2022-11-18 19:31:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:40,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:40,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:40,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:40,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 101 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:40,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:40,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:40,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:41,625 INFO L130 PetriNetUnfolder]: 604/1189 cut-off events. [2022-11-18 19:31:41,625 INFO L131 PetriNetUnfolder]: For 63/287 co-relation queries the response was YES. [2022-11-18 19:31:41,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 1189 events. 604/1189 cut-off events. For 63/287 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 6774 event pairs, 604 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 2237. Up to 995 conditions per place. [2022-11-18 19:31:41,634 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 24 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2022-11-18 19:31:41,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 99 transitions, 264 flow [2022-11-18 19:31:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2022-11-18 19:31:41,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913793103448276 [2022-11-18 19:31:41,637 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2022-11-18 19:31:41,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2022-11-18 19:31:41,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:41,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2022-11-18 19:31:41,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 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 19:31:41,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:41,641 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:41,641 INFO L175 Difference]: Start difference. First operand has 109 places, 101 transitions, 214 flow. Second operand 4 states and 401 transitions. [2022-11-18 19:31:41,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 99 transitions, 264 flow [2022-11-18 19:31:41,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 99 transitions, 258 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:41,644 INFO L231 Difference]: Finished difference. Result has 107 places, 99 transitions, 210 flow [2022-11-18 19:31:41,644 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=107, PETRI_TRANSITIONS=99} [2022-11-18 19:31:41,645 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -24 predicate places. [2022-11-18 19:31:41,645 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 99 transitions, 210 flow [2022-11-18 19:31:41,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:41,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:41,646 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] [2022-11-18 19:31:41,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:31:41,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:41,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:41,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671698, now seen corresponding path program 1 times [2022-11-18 19:31:41,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:41,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591088737] [2022-11-18 19:31:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:41,773 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 19:31:41,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:41,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591088737] [2022-11-18 19:31:41,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591088737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:41,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:41,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:41,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248408743] [2022-11-18 19:31:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:41,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:41,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:41,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:41,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:41,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 99 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:41,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:41,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:41,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:42,535 INFO L130 PetriNetUnfolder]: 423/882 cut-off events. [2022-11-18 19:31:42,535 INFO L131 PetriNetUnfolder]: For 56/200 co-relation queries the response was YES. [2022-11-18 19:31:42,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 882 events. 423/882 cut-off events. For 56/200 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 4753 event pairs, 423 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 1629. Up to 708 conditions per place. [2022-11-18 19:31:42,541 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 22 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2022-11-18 19:31:42,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 97 transitions, 256 flow [2022-11-18 19:31:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2022-11-18 19:31:42,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6879310344827586 [2022-11-18 19:31:42,548 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2022-11-18 19:31:42,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2022-11-18 19:31:42,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:42,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2022-11-18 19:31:42,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 19:31:42,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:42,551 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:42,552 INFO L175 Difference]: Start difference. First operand has 107 places, 99 transitions, 210 flow. Second operand 4 states and 399 transitions. [2022-11-18 19:31:42,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 97 transitions, 256 flow [2022-11-18 19:31:42,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 97 transitions, 250 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:42,556 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 206 flow [2022-11-18 19:31:42,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2022-11-18 19:31:42,559 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -26 predicate places. [2022-11-18 19:31:42,559 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 206 flow [2022-11-18 19:31:42,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:42,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:42,560 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] [2022-11-18 19:31:42,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:31:42,560 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671699, now seen corresponding path program 1 times [2022-11-18 19:31:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:42,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969250565] [2022-11-18 19:31:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:42,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:42,685 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 19:31:42,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:42,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969250565] [2022-11-18 19:31:42,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969250565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:42,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:42,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:42,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987802590] [2022-11-18 19:31:42,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:42,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:42,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:42,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:42,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:42,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:42,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:42,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:42,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:42,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:43,165 INFO L130 PetriNetUnfolder]: 282/629 cut-off events. [2022-11-18 19:31:43,165 INFO L131 PetriNetUnfolder]: For 48/132 co-relation queries the response was YES. [2022-11-18 19:31:43,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 629 events. 282/629 cut-off events. For 48/132 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 3071 event pairs, 282 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 1131. Up to 483 conditions per place. [2022-11-18 19:31:43,169 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 20 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2022-11-18 19:31:43,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 95 transitions, 248 flow [2022-11-18 19:31:43,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2022-11-18 19:31:43,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6844827586206896 [2022-11-18 19:31:43,172 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 397 transitions. [2022-11-18 19:31:43,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 397 transitions. [2022-11-18 19:31:43,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:43,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 397 transitions. [2022-11-18 19:31:43,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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 19:31:43,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:43,176 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:43,176 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 206 flow. Second operand 4 states and 397 transitions. [2022-11-18 19:31:43,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 95 transitions, 248 flow [2022-11-18 19:31:43,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 95 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:43,178 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 202 flow [2022-11-18 19:31:43,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2022-11-18 19:31:43,179 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -28 predicate places. [2022-11-18 19:31:43,179 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 202 flow [2022-11-18 19:31:43,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:43,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:43,180 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] [2022-11-18 19:31:43,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:31:43,180 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1342671702, now seen corresponding path program 1 times [2022-11-18 19:31:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:43,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372658025] [2022-11-18 19:31:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:43,356 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 19:31:43,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:43,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372658025] [2022-11-18 19:31:43,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372658025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:43,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:43,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043821246] [2022-11-18 19:31:43,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:43,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:43,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:43,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:43,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:43,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:43,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:43,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:43,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:43,717 INFO L130 PetriNetUnfolder]: 167/420 cut-off events. [2022-11-18 19:31:43,717 INFO L131 PetriNetUnfolder]: For 44/80 co-relation queries the response was YES. [2022-11-18 19:31:43,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 420 events. 167/420 cut-off events. For 44/80 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1800 event pairs, 167 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 703. Up to 298 conditions per place. [2022-11-18 19:31:43,720 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 18 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2022-11-18 19:31:43,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 240 flow [2022-11-18 19:31:43,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:43,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2022-11-18 19:31:43,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6810344827586207 [2022-11-18 19:31:43,723 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 395 transitions. [2022-11-18 19:31:43,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 395 transitions. [2022-11-18 19:31:43,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:43,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 395 transitions. [2022-11-18 19:31:43,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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 19:31:43,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:43,730 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:43,730 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 202 flow. Second operand 4 states and 395 transitions. [2022-11-18 19:31:43,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 240 flow [2022-11-18 19:31:43,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 93 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:43,733 INFO L231 Difference]: Finished difference. Result has 101 places, 93 transitions, 198 flow [2022-11-18 19:31:43,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=101, PETRI_TRANSITIONS=93} [2022-11-18 19:31:43,737 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -30 predicate places. [2022-11-18 19:31:43,737 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 93 transitions, 198 flow [2022-11-18 19:31:43,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 19:31:43,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:43,738 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 19:31:43,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:31:43,738 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:43,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161368, now seen corresponding path program 1 times [2022-11-18 19:31:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:43,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276675643] [2022-11-18 19:31:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:43,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:43,849 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 19:31:43,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:43,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276675643] [2022-11-18 19:31:43,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276675643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:43,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:43,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:43,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356864998] [2022-11-18 19:31:43,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:43,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:43,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:43,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:43,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:43,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:43,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 93 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:43,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:43,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:43,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:44,142 INFO L130 PetriNetUnfolder]: 114/325 cut-off events. [2022-11-18 19:31:44,143 INFO L131 PetriNetUnfolder]: For 30/55 co-relation queries the response was YES. [2022-11-18 19:31:44,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 325 events. 114/325 cut-off events. For 30/55 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1243 event pairs, 114 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 515. Up to 209 conditions per place. [2022-11-18 19:31:44,145 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 16 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2022-11-18 19:31:44,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 91 transitions, 232 flow [2022-11-18 19:31:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 393 transitions. [2022-11-18 19:31:44,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6775862068965517 [2022-11-18 19:31:44,147 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 393 transitions. [2022-11-18 19:31:44,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 393 transitions. [2022-11-18 19:31:44,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:44,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 393 transitions. [2022-11-18 19:31:44,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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 19:31:44,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:44,150 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:44,150 INFO L175 Difference]: Start difference. First operand has 101 places, 93 transitions, 198 flow. Second operand 4 states and 393 transitions. [2022-11-18 19:31:44,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 91 transitions, 232 flow [2022-11-18 19:31:44,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 91 transitions, 226 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:44,153 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 194 flow [2022-11-18 19:31:44,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2022-11-18 19:31:44,154 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -32 predicate places. [2022-11-18 19:31:44,154 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 194 flow [2022-11-18 19:31:44,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:44,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:44,154 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 19:31:44,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:31:44,155 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:44,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161371, now seen corresponding path program 1 times [2022-11-18 19:31:44,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:44,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926988223] [2022-11-18 19:31:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:44,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:44,257 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 19:31:44,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:44,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926988223] [2022-11-18 19:31:44,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926988223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:44,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:44,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102364321] [2022-11-18 19:31:44,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:44,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:44,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:44,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:44,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:44,266 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:44,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:44,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:44,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:44,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:44,497 INFO L130 PetriNetUnfolder]: 71/246 cut-off events. [2022-11-18 19:31:44,497 INFO L131 PetriNetUnfolder]: For 22/38 co-relation queries the response was YES. [2022-11-18 19:31:44,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 246 events. 71/246 cut-off events. For 22/38 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 795 event pairs, 71 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 365. Up to 136 conditions per place. [2022-11-18 19:31:44,501 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 14 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2022-11-18 19:31:44,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 89 transitions, 224 flow [2022-11-18 19:31:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2022-11-18 19:31:44,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6741379310344827 [2022-11-18 19:31:44,503 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2022-11-18 19:31:44,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2022-11-18 19:31:44,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:44,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2022-11-18 19:31:44,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:31:44,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:44,507 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:44,507 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 194 flow. Second operand 4 states and 391 transitions. [2022-11-18 19:31:44,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 89 transitions, 224 flow [2022-11-18 19:31:44,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 89 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:44,510 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 190 flow [2022-11-18 19:31:44,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=97, PETRI_TRANSITIONS=89} [2022-11-18 19:31:44,512 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -34 predicate places. [2022-11-18 19:31:44,512 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 190 flow [2022-11-18 19:31:44,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:44,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:44,513 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 19:31:44,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:31:44,513 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:44,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161374, now seen corresponding path program 1 times [2022-11-18 19:31:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:44,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115112256] [2022-11-18 19:31:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:44,659 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 19:31:44,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:44,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115112256] [2022-11-18 19:31:44,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115112256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:44,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:44,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:44,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052142558] [2022-11-18 19:31:44,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:44,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:44,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:44,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:44,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:44,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:44,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:44,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:44,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:44,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:44,825 INFO L130 PetriNetUnfolder]: 38/183 cut-off events. [2022-11-18 19:31:44,825 INFO L131 PetriNetUnfolder]: For 12/21 co-relation queries the response was YES. [2022-11-18 19:31:44,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 183 events. 38/183 cut-off events. For 12/21 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 459 event pairs, 38 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 244. Up to 79 conditions per place. [2022-11-18 19:31:44,826 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 12 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2022-11-18 19:31:44,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 87 transitions, 216 flow [2022-11-18 19:31:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 389 transitions. [2022-11-18 19:31:44,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6706896551724137 [2022-11-18 19:31:44,829 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 389 transitions. [2022-11-18 19:31:44,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 389 transitions. [2022-11-18 19:31:44,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:44,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 389 transitions. [2022-11-18 19:31:44,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 19:31:44,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:44,833 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:44,834 INFO L175 Difference]: Start difference. First operand has 97 places, 89 transitions, 190 flow. Second operand 4 states and 389 transitions. [2022-11-18 19:31:44,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 87 transitions, 216 flow [2022-11-18 19:31:44,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 87 transitions, 210 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:44,836 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 186 flow [2022-11-18 19:31:44,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=95, PETRI_TRANSITIONS=87} [2022-11-18 19:31:44,837 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -36 predicate places. [2022-11-18 19:31:44,837 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 186 flow [2022-11-18 19:31:44,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:44,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:31:44,838 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 19:31:44,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:31:44,838 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2022-11-18 19:31:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1599161377, now seen corresponding path program 1 times [2022-11-18 19:31:44,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:44,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554155345] [2022-11-18 19:31:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:44,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:31:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:31:45,000 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 19:31:45,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:31:45,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554155345] [2022-11-18 19:31:45,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554155345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:31:45,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:31:45,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:31:45,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113756874] [2022-11-18 19:31:45,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:31:45,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:31:45,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:31:45,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:31:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:31:45,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 145 [2022-11-18 19:31:45,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:45,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:31:45,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 145 [2022-11-18 19:31:45,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:31:45,101 INFO L130 PetriNetUnfolder]: 15/136 cut-off events. [2022-11-18 19:31:45,101 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-11-18 19:31:45,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 136 events. 15/136 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 222 event pairs, 15 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 140. Up to 38 conditions per place. [2022-11-18 19:31:45,102 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2022-11-18 19:31:45,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 85 transitions, 208 flow [2022-11-18 19:31:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:31:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:31:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2022-11-18 19:31:45,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6672413793103448 [2022-11-18 19:31:45,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2022-11-18 19:31:45,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2022-11-18 19:31:45,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:31:45,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2022-11-18 19:31:45,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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 19:31:45,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:45,108 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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 19:31:45,108 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 186 flow. Second operand 4 states and 387 transitions. [2022-11-18 19:31:45,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 85 transitions, 208 flow [2022-11-18 19:31:45,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 85 transitions, 202 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:31:45,109 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2022-11-18 19:31:45,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2022-11-18 19:31:45,110 INFO L288 CegarLoopForPetriNet]: 131 programPoint places, -38 predicate places. [2022-11-18 19:31:45,110 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2022-11-18 19:31:45,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 19:31:45,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2022-11-18 19:31:45,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2022-11-18 19:31:45,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2022-11-18 19:31:45,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2022-11-18 19:31:45,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2022-11-18 19:31:45,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2022-11-18 19:31:45,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2022-11-18 19:31:45,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2022-11-18 19:31:45,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2022-11-18 19:31:45,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2022-11-18 19:31:45,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2022-11-18 19:31:45,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2022-11-18 19:31:45,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2022-11-18 19:31:45,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2022-11-18 19:31:45,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2022-11-18 19:31:45,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2022-11-18 19:31:45,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2022-11-18 19:31:45,118 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2022-11-18 19:31:45,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2022-11-18 19:31:45,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2022-11-18 19:31:45,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2022-11-18 19:31:45,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2022-11-18 19:31:45,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2022-11-18 19:31:45,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2022-11-18 19:31:45,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2022-11-18 19:31:45,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2022-11-18 19:31:45,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2022-11-18 19:31:45,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2022-11-18 19:31:45,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2022-11-18 19:31:45,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2022-11-18 19:31:45,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2022-11-18 19:31:45,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2022-11-18 19:31:45,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2022-11-18 19:31:45,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2022-11-18 19:31:45,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2022-11-18 19:31:45,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2022-11-18 19:31:45,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2022-11-18 19:31:45,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2022-11-18 19:31:45,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2022-11-18 19:31:45,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2022-11-18 19:31:45,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2022-11-18 19:31:45,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2022-11-18 19:31:45,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2022-11-18 19:31:45,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2022-11-18 19:31:45,123 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2022-11-18 19:31:45,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2022-11-18 19:31:45,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2022-11-18 19:31:45,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2022-11-18 19:31:45,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2022-11-18 19:31:45,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2022-11-18 19:31:45,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2022-11-18 19:31:45,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2022-11-18 19:31:45,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2022-11-18 19:31:45,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2022-11-18 19:31:45,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2022-11-18 19:31:45,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2022-11-18 19:31:45,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2022-11-18 19:31:45,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2022-11-18 19:31:45,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2022-11-18 19:31:45,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2022-11-18 19:31:45,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2022-11-18 19:31:45,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2022-11-18 19:31:45,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2022-11-18 19:31:45,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2022-11-18 19:31:45,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2022-11-18 19:31:45,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2022-11-18 19:31:45,127 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2022-11-18 19:31:45,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2022-11-18 19:31:45,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2022-11-18 19:31:45,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2022-11-18 19:31:45,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2022-11-18 19:31:45,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2022-11-18 19:31:45,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2022-11-18 19:31:45,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2022-11-18 19:31:45,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2022-11-18 19:31:45,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:31:45,130 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:31:45,136 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:31:45,136 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:31:45,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:31:45 BasicIcfg [2022-11-18 19:31:45,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:31:45,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:31:45,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:31:45,145 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:31:45,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:29" (3/4) ... [2022-11-18 19:31:45,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:31:45,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 19:31:45,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 19:31:45,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 19:31:45,158 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-18 19:31:45,158 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:31:45,159 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:31:45,159 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:31:45,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:31:45,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:31:45,203 INFO L158 Benchmark]: Toolchain (without parser) took 18400.16ms. Allocated memory was 104.9MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 74.2MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 628.5MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,203 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 62.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:31:45,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.27ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 80.2MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.61ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 77.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,204 INFO L158 Benchmark]: Boogie Preprocessor took 32.75ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 76.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,205 INFO L158 Benchmark]: RCFGBuilder took 2535.40ms. Allocated memory was 104.9MB in the beginning and 192.9MB in the end (delta: 88.1MB). Free memory was 75.6MB in the beginning and 132.2MB in the end (delta: -56.6MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,205 INFO L158 Benchmark]: TraceAbstraction took 15408.24ms. Allocated memory was 192.9MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 132.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 596.6MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,205 INFO L158 Benchmark]: Witness Printer took 56.83ms. Allocated memory is still 2.0GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:31:45,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 57.8MB in the beginning and 57.7MB in the end (delta: 62.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.27ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 80.2MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.61ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 77.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.75ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 76.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2535.40ms. Allocated memory was 104.9MB in the beginning and 192.9MB in the end (delta: 88.1MB). Free memory was 75.6MB in the beginning and 132.2MB in the end (delta: -56.6MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15408.24ms. Allocated memory was 192.9MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 132.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 596.6MB. Max. memory is 16.1GB. * Witness Printer took 56.83ms. Allocated memory is still 2.0GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: 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 7 procedures, 196 locations, 75 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: 14.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 492 IncrementalHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 48 mSDtfsCounter, 492 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 48, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 696 NumberOfCodeBlocks, 696 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 1602 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:31:45,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930475b3-34ac-46b3-9add-476013ed683f/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