./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/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_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/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_70dddfed-8ecf-42db-92c3-380b762c3bb3/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 c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:09:56,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:09:56,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:09:56,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:09:56,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:09:56,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:09:56,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:09:56,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:09:56,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:09:56,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:09:56,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:09:56,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:09:56,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:09:56,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:09:56,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:09:56,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:09:56,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:09:56,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:09:56,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:09:56,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:09:56,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:09:56,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:09:56,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:09:56,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:09:56,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:09:56,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:09:56,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:09:56,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:09:56,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:09:56,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:09:56,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:09:56,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:09:56,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:09:56,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:09:56,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:09:56,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:09:56,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:09:56,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:09:56,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:09:56,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:09:56,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:09:56,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:09:56,261 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:09:56,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:09:56,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:09:56,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:09:56,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:09:56,264 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:09:56,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:09:56,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:09:56,265 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:09:56,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:09:56,266 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:09:56,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:09:56,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:09:56,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:09:56,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:09:56,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:09:56,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:09:56,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:09:56,267 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:09:56,268 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:09:56,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:09:56,268 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:09:56,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:09:56,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:09:56,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:09:56,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:09:56,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:09:56,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:09:56,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:09:56,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:09:56,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:09:56,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:09:56,272 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:09:56,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:09:56,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:09:56,272 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_70dddfed-8ecf-42db-92c3-380b762c3bb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2022-11-18 20:09:56,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:09:56,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:09:56,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:09:56,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:09:56,620 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:09:56,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2022-11-18 20:09:56,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/data/72f501b8d/ba634766de554c6aabe2b819ddcddd14/FLAG18b9d87d1 [2022-11-18 20:09:57,249 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:09:57,255 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2022-11-18 20:09:57,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/data/72f501b8d/ba634766de554c6aabe2b819ddcddd14/FLAG18b9d87d1 [2022-11-18 20:09:57,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/data/72f501b8d/ba634766de554c6aabe2b819ddcddd14 [2022-11-18 20:09:57,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:09:57,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:09:57,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:09:57,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:09:57,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:09:57,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:09:57" (1/1) ... [2022-11-18 20:09:57,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa61f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:57, skipping insertion in model container [2022-11-18 20:09:57,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:09:57" (1/1) ... [2022-11-18 20:09:57,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:09:57,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:09:58,087 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_70dddfed-8ecf-42db-92c3-380b762c3bb3/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i[41323,41336] [2022-11-18 20:09:58,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:09:58,170 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:09:58,225 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_70dddfed-8ecf-42db-92c3-380b762c3bb3/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i[41323,41336] [2022-11-18 20:09:58,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:09:58,317 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:09:58,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58 WrapperNode [2022-11-18 20:09:58,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:09:58,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:09:58,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:09:58,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:09:58,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,380 INFO L138 Inliner]: procedures = 271, calls = 41, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 269 [2022-11-18 20:09:58,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:09:58,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:09:58,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:09:58,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:09:58,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:09:58,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:09:58,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:09:58,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:09:58,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (1/1) ... [2022-11-18 20:09:58,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:09:58,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:09:58,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:09:58,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:09:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:09:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:09:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:09:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:09:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:09:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:09:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:09:58,549 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:09:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:09:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:09:58,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:09:58,551 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:09:58,773 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:09:58,785 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:09:59,224 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:09:59,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:09:59,235 INFO L300 CfgBuilder]: Removed 35 assume(true) statements. [2022-11-18 20:09:59,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:09:59 BoogieIcfgContainer [2022-11-18 20:09:59,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:09:59,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:09:59,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:09:59,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:09:59,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:09:57" (1/3) ... [2022-11-18 20:09:59,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69906ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:09:59, skipping insertion in model container [2022-11-18 20:09:59,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:58" (2/3) ... [2022-11-18 20:09:59,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69906ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:09:59, skipping insertion in model container [2022-11-18 20:09:59,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:09:59" (3/3) ... [2022-11-18 20:09:59,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2022-11-18 20:09:59,256 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:09:59,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:09:59,267 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-18 20:09:59,267 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:09:59,412 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:09:59,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 296 transitions, 600 flow [2022-11-18 20:09:59,652 INFO L130 PetriNetUnfolder]: 73/453 cut-off events. [2022-11-18 20:09:59,652 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:09:59,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 453 events. 73/453 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2194 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2022-11-18 20:09:59,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 296 transitions, 600 flow [2022-11-18 20:09:59,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 293 transitions, 594 flow [2022-11-18 20:09:59,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:09:59,717 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;@6f8a234e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:09:59,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-18 20:09:59,735 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 20:09:59,736 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:09:59,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:09:59,737 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] [2022-11-18 20:09:59,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:09:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash 845188103, now seen corresponding path program 1 times [2022-11-18 20:09:59,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:59,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388899507] [2022-11-18 20:09:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:00,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:00,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:00,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388899507] [2022-11-18 20:10:00,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388899507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:00,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:00,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117679386] [2022-11-18 20:10:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:00,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:00,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:00,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:00,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:00,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 293 transitions, 594 flow. Second operand has 4 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:00,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:00,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:00,328 INFO L130 PetriNetUnfolder]: 9/389 cut-off events. [2022-11-18 20:10:00,328 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:10:00,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 389 events. 9/389 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1762 event pairs, 0 based on Foata normal form. 62/402 useless extension candidates. Maximal degree in co-relation 210. Up to 15 conditions per place. [2022-11-18 20:10:00,336 INFO L137 encePairwiseOnDemand]: 251/296 looper letters, 17 selfloop transitions, 4 changer transitions 0/259 dead transitions. [2022-11-18 20:10:00,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 259 transitions, 568 flow [2022-11-18 20:10:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1268 transitions. [2022-11-18 20:10:00,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8567567567567568 [2022-11-18 20:10:00,368 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1268 transitions. [2022-11-18 20:10:00,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1268 transitions. [2022-11-18 20:10:00,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:00,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1268 transitions. [2022-11-18 20:10:00,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 253.6) internal successors, (1268), 5 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,419 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,421 INFO L175 Difference]: Start difference. First operand has 252 places, 293 transitions, 594 flow. Second operand 5 states and 1268 transitions. [2022-11-18 20:10:00,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 259 transitions, 568 flow [2022-11-18 20:10:00,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 259 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:10:00,439 INFO L231 Difference]: Finished difference. Result has 256 places, 255 transitions, 544 flow [2022-11-18 20:10:00,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=544, PETRI_PLACES=256, PETRI_TRANSITIONS=255} [2022-11-18 20:10:00,447 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 4 predicate places. [2022-11-18 20:10:00,448 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 255 transitions, 544 flow [2022-11-18 20:10:00,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:00,450 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:00,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:10:00,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:00,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:00,452 INFO L85 PathProgramCache]: Analyzing trace with hash -685977515, now seen corresponding path program 1 times [2022-11-18 20:10:00,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:00,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368633594] [2022-11-18 20:10:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:00,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:10:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:00,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368633594] [2022-11-18 20:10:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368633594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:00,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748431637] [2022-11-18 20:10:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:00,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:00,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:00,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:00,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 255 transitions, 544 flow. Second operand has 4 states, 4 states have (on average 244.25) internal successors, (977), 4 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:00,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:00,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:00,722 INFO L130 PetriNetUnfolder]: 9/388 cut-off events. [2022-11-18 20:10:00,722 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 20:10:00,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 388 events. 9/388 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1756 event pairs, 0 based on Foata normal form. 1/343 useless extension candidates. Maximal degree in co-relation 378. Up to 7 conditions per place. [2022-11-18 20:10:00,727 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 9 selfloop transitions, 8 changer transitions 0/255 dead transitions. [2022-11-18 20:10:00,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 255 transitions, 576 flow [2022-11-18 20:10:00,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:00,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1220 transitions. [2022-11-18 20:10:00,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2022-11-18 20:10:00,732 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1220 transitions. [2022-11-18 20:10:00,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1220 transitions. [2022-11-18 20:10:00,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:00,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1220 transitions. [2022-11-18 20:10:00,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,741 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,742 INFO L175 Difference]: Start difference. First operand has 256 places, 255 transitions, 544 flow. Second operand 5 states and 1220 transitions. [2022-11-18 20:10:00,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 255 transitions, 576 flow [2022-11-18 20:10:00,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 255 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:10:00,751 INFO L231 Difference]: Finished difference. Result has 259 places, 255 transitions, 562 flow [2022-11-18 20:10:00,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=562, PETRI_PLACES=259, PETRI_TRANSITIONS=255} [2022-11-18 20:10:00,753 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 7 predicate places. [2022-11-18 20:10:00,754 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 255 transitions, 562 flow [2022-11-18 20:10:00,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 244.25) internal successors, (977), 4 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:00,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:00,757 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:00,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:10:00,759 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash 209534281, now seen corresponding path program 1 times [2022-11-18 20:10:00,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:00,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237771297] [2022-11-18 20:10:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:00,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:00,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:00,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237771297] [2022-11-18 20:10:00,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237771297] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:00,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433880453] [2022-11-18 20:10:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:00,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:00,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:00,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:00,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:10:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:01,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:01,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:01,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:10:01,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433880453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:01,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:10:01,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 20:10:01,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901056317] [2022-11-18 20:10:01,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:01,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:10:01,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:10:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:10:01,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:01,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 255 transitions, 562 flow. Second operand has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:01,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:01,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:01,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:01,255 INFO L130 PetriNetUnfolder]: 9/387 cut-off events. [2022-11-18 20:10:01,255 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 20:10:01,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 387 events. 9/387 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1749 event pairs, 0 based on Foata normal form. 1/342 useless extension candidates. Maximal degree in co-relation 376. Up to 10 conditions per place. [2022-11-18 20:10:01,260 INFO L137 encePairwiseOnDemand]: 292/296 looper letters, 11 selfloop transitions, 5 changer transitions 0/254 dead transitions. [2022-11-18 20:10:01,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 254 transitions, 590 flow [2022-11-18 20:10:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:10:01,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:10:01,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 977 transitions. [2022-11-18 20:10:01,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825168918918919 [2022-11-18 20:10:01,264 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 977 transitions. [2022-11-18 20:10:01,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 977 transitions. [2022-11-18 20:10:01,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:01,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 977 transitions. [2022-11-18 20:10:01,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 244.25) internal successors, (977), 4 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:01,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:01,271 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:01,272 INFO L175 Difference]: Start difference. First operand has 259 places, 255 transitions, 562 flow. Second operand 4 states and 977 transitions. [2022-11-18 20:10:01,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 254 transitions, 590 flow [2022-11-18 20:10:01,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 254 transitions, 578 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:01,278 INFO L231 Difference]: Finished difference. Result has 258 places, 254 transitions, 556 flow [2022-11-18 20:10:01,279 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=556, PETRI_PLACES=258, PETRI_TRANSITIONS=254} [2022-11-18 20:10:01,281 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 6 predicate places. [2022-11-18 20:10:01,282 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 254 transitions, 556 flow [2022-11-18 20:10:01,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.8) internal successors, (1219), 5 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:01,283 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:01,283 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] [2022-11-18 20:10:01,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:01,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:01,490 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:01,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash -212299625, now seen corresponding path program 1 times [2022-11-18 20:10:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:01,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030699243] [2022-11-18 20:10:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:01,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:01,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:01,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030699243] [2022-11-18 20:10:01,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030699243] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:01,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205130798] [2022-11-18 20:10:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:01,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:01,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:01,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:01,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:10:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:01,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:01,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:01,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:01,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:01,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205130798] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:01,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:01,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:10:01,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169596888] [2022-11-18 20:10:01,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:01,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:01,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:01,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:01,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:01,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 254 transitions, 556 flow. Second operand has 10 states, 10 states have (on average 243.7) internal successors, (2437), 10 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:01,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:01,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:01,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:02,030 INFO L130 PetriNetUnfolder]: 9/395 cut-off events. [2022-11-18 20:10:02,031 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 20:10:02,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 395 events. 9/395 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1736 event pairs, 0 based on Foata normal form. 2/351 useless extension candidates. Maximal degree in co-relation 366. Up to 7 conditions per place. [2022-11-18 20:10:02,035 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 18 selfloop transitions, 9 changer transitions 0/265 dead transitions. [2022-11-18 20:10:02,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 265 transitions, 648 flow [2022-11-18 20:10:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:10:02,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:10:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2198 transitions. [2022-11-18 20:10:02,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825075075075075 [2022-11-18 20:10:02,040 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2198 transitions. [2022-11-18 20:10:02,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2198 transitions. [2022-11-18 20:10:02,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:02,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2198 transitions. [2022-11-18 20:10:02,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 244.22222222222223) internal successors, (2198), 9 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 296.0) internal successors, (2960), 10 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,054 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 296.0) internal successors, (2960), 10 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,054 INFO L175 Difference]: Start difference. First operand has 258 places, 254 transitions, 556 flow. Second operand 9 states and 2198 transitions. [2022-11-18 20:10:02,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 265 transitions, 648 flow [2022-11-18 20:10:02,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 265 transitions, 634 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:02,085 INFO L231 Difference]: Finished difference. Result has 267 places, 258 transitions, 602 flow [2022-11-18 20:10:02,085 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=602, PETRI_PLACES=267, PETRI_TRANSITIONS=258} [2022-11-18 20:10:02,086 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 15 predicate places. [2022-11-18 20:10:02,086 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 258 transitions, 602 flow [2022-11-18 20:10:02,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 243.7) internal successors, (2437), 10 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:02,090 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:02,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:02,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:02,291 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:02,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:02,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1291795671, now seen corresponding path program 2 times [2022-11-18 20:10:02,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:02,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071292091] [2022-11-18 20:10:02,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:02,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:10:02,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:02,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071292091] [2022-11-18 20:10:02,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071292091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:02,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:02,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:02,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829311785] [2022-11-18 20:10:02,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:02,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:02,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:02,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:02,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:02,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 602 flow. Second operand has 4 states, 4 states have (on average 242.75) internal successors, (971), 4 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:02,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:02,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:02,507 INFO L130 PetriNetUnfolder]: 6/267 cut-off events. [2022-11-18 20:10:02,507 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-18 20:10:02,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 267 events. 6/267 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 811 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 250. Up to 7 conditions per place. [2022-11-18 20:10:02,511 INFO L137 encePairwiseOnDemand]: 289/296 looper letters, 10 selfloop transitions, 4 changer transitions 0/258 dead transitions. [2022-11-18 20:10:02,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 258 transitions, 630 flow [2022-11-18 20:10:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:02,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1222 transitions. [2022-11-18 20:10:02,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256756756756757 [2022-11-18 20:10:02,515 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1222 transitions. [2022-11-18 20:10:02,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1222 transitions. [2022-11-18 20:10:02,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:02,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1222 transitions. [2022-11-18 20:10:02,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,522 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,522 INFO L175 Difference]: Start difference. First operand has 267 places, 258 transitions, 602 flow. Second operand 5 states and 1222 transitions. [2022-11-18 20:10:02,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 258 transitions, 630 flow [2022-11-18 20:10:02,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 258 transitions, 614 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 20:10:02,528 INFO L231 Difference]: Finished difference. Result has 266 places, 256 transitions, 594 flow [2022-11-18 20:10:02,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=594, PETRI_PLACES=266, PETRI_TRANSITIONS=256} [2022-11-18 20:10:02,530 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 14 predicate places. [2022-11-18 20:10:02,530 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 256 transitions, 594 flow [2022-11-18 20:10:02,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 242.75) internal successors, (971), 4 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:02,531 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:02,531 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:02,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:10:02,531 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1301276799, now seen corresponding path program 1 times [2022-11-18 20:10:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:02,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116245811] [2022-11-18 20:10:02,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:10:02,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:02,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116245811] [2022-11-18 20:10:02,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116245811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:02,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868394968] [2022-11-18 20:10:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:02,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:02,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:02,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:02,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:10:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:02,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:10:02,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:10:02,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:10:03,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868394968] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:03,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:03,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:10:03,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679617833] [2022-11-18 20:10:03,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:03,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:10:03,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:10:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:10:03,087 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:03,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 256 transitions, 594 flow. Second operand has 18 states, 18 states have (on average 244.05555555555554) internal successors, (4393), 18 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:03,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:03,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:03,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:03,402 INFO L130 PetriNetUnfolder]: 6/295 cut-off events. [2022-11-18 20:10:03,402 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 20:10:03,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 295 events. 6/295 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 812 event pairs, 0 based on Foata normal form. 4/273 useless extension candidates. Maximal degree in co-relation 243. Up to 9 conditions per place. [2022-11-18 20:10:03,407 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 34 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2022-11-18 20:10:03,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 291 transitions, 858 flow [2022-11-18 20:10:03,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:10:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:10:03,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5120 transitions. [2022-11-18 20:10:03,417 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8236808236808236 [2022-11-18 20:10:03,417 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5120 transitions. [2022-11-18 20:10:03,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5120 transitions. [2022-11-18 20:10:03,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:03,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5120 transitions. [2022-11-18 20:10:03,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 243.8095238095238) internal successors, (5120), 21 states have internal predecessors, (5120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:03,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 296.0) internal successors, (6512), 22 states have internal predecessors, (6512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:03,448 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 296.0) internal successors, (6512), 22 states have internal predecessors, (6512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:03,448 INFO L175 Difference]: Start difference. First operand has 266 places, 256 transitions, 594 flow. Second operand 21 states and 5120 transitions. [2022-11-18 20:10:03,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 291 transitions, 858 flow [2022-11-18 20:10:03,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 291 transitions, 850 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:10:03,454 INFO L231 Difference]: Finished difference. Result has 287 places, 269 transitions, 742 flow [2022-11-18 20:10:03,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=742, PETRI_PLACES=287, PETRI_TRANSITIONS=269} [2022-11-18 20:10:03,456 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 35 predicate places. [2022-11-18 20:10:03,456 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 269 transitions, 742 flow [2022-11-18 20:10:03,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 244.05555555555554) internal successors, (4393), 18 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:03,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:03,458 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:03,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:03,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:10:03,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:03,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:03,665 INFO L85 PathProgramCache]: Analyzing trace with hash -792104705, now seen corresponding path program 2 times [2022-11-18 20:10:03,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:03,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938895719] [2022-11-18 20:10:03,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:03,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:10:04,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:04,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938895719] [2022-11-18 20:10:04,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938895719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:04,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902055236] [2022-11-18 20:10:04,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:10:04,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:04,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:04,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:04,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:10:04,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:10:04,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:04,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:10:04,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:10:04,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:10:04,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902055236] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:04,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:04,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:10:04,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902381791] [2022-11-18 20:10:04,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:04,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:10:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:10:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:10:04,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-11-18 20:10:04,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 269 transitions, 742 flow. Second operand has 23 states, 23 states have (on average 244.30434782608697) internal successors, (5619), 23 states have internal predecessors, (5619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:04,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:04,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-11-18 20:10:04,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:05,129 INFO L130 PetriNetUnfolder]: 6/316 cut-off events. [2022-11-18 20:10:05,129 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2022-11-18 20:10:05,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 316 events. 6/316 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 813 event pairs, 0 based on Foata normal form. 3/293 useless extension candidates. Maximal degree in co-relation 334. Up to 12 conditions per place. [2022-11-18 20:10:05,133 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 46 selfloop transitions, 30 changer transitions 0/312 dead transitions. [2022-11-18 20:10:05,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 312 transitions, 1104 flow [2022-11-18 20:10:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:10:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:10:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7309 transitions. [2022-11-18 20:10:05,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8230855855855855 [2022-11-18 20:10:05,151 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7309 transitions. [2022-11-18 20:10:05,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7309 transitions. [2022-11-18 20:10:05,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:05,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7309 transitions. [2022-11-18 20:10:05,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 243.63333333333333) internal successors, (7309), 30 states have internal predecessors, (7309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 296.0) internal successors, (9176), 31 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,223 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 296.0) internal successors, (9176), 31 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,223 INFO L175 Difference]: Start difference. First operand has 287 places, 269 transitions, 742 flow. Second operand 30 states and 7309 transitions. [2022-11-18 20:10:05,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 312 transitions, 1104 flow [2022-11-18 20:10:05,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 312 transitions, 1024 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 20:10:05,233 INFO L231 Difference]: Finished difference. Result has 312 places, 279 transitions, 840 flow [2022-11-18 20:10:05,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=840, PETRI_PLACES=312, PETRI_TRANSITIONS=279} [2022-11-18 20:10:05,234 INFO L288 CegarLoopForPetriNet]: 252 programPoint places, 60 predicate places. [2022-11-18 20:10:05,234 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 279 transitions, 840 flow [2022-11-18 20:10:05,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 244.30434782608697) internal successors, (5619), 23 states have internal predecessors, (5619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:05,236 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:05,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:05,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:05,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 20:10:05,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash -62847603, now seen corresponding path program 3 times [2022-11-18 20:10:05,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:05,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609597787] [2022-11-18 20:10:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:10:05,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:10:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:10:05,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:10:05,516 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:10:05,517 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2022-11-18 20:10:05,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2022-11-18 20:10:05,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2022-11-18 20:10:05,519 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2022-11-18 20:10:05,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2022-11-18 20:10:05,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2022-11-18 20:10:05,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2022-11-18 20:10:05,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2022-11-18 20:10:05,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2022-11-18 20:10:05,521 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2022-11-18 20:10:05,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2022-11-18 20:10:05,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2022-11-18 20:10:05,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2022-11-18 20:10:05,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2022-11-18 20:10:05,522 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2022-11-18 20:10:05,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2022-11-18 20:10:05,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2022-11-18 20:10:05,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2022-11-18 20:10:05,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2022-11-18 20:10:05,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2022-11-18 20:10:05,523 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2022-11-18 20:10:05,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2022-11-18 20:10:05,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2022-11-18 20:10:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:10:05,524 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2022-11-18 20:10:05,527 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:10:05,527 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:10:05,566 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:10:05,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 380 transitions, 778 flow [2022-11-18 20:10:05,678 INFO L130 PetriNetUnfolder]: 118/731 cut-off events. [2022-11-18 20:10:05,678 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:10:05,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 731 events. 118/731 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3938 event pairs, 0 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 455. Up to 12 conditions per place. [2022-11-18 20:10:05,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 380 transitions, 778 flow [2022-11-18 20:10:05,701 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 380 transitions, 778 flow [2022-11-18 20:10:05,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:10:05,709 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;@6f8a234e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:10:05,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-18 20:10:05,711 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 20:10:05,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:10:05,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:05,712 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] [2022-11-18 20:10:05,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:05,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1913492483, now seen corresponding path program 1 times [2022-11-18 20:10:05,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:05,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013647914] [2022-11-18 20:10:05,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:05,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:05,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013647914] [2022-11-18 20:10:05,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013647914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:05,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:05,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:05,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28377597] [2022-11-18 20:10:05,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:05,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:05,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:05,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:05,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:05,760 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:05,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 380 transitions, 778 flow. Second operand has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:05,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:05,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:05,935 INFO L130 PetriNetUnfolder]: 17/629 cut-off events. [2022-11-18 20:10:05,935 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-18 20:10:05,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 629 events. 17/629 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3350 event pairs, 0 based on Foata normal form. 126/672 useless extension candidates. Maximal degree in co-relation 415. Up to 19 conditions per place. [2022-11-18 20:10:05,946 INFO L137 encePairwiseOnDemand]: 323/380 looper letters, 19 selfloop transitions, 4 changer transitions 0/333 dead transitions. [2022-11-18 20:10:05,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 333 transitions, 730 flow [2022-11-18 20:10:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1627 transitions. [2022-11-18 20:10:05,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8563157894736843 [2022-11-18 20:10:05,950 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1627 transitions. [2022-11-18 20:10:05,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1627 transitions. [2022-11-18 20:10:05,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:05,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1627 transitions. [2022-11-18 20:10:05,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 325.4) internal successors, (1627), 5 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,958 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,958 INFO L175 Difference]: Start difference. First operand has 325 places, 380 transitions, 778 flow. Second operand 5 states and 1627 transitions. [2022-11-18 20:10:05,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 333 transitions, 730 flow [2022-11-18 20:10:05,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 333 transitions, 730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:10:05,964 INFO L231 Difference]: Finished difference. Result has 328 places, 329 transitions, 702 flow [2022-11-18 20:10:05,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=702, PETRI_PLACES=328, PETRI_TRANSITIONS=329} [2022-11-18 20:10:05,968 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 3 predicate places. [2022-11-18 20:10:05,968 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 329 transitions, 702 flow [2022-11-18 20:10:05,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.5) internal successors, (1246), 4 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:05,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:05,969 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:05,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:10:05,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:05,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:05,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1736378411, now seen corresponding path program 1 times [2022-11-18 20:10:05,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:05,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799640971] [2022-11-18 20:10:05,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:05,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:10:06,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:06,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799640971] [2022-11-18 20:10:06,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799640971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:06,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:06,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050006566] [2022-11-18 20:10:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:06,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:06,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:06,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:06,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 329 transitions, 702 flow. Second operand has 4 states, 4 states have (on average 313.25) internal successors, (1253), 4 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:06,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:06,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:06,152 INFO L130 PetriNetUnfolder]: 17/628 cut-off events. [2022-11-18 20:10:06,152 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 20:10:06,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 628 events. 17/628 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3351 event pairs, 0 based on Foata normal form. 1/549 useless extension candidates. Maximal degree in co-relation 629. Up to 11 conditions per place. [2022-11-18 20:10:06,163 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 11 selfloop transitions, 8 changer transitions 0/329 dead transitions. [2022-11-18 20:10:06,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 329 transitions, 738 flow [2022-11-18 20:10:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1567 transitions. [2022-11-18 20:10:06,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8247368421052632 [2022-11-18 20:10:06,167 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1567 transitions. [2022-11-18 20:10:06,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1567 transitions. [2022-11-18 20:10:06,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:06,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1567 transitions. [2022-11-18 20:10:06,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.4) internal successors, (1567), 5 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,176 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,176 INFO L175 Difference]: Start difference. First operand has 328 places, 329 transitions, 702 flow. Second operand 5 states and 1567 transitions. [2022-11-18 20:10:06,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 329 transitions, 738 flow [2022-11-18 20:10:06,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 329 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:10:06,182 INFO L231 Difference]: Finished difference. Result has 331 places, 329 transitions, 720 flow [2022-11-18 20:10:06,182 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=720, PETRI_PLACES=331, PETRI_TRANSITIONS=329} [2022-11-18 20:10:06,183 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 6 predicate places. [2022-11-18 20:10:06,183 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 329 transitions, 720 flow [2022-11-18 20:10:06,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.25) internal successors, (1253), 4 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,184 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:06,184 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:06,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:10:06,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:06,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:06,185 INFO L85 PathProgramCache]: Analyzing trace with hash 2006845253, now seen corresponding path program 1 times [2022-11-18 20:10:06,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:06,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893656733] [2022-11-18 20:10:06,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:06,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:06,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:06,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893656733] [2022-11-18 20:10:06,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893656733] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:06,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283088331] [2022-11-18 20:10:06,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:06,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:06,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:06,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:06,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:10:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:06,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:06,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:06,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:10:06,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283088331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:06,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:10:06,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 20:10:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700579764] [2022-11-18 20:10:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:06,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:10:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:10:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:10:06,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:06,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 329 transitions, 720 flow. Second operand has 5 states, 5 states have (on average 312.8) internal successors, (1564), 5 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:06,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:06,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:06,587 INFO L130 PetriNetUnfolder]: 17/627 cut-off events. [2022-11-18 20:10:06,587 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-18 20:10:06,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 627 events. 17/627 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3337 event pairs, 0 based on Foata normal form. 1/548 useless extension candidates. Maximal degree in co-relation 627. Up to 14 conditions per place. [2022-11-18 20:10:06,599 INFO L137 encePairwiseOnDemand]: 376/380 looper letters, 13 selfloop transitions, 5 changer transitions 0/328 dead transitions. [2022-11-18 20:10:06,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 328 transitions, 752 flow [2022-11-18 20:10:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:10:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:10:06,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1255 transitions. [2022-11-18 20:10:06,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256578947368421 [2022-11-18 20:10:06,602 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1255 transitions. [2022-11-18 20:10:06,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1255 transitions. [2022-11-18 20:10:06,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:06,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1255 transitions. [2022-11-18 20:10:06,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,609 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,610 INFO L175 Difference]: Start difference. First operand has 331 places, 329 transitions, 720 flow. Second operand 4 states and 1255 transitions. [2022-11-18 20:10:06,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 328 transitions, 752 flow [2022-11-18 20:10:06,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 328 transitions, 740 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:06,616 INFO L231 Difference]: Finished difference. Result has 330 places, 328 transitions, 714 flow [2022-11-18 20:10:06,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=714, PETRI_PLACES=330, PETRI_TRANSITIONS=328} [2022-11-18 20:10:06,618 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 5 predicate places. [2022-11-18 20:10:06,618 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 328 transitions, 714 flow [2022-11-18 20:10:06,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 312.8) internal successors, (1564), 5 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:06,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:06,619 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] [2022-11-18 20:10:06,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:06,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:10:06,824 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:06,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:06,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1200530405, now seen corresponding path program 1 times [2022-11-18 20:10:06,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:06,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520001399] [2022-11-18 20:10:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:06,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:06,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520001399] [2022-11-18 20:10:06,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520001399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:06,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25552503] [2022-11-18 20:10:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:06,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:06,893 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:06,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:10:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:06,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:06,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:07,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:07,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:07,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25552503] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:07,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:07,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:10:07,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145005078] [2022-11-18 20:10:07,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:07,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:07,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:07,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:07,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:07,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:07,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 328 transitions, 714 flow. Second operand has 10 states, 10 states have (on average 312.7) internal successors, (3127), 10 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:07,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:07,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:07,273 INFO L130 PetriNetUnfolder]: 17/635 cut-off events. [2022-11-18 20:10:07,273 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-18 20:10:07,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 635 events. 17/635 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3323 event pairs, 0 based on Foata normal form. 2/557 useless extension candidates. Maximal degree in co-relation 617. Up to 11 conditions per place. [2022-11-18 20:10:07,291 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 20 selfloop transitions, 9 changer transitions 0/339 dead transitions. [2022-11-18 20:10:07,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 339 transitions, 810 flow [2022-11-18 20:10:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:10:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:10:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2821 transitions. [2022-11-18 20:10:07,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8248538011695906 [2022-11-18 20:10:07,298 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2821 transitions. [2022-11-18 20:10:07,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2821 transitions. [2022-11-18 20:10:07,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:07,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2821 transitions. [2022-11-18 20:10:07,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 313.44444444444446) internal successors, (2821), 9 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,316 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,317 INFO L175 Difference]: Start difference. First operand has 330 places, 328 transitions, 714 flow. Second operand 9 states and 2821 transitions. [2022-11-18 20:10:07,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 339 transitions, 810 flow [2022-11-18 20:10:07,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 339 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:07,323 INFO L231 Difference]: Finished difference. Result has 339 places, 332 transitions, 760 flow [2022-11-18 20:10:07,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=760, PETRI_PLACES=339, PETRI_TRANSITIONS=332} [2022-11-18 20:10:07,325 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 14 predicate places. [2022-11-18 20:10:07,325 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 332 transitions, 760 flow [2022-11-18 20:10:07,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 312.7) internal successors, (3127), 10 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:07,327 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:07,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:07,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:10:07,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1612147803, now seen corresponding path program 2 times [2022-11-18 20:10:07,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:07,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143706484] [2022-11-18 20:10:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:07,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:10:07,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:07,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143706484] [2022-11-18 20:10:07,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143706484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:07,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:07,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:07,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340074947] [2022-11-18 20:10:07,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:07,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:07,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:07,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:07,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:07,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 332 transitions, 760 flow. Second operand has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:07,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:07,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:07,745 INFO L130 PetriNetUnfolder]: 13/516 cut-off events. [2022-11-18 20:10:07,745 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-18 20:10:07,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 516 events. 13/516 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2446 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 520. Up to 21 conditions per place. [2022-11-18 20:10:07,756 INFO L137 encePairwiseOnDemand]: 373/380 looper letters, 19 selfloop transitions, 4 changer transitions 0/339 dead transitions. [2022-11-18 20:10:07,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 339 transitions, 820 flow [2022-11-18 20:10:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:07,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1576 transitions. [2022-11-18 20:10:07,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8294736842105264 [2022-11-18 20:10:07,763 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1576 transitions. [2022-11-18 20:10:07,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1576 transitions. [2022-11-18 20:10:07,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:07,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1576 transitions. [2022-11-18 20:10:07,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 315.2) internal successors, (1576), 5 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,771 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,771 INFO L175 Difference]: Start difference. First operand has 339 places, 332 transitions, 760 flow. Second operand 5 states and 1576 transitions. [2022-11-18 20:10:07,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 339 transitions, 820 flow [2022-11-18 20:10:07,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 339 transitions, 804 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 20:10:07,778 INFO L231 Difference]: Finished difference. Result has 342 places, 335 transitions, 776 flow [2022-11-18 20:10:07,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=776, PETRI_PLACES=342, PETRI_TRANSITIONS=335} [2022-11-18 20:10:07,779 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 17 predicate places. [2022-11-18 20:10:07,779 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 335 transitions, 776 flow [2022-11-18 20:10:07,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:07,782 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:07,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:10:07,782 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:07,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1725951910, now seen corresponding path program 1 times [2022-11-18 20:10:07,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:07,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725778699] [2022-11-18 20:10:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:07,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:10:07,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:07,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725778699] [2022-11-18 20:10:07,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725778699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:07,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:07,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:07,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336646522] [2022-11-18 20:10:07,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:07,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:07,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:07,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:07,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:07,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 335 transitions, 776 flow. Second operand has 4 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:07,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:07,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:07,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:07,990 INFO L130 PetriNetUnfolder]: 13/515 cut-off events. [2022-11-18 20:10:07,990 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-18 20:10:07,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 515 events. 13/515 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2447 event pairs, 0 based on Foata normal form. 1/458 useless extension candidates. Maximal degree in co-relation 527. Up to 10 conditions per place. [2022-11-18 20:10:08,002 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 11 selfloop transitions, 8 changer transitions 0/335 dead transitions. [2022-11-18 20:10:08,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 335 transitions, 812 flow [2022-11-18 20:10:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:08,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:08,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1567 transitions. [2022-11-18 20:10:08,006 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8247368421052632 [2022-11-18 20:10:08,006 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1567 transitions. [2022-11-18 20:10:08,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1567 transitions. [2022-11-18 20:10:08,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:08,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1567 transitions. [2022-11-18 20:10:08,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.4) internal successors, (1567), 5 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,014 INFO L175 Difference]: Start difference. First operand has 342 places, 335 transitions, 776 flow. Second operand 5 states and 1567 transitions. [2022-11-18 20:10:08,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 335 transitions, 812 flow [2022-11-18 20:10:08,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 335 transitions, 810 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:10:08,020 INFO L231 Difference]: Finished difference. Result has 345 places, 335 transitions, 794 flow [2022-11-18 20:10:08,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=794, PETRI_PLACES=345, PETRI_TRANSITIONS=335} [2022-11-18 20:10:08,022 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 20 predicate places. [2022-11-18 20:10:08,022 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 335 transitions, 794 flow [2022-11-18 20:10:08,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:08,023 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:08,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:10:08,024 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1964902600, now seen corresponding path program 1 times [2022-11-18 20:10:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368765210] [2022-11-18 20:10:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:08,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:08,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:08,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368765210] [2022-11-18 20:10:08,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368765210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:08,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325040458] [2022-11-18 20:10:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:08,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:08,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:08,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:08,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:10:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:08,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:10:08,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:08,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:08,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325040458] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:08,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:08,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:10:08,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344002325] [2022-11-18 20:10:08,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:08,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:10:08,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:08,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:10:08,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:10:08,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:08,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 335 transitions, 794 flow. Second operand has 18 states, 18 states have (on average 313.1111111111111) internal successors, (5636), 18 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:08,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:08,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:08,825 INFO L130 PetriNetUnfolder]: 13/543 cut-off events. [2022-11-18 20:10:08,826 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-18 20:10:08,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 543 events. 13/543 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2440 event pairs, 0 based on Foata normal form. 4/489 useless extension candidates. Maximal degree in co-relation 521. Up to 11 conditions per place. [2022-11-18 20:10:08,835 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 36 selfloop transitions, 21 changer transitions 0/370 dead transitions. [2022-11-18 20:10:08,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 370 transitions, 1062 flow [2022-11-18 20:10:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:10:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:10:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6571 transitions. [2022-11-18 20:10:08,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234335839598997 [2022-11-18 20:10:08,845 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6571 transitions. [2022-11-18 20:10:08,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6571 transitions. [2022-11-18 20:10:08,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:08,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6571 transitions. [2022-11-18 20:10:08,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 312.9047619047619) internal successors, (6571), 21 states have internal predecessors, (6571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 380.0) internal successors, (8360), 22 states have internal predecessors, (8360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,880 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 380.0) internal successors, (8360), 22 states have internal predecessors, (8360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,881 INFO L175 Difference]: Start difference. First operand has 345 places, 335 transitions, 794 flow. Second operand 21 states and 6571 transitions. [2022-11-18 20:10:08,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 370 transitions, 1062 flow [2022-11-18 20:10:08,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 370 transitions, 1050 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:08,889 INFO L231 Difference]: Finished difference. Result has 367 places, 348 transitions, 938 flow [2022-11-18 20:10:08,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=938, PETRI_PLACES=367, PETRI_TRANSITIONS=348} [2022-11-18 20:10:08,890 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 42 predicate places. [2022-11-18 20:10:08,890 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 348 transitions, 938 flow [2022-11-18 20:10:08,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 313.1111111111111) internal successors, (5636), 18 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:08,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:08,892 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:08,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:10:09,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:09,098 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:09,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1743582904, now seen corresponding path program 2 times [2022-11-18 20:10:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:09,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247648753] [2022-11-18 20:10:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:09,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:09,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:09,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247648753] [2022-11-18 20:10:09,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247648753] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:09,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38431243] [2022-11-18 20:10:09,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:10:09,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:09,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:09,456 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:09,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:10:09,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:10:09,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:09,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:10:09,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:09,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:09,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38431243] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:09,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:09,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:10:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839067620] [2022-11-18 20:10:09,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:09,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:10:09,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:10:09,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:10:09,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:09,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 348 transitions, 938 flow. Second operand has 23 states, 23 states have (on average 313.3478260869565) internal successors, (7207), 23 states have internal predecessors, (7207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:09,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:09,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:09,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:10,470 INFO L130 PetriNetUnfolder]: 13/564 cut-off events. [2022-11-18 20:10:10,470 INFO L131 PetriNetUnfolder]: For 241/241 co-relation queries the response was YES. [2022-11-18 20:10:10,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 564 events. 13/564 cut-off events. For 241/241 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2440 event pairs, 0 based on Foata normal form. 3/509 useless extension candidates. Maximal degree in co-relation 575. Up to 12 conditions per place. [2022-11-18 20:10:10,482 INFO L137 encePairwiseOnDemand]: 374/380 looper letters, 48 selfloop transitions, 30 changer transitions 0/391 dead transitions. [2022-11-18 20:10:10,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 391 transitions, 1304 flow [2022-11-18 20:10:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:10:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:10:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9381 transitions. [2022-11-18 20:10:10,494 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8228947368421052 [2022-11-18 20:10:10,494 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 9381 transitions. [2022-11-18 20:10:10,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 9381 transitions. [2022-11-18 20:10:10,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:10,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 9381 transitions. [2022-11-18 20:10:10,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 312.7) internal successors, (9381), 30 states have internal predecessors, (9381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:10,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 380.0) internal successors, (11780), 31 states have internal predecessors, (11780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:10,535 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 380.0) internal successors, (11780), 31 states have internal predecessors, (11780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:10,535 INFO L175 Difference]: Start difference. First operand has 367 places, 348 transitions, 938 flow. Second operand 30 states and 9381 transitions. [2022-11-18 20:10:10,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 391 transitions, 1304 flow [2022-11-18 20:10:10,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 391 transitions, 1224 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 20:10:10,545 INFO L231 Difference]: Finished difference. Result has 392 places, 358 transitions, 1036 flow [2022-11-18 20:10:10,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1036, PETRI_PLACES=392, PETRI_TRANSITIONS=358} [2022-11-18 20:10:10,547 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 67 predicate places. [2022-11-18 20:10:10,547 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 358 transitions, 1036 flow [2022-11-18 20:10:10,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 313.3478260869565) internal successors, (7207), 23 states have internal predecessors, (7207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:10,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:10,550 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:10,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:10,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:10:10,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:10,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:10,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1305508618, now seen corresponding path program 3 times [2022-11-18 20:10:10,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:10,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038919810] [2022-11-18 20:10:10,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:10,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:10,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:10,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038919810] [2022-11-18 20:10:10,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038919810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:10,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423179301] [2022-11-18 20:10:10,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:10:10,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:10,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:10,922 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:10,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:10:11,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 20:10:11,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:11,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:11,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:11,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:10:11,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423179301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:11,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:10:11,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 20:10:11,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94777058] [2022-11-18 20:10:11,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:11,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:10:11,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:10:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:10:11,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 380 [2022-11-18 20:10:11,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 358 transitions, 1036 flow. Second operand has 5 states, 5 states have (on average 313.2) internal successors, (1566), 5 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:11,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:11,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 380 [2022-11-18 20:10:11,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:11,281 INFO L130 PetriNetUnfolder]: 13/563 cut-off events. [2022-11-18 20:10:11,281 INFO L131 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-11-18 20:10:11,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 563 events. 13/563 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2437 event pairs, 0 based on Foata normal form. 1/506 useless extension candidates. Maximal degree in co-relation 536. Up to 17 conditions per place. [2022-11-18 20:10:11,296 INFO L137 encePairwiseOnDemand]: 376/380 looper letters, 13 selfloop transitions, 5 changer transitions 0/357 dead transitions. [2022-11-18 20:10:11,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 357 transitions, 1068 flow [2022-11-18 20:10:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:10:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:10:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1255 transitions. [2022-11-18 20:10:11,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256578947368421 [2022-11-18 20:10:11,299 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1255 transitions. [2022-11-18 20:10:11,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1255 transitions. [2022-11-18 20:10:11,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:11,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1255 transitions. [2022-11-18 20:10:11,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:11,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:11,305 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:11,306 INFO L175 Difference]: Start difference. First operand has 392 places, 358 transitions, 1036 flow. Second operand 4 states and 1255 transitions. [2022-11-18 20:10:11,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 357 transitions, 1068 flow [2022-11-18 20:10:11,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 357 transitions, 1022 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:10:11,315 INFO L231 Difference]: Finished difference. Result has 376 places, 357 transitions, 996 flow [2022-11-18 20:10:11,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=996, PETRI_PLACES=376, PETRI_TRANSITIONS=357} [2022-11-18 20:10:11,316 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 51 predicate places. [2022-11-18 20:10:11,316 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 357 transitions, 996 flow [2022-11-18 20:10:11,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 313.2) internal successors, (1566), 5 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:11,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:11,317 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:11,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:11,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:10:11,524 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:11,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:11,524 INFO L85 PathProgramCache]: Analyzing trace with hash -630712475, now seen corresponding path program 1 times [2022-11-18 20:10:11,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:11,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729102167] [2022-11-18 20:10:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:11,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:12,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:12,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729102167] [2022-11-18 20:10:12,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729102167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:12,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:12,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:10:12,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586771244] [2022-11-18 20:10:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:12,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:10:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:12,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:10:12,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:10:12,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 380 [2022-11-18 20:10:12,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 357 transitions, 996 flow. Second operand has 11 states, 11 states have (on average 267.3636363636364) internal successors, (2941), 11 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:12,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:12,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 380 [2022-11-18 20:10:12,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:22,013 INFO L130 PetriNetUnfolder]: 12171/46062 cut-off events. [2022-11-18 20:10:22,013 INFO L131 PetriNetUnfolder]: For 782/793 co-relation queries the response was YES. [2022-11-18 20:10:22,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64256 conditions, 46062 events. 12171/46062 cut-off events. For 782/793 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 645557 event pairs, 2111 based on Foata normal form. 1/40203 useless extension candidates. Maximal degree in co-relation 63989. Up to 9013 conditions per place. [2022-11-18 20:10:22,582 INFO L137 encePairwiseOnDemand]: 360/380 looper letters, 342 selfloop transitions, 71 changer transitions 0/709 dead transitions. [2022-11-18 20:10:22,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 709 transitions, 2607 flow [2022-11-18 20:10:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:10:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-18 20:10:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6785 transitions. [2022-11-18 20:10:22,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7439692982456141 [2022-11-18 20:10:22,592 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6785 transitions. [2022-11-18 20:10:22,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6785 transitions. [2022-11-18 20:10:22,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:22,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6785 transitions. [2022-11-18 20:10:22,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 282.7083333333333) internal successors, (6785), 24 states have internal predecessors, (6785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:22,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 380.0) internal successors, (9500), 25 states have internal predecessors, (9500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:22,615 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 380.0) internal successors, (9500), 25 states have internal predecessors, (9500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:22,615 INFO L175 Difference]: Start difference. First operand has 376 places, 357 transitions, 996 flow. Second operand 24 states and 6785 transitions. [2022-11-18 20:10:22,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 709 transitions, 2607 flow [2022-11-18 20:10:22,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 709 transitions, 2597 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:22,634 INFO L231 Difference]: Finished difference. Result has 414 places, 443 transitions, 1554 flow [2022-11-18 20:10:22,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1554, PETRI_PLACES=414, PETRI_TRANSITIONS=443} [2022-11-18 20:10:22,636 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 89 predicate places. [2022-11-18 20:10:22,636 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 443 transitions, 1554 flow [2022-11-18 20:10:22,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 267.3636363636364) internal successors, (2941), 11 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:22,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:22,637 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:22,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:10:22,637 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:22,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash -954203115, now seen corresponding path program 1 times [2022-11-18 20:10:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:22,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930211205] [2022-11-18 20:10:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:22,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:22,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930211205] [2022-11-18 20:10:22,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930211205] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:22,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853028136] [2022-11-18 20:10:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:22,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:22,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:22,760 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:10:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:22,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:10:22,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-11-18 20:10:22,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:10:22,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853028136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:22,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:10:22,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-18 20:10:22,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448978531] [2022-11-18 20:10:22,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:22,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:10:22,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:22,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:10:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:10:22,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 380 [2022-11-18 20:10:22,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 443 transitions, 1554 flow. Second operand has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:22,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:22,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 380 [2022-11-18 20:10:22,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:24,797 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1318] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_7| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of2ForFork0_thidvar0_4) InVars {t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} AuxVars[] AssignedVars[][383], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread2of2ForFork0NotInUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 20:10:24,797 INFO L383 tUnfolder$Statistics]: this new event has 225 ancestors and is cut-off event [2022-11-18 20:10:24,798 INFO L386 tUnfolder$Statistics]: existing Event has 213 ancestors and is cut-off event [2022-11-18 20:10:24,798 INFO L386 tUnfolder$Statistics]: existing Event has 183 ancestors and is cut-off event [2022-11-18 20:10:24,798 INFO L386 tUnfolder$Statistics]: existing Event has 213 ancestors and is cut-off event [2022-11-18 20:10:25,134 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1318] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_7| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of2ForFork0_thidvar0_4) InVars {t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} AuxVars[] AssignedVars[][383], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), 20#t_funENTRYtrue, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0InUse, Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 20:10:25,135 INFO L383 tUnfolder$Statistics]: this new event has 237 ancestors and is cut-off event [2022-11-18 20:10:25,135 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 20:10:25,135 INFO L386 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2022-11-18 20:10:25,136 INFO L386 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2022-11-18 20:10:25,314 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1319] t_funEXIT-->L958-5: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][416], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread2of2ForFork0NotInUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 20:10:25,314 INFO L383 tUnfolder$Statistics]: this new event has 252 ancestors and is cut-off event [2022-11-18 20:10:25,314 INFO L386 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-11-18 20:10:25,314 INFO L386 tUnfolder$Statistics]: existing Event has 210 ancestors and is cut-off event [2022-11-18 20:10:25,315 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 20:10:25,338 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1319] t_funEXIT-->L958-5: Formula: (= v_t_funThread2of2ForFork0_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_9| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) InVars {ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_9|, t_funThread2of2ForFork0_thidvar0=v_t_funThread2of2ForFork0_thidvar0_4} AuxVars[] AssignedVars[][416], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread1of2ForFork0InUse, t_funThread2of2ForFork0NotInUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 97#L941-6true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 20:10:25,338 INFO L383 tUnfolder$Statistics]: this new event has 254 ancestors and is cut-off event [2022-11-18 20:10:25,338 INFO L386 tUnfolder$Statistics]: existing Event has 242 ancestors and is cut-off event [2022-11-18 20:10:25,339 INFO L386 tUnfolder$Statistics]: existing Event has 212 ancestors and is cut-off event [2022-11-18 20:10:25,339 INFO L386 tUnfolder$Statistics]: existing Event has 254 ancestors and is cut-off event [2022-11-18 20:10:25,376 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1318] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem58#1_7| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of2ForFork0_thidvar0_4) InVars {t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} OutVars{t_funThread1of2ForFork0_thidvar0=v_t_funThread1of2ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem58#1=|v_ULTIMATE.start_main_#t~mem58#1_7|} AuxVars[] AssignedVars[][383], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, t_funThread1of2ForFork0NotInUse, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0InUse, Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 232#L941-10true, 132#L958-5true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 20:10:25,376 INFO L383 tUnfolder$Statistics]: this new event has 258 ancestors and is cut-off event [2022-11-18 20:10:25,376 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-18 20:10:25,376 INFO L386 tUnfolder$Statistics]: existing Event has 246 ancestors and is cut-off event [2022-11-18 20:10:25,376 INFO L386 tUnfolder$Statistics]: existing Event has 246 ancestors and is cut-off event [2022-11-18 20:10:25,436 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1160] L946-4-->L946-5: Formula: (and (= |v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset_1| (+ (* |v_t_funThread1of2ForFork0_~i~0#1_9| 28) |v_~#cache~0.offset_11|)) (= |v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base_1| |v_~#cache~0.base_12|)) InVars {~#cache~0.offset=|v_~#cache~0.offset_11|, ~#cache~0.base=|v_~#cache~0.base_12|, t_funThread1of2ForFork0_~i~0#1=|v_t_funThread1of2ForFork0_~i~0#1_9|} OutVars{~#cache~0.offset=|v_~#cache~0.offset_11|, ~#cache~0.base=|v_~#cache~0.base_12|, t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base=|v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base_1|, t_funThread1of2ForFork0_~i~0#1=|v_t_funThread1of2ForFork0_~i~0#1_9|, t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset=|v_t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset_1|} AuxVars[] AssignedVars[t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.offset, t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base][201], [Black: 764#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1069#(< |ULTIMATE.start_main_~i~1#1| 9), 338#true, 1218#true, Black: 1234#(<= |ULTIMATE.start_main_~i~1#1| 7), t_funThread1of2ForFork0InUse, Black: 1623#(< |ULTIMATE.start_main_~i~1#1| 9), t_funThread2of2ForFork0InUse, Black: 1606#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 330#(= |ULTIMATE.start_main_~i~1#1| 0), 2234#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1)), 2299#true, 181#L946-5true, 280#L959true, Black: 466#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 634#(< |ULTIMATE.start_main_~i~1#1| 10), 232#L941-10true, 756#true, 462#true, Black: 739#(= |ULTIMATE.start_main_~i~3#1| 0), Black: 2247#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 740#(= 0 |ULTIMATE.start_main_#t~post43#1|), Black: 2257#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 742#(and (= 0 |ULTIMATE.start_main_#t~post43#1|) (= |ULTIMATE.start_main_~i~3#1| 0)), Black: 2273#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2251#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), 747#true, Black: 2243#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2265#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2249#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= (select (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of2ForFork0_cache_entry_addref_~entry#1.offset|) 0) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2235#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2245#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2259#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2271#(and (= 3 |~#cache~0.base|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2263#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|)), Black: 2269#(and (= 3 |~#cache~0.base|) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2279#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2255#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|)) (= |t_funThread1of2ForFork0_cache_entry_addref_#t~post35#1| 0)), Black: 2253#(and (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of2ForFork0_cache_entry_addref_#t~mem34#1|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#cache~0.base|)) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 2261#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |t_funThread1of2ForFork0_cache_entry_addref_#in~entry#1.base|)) (= 3 |~#cache~0.base|) (= (select |#valid| 3) 1) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#cache~0.base|))), Black: 1092#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 1052#(< |ULTIMATE.start_main_~i~1#1| 10)]) [2022-11-18 20:10:25,436 INFO L383 tUnfolder$Statistics]: this new event has 247 ancestors and is cut-off event [2022-11-18 20:10:25,436 INFO L386 tUnfolder$Statistics]: existing Event has 247 ancestors and is cut-off event [2022-11-18 20:10:25,436 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2022-11-18 20:10:25,436 INFO L386 tUnfolder$Statistics]: existing Event has 235 ancestors and is cut-off event [2022-11-18 20:10:25,473 INFO L130 PetriNetUnfolder]: 671/7942 cut-off events. [2022-11-18 20:10:25,473 INFO L131 PetriNetUnfolder]: For 3660/3837 co-relation queries the response was YES. [2022-11-18 20:10:25,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10841 conditions, 7942 events. 671/7942 cut-off events. For 3660/3837 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 88552 event pairs, 89 based on Foata normal form. 16/6896 useless extension candidates. Maximal degree in co-relation 10639. Up to 257 conditions per place. [2022-11-18 20:10:25,609 INFO L137 encePairwiseOnDemand]: 377/380 looper letters, 14 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-11-18 20:10:25,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 447 transitions, 1594 flow [2022-11-18 20:10:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:10:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:10:25,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2022-11-18 20:10:25,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8412280701754385 [2022-11-18 20:10:25,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2022-11-18 20:10:25,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2022-11-18 20:10:25,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:25,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2022-11-18 20:10:25,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:25,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:25,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:25,616 INFO L175 Difference]: Start difference. First operand has 414 places, 443 transitions, 1554 flow. Second operand 3 states and 959 transitions. [2022-11-18 20:10:25,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 447 transitions, 1594 flow [2022-11-18 20:10:25,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 447 transitions, 1593 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:10:25,659 INFO L231 Difference]: Finished difference. Result has 416 places, 444 transitions, 1565 flow [2022-11-18 20:10:25,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=1553, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1565, PETRI_PLACES=416, PETRI_TRANSITIONS=444} [2022-11-18 20:10:25,660 INFO L288 CegarLoopForPetriNet]: 325 programPoint places, 91 predicate places. [2022-11-18 20:10:25,661 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 444 transitions, 1565 flow [2022-11-18 20:10:25,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:25,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:25,661 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:25,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:25,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:25,867 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 20:10:25,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:25,867 INFO L85 PathProgramCache]: Analyzing trace with hash 805498546, now seen corresponding path program 1 times [2022-11-18 20:10:25,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:25,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511650103] [2022-11-18 20:10:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:25,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:10:25,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:10:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:10:25,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:10:25,945 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:10:25,946 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2022-11-18 20:10:25,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 35 remaining) [2022-11-18 20:10:25,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 35 remaining) [2022-11-18 20:10:25,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 35 remaining) [2022-11-18 20:10:25,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 35 remaining) [2022-11-18 20:10:25,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 35 remaining) [2022-11-18 20:10:25,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 35 remaining) [2022-11-18 20:10:25,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 35 remaining) [2022-11-18 20:10:25,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 35 remaining) [2022-11-18 20:10:25,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 35 remaining) [2022-11-18 20:10:25,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 35 remaining) [2022-11-18 20:10:25,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 35 remaining) [2022-11-18 20:10:25,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 35 remaining) [2022-11-18 20:10:25,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 35 remaining) [2022-11-18 20:10:25,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 35 remaining) [2022-11-18 20:10:25,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 35 remaining) [2022-11-18 20:10:25,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 35 remaining) [2022-11-18 20:10:25,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 35 remaining) [2022-11-18 20:10:25,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 35 remaining) [2022-11-18 20:10:25,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 35 remaining) [2022-11-18 20:10:25,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 35 remaining) [2022-11-18 20:10:25,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 35 remaining) [2022-11-18 20:10:25,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 35 remaining) [2022-11-18 20:10:25,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 35 remaining) [2022-11-18 20:10:25,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 35 remaining) [2022-11-18 20:10:25,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 35 remaining) [2022-11-18 20:10:25,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 35 remaining) [2022-11-18 20:10:25,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 35 remaining) [2022-11-18 20:10:25,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 35 remaining) [2022-11-18 20:10:25,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 35 remaining) [2022-11-18 20:10:25,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 35 remaining) [2022-11-18 20:10:25,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 35 remaining) [2022-11-18 20:10:25,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 35 remaining) [2022-11-18 20:10:25,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 35 remaining) [2022-11-18 20:10:25,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 35 remaining) [2022-11-18 20:10:25,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:10:25,956 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:25,957 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:10:25,957 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:10:26,012 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:10:26,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 396 places, 464 transitions, 958 flow [2022-11-18 20:10:26,207 INFO L130 PetriNetUnfolder]: 168/1050 cut-off events. [2022-11-18 20:10:26,207 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:10:26,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 1050 events. 168/1050 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5992 event pairs, 1 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 739. Up to 16 conditions per place. [2022-11-18 20:10:26,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 396 places, 464 transitions, 958 flow [2022-11-18 20:10:26,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 396 places, 464 transitions, 958 flow [2022-11-18 20:10:26,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:10:26,405 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;@6f8a234e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:10:26,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-18 20:10:26,407 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-18 20:10:26,408 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:10:26,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:26,408 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] [2022-11-18 20:10:26,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:26,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1409541075, now seen corresponding path program 1 times [2022-11-18 20:10:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:26,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827612604] [2022-11-18 20:10:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:26,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:26,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827612604] [2022-11-18 20:10:26,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827612604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:26,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:26,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:26,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856754878] [2022-11-18 20:10:26,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:26,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:26,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:26,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:26,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:26,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:26,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 464 transitions, 958 flow. Second operand has 4 states, 4 states have (on average 380.5) internal successors, (1522), 4 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:26,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:26,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:26,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:26,674 INFO L130 PetriNetUnfolder]: 27/905 cut-off events. [2022-11-18 20:10:26,674 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-18 20:10:26,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 968 conditions, 905 events. 27/905 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5230 event pairs, 1 based on Foata normal form. 258/1041 useless extension candidates. Maximal degree in co-relation 662. Up to 28 conditions per place. [2022-11-18 20:10:26,697 INFO L137 encePairwiseOnDemand]: 395/464 looper letters, 21 selfloop transitions, 4 changer transitions 0/404 dead transitions. [2022-11-18 20:10:26,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 404 transitions, 888 flow [2022-11-18 20:10:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1986 transitions. [2022-11-18 20:10:26,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8560344827586207 [2022-11-18 20:10:26,701 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1986 transitions. [2022-11-18 20:10:26,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1986 transitions. [2022-11-18 20:10:26,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:26,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1986 transitions. [2022-11-18 20:10:26,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 397.2) internal successors, (1986), 5 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:26,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:26,709 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:26,709 INFO L175 Difference]: Start difference. First operand has 396 places, 464 transitions, 958 flow. Second operand 5 states and 1986 transitions. [2022-11-18 20:10:26,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 404 transitions, 888 flow [2022-11-18 20:10:26,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 404 transitions, 888 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:10:26,717 INFO L231 Difference]: Finished difference. Result has 398 places, 400 transitions, 856 flow [2022-11-18 20:10:26,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=856, PETRI_PLACES=398, PETRI_TRANSITIONS=400} [2022-11-18 20:10:26,718 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 2 predicate places. [2022-11-18 20:10:26,718 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 400 transitions, 856 flow [2022-11-18 20:10:26,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 380.5) internal successors, (1522), 4 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:26,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:26,719 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:26,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 20:10:26,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:26,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1391406635, now seen corresponding path program 1 times [2022-11-18 20:10:26,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:26,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913606000] [2022-11-18 20:10:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:26,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:10:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:26,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913606000] [2022-11-18 20:10:26,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913606000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:26,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:26,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:26,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208884795] [2022-11-18 20:10:26,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:26,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:26,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:26,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:26,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:26,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:26,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 400 transitions, 856 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:26,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:26,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:26,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:26,972 INFO L130 PetriNetUnfolder]: 27/904 cut-off events. [2022-11-18 20:10:26,972 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-11-18 20:10:26,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 904 events. 27/904 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5225 event pairs, 1 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 927. Up to 20 conditions per place. [2022-11-18 20:10:26,994 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 13 selfloop transitions, 8 changer transitions 0/400 dead transitions. [2022-11-18 20:10:26,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 400 transitions, 896 flow [2022-11-18 20:10:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:26,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1914 transitions. [2022-11-18 20:10:26,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 20:10:26,999 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1914 transitions. [2022-11-18 20:10:26,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1914 transitions. [2022-11-18 20:10:27,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:27,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1914 transitions. [2022-11-18 20:10:27,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 382.8) internal successors, (1914), 5 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,007 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,007 INFO L175 Difference]: Start difference. First operand has 398 places, 400 transitions, 856 flow. Second operand 5 states and 1914 transitions. [2022-11-18 20:10:27,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 400 transitions, 896 flow [2022-11-18 20:10:27,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 400 transitions, 894 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:10:27,017 INFO L231 Difference]: Finished difference. Result has 401 places, 400 transitions, 874 flow [2022-11-18 20:10:27,018 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=874, PETRI_PLACES=401, PETRI_TRANSITIONS=400} [2022-11-18 20:10:27,018 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 5 predicate places. [2022-11-18 20:10:27,018 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 400 transitions, 874 flow [2022-11-18 20:10:27,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:27,019 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:27,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 20:10:27,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:27,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:27,020 INFO L85 PathProgramCache]: Analyzing trace with hash -183931115, now seen corresponding path program 1 times [2022-11-18 20:10:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:27,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372859373] [2022-11-18 20:10:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:27,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:27,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:27,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372859373] [2022-11-18 20:10:27,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372859373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:27,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429059408] [2022-11-18 20:10:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:27,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:27,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:27,077 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:27,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:10:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:27,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:27,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:27,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:10:27,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429059408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:27,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:10:27,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 20:10:27,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269278577] [2022-11-18 20:10:27,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:27,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:10:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:10:27,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:10:27,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:27,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 400 transitions, 874 flow. Second operand has 5 states, 5 states have (on average 381.8) internal successors, (1909), 5 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:27,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:27,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:27,596 INFO L130 PetriNetUnfolder]: 27/903 cut-off events. [2022-11-18 20:10:27,596 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-18 20:10:27,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 903 events. 27/903 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5217 event pairs, 1 based on Foata normal form. 1/785 useless extension candidates. Maximal degree in co-relation 925. Up to 23 conditions per place. [2022-11-18 20:10:27,616 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 15 selfloop transitions, 5 changer transitions 0/399 dead transitions. [2022-11-18 20:10:27,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 399 transitions, 910 flow [2022-11-18 20:10:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:10:27,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:10:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1533 transitions. [2022-11-18 20:10:27,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8259698275862069 [2022-11-18 20:10:27,620 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1533 transitions. [2022-11-18 20:10:27,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1533 transitions. [2022-11-18 20:10:27,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:27,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1533 transitions. [2022-11-18 20:10:27,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 383.25) internal successors, (1533), 4 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,628 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,628 INFO L175 Difference]: Start difference. First operand has 401 places, 400 transitions, 874 flow. Second operand 4 states and 1533 transitions. [2022-11-18 20:10:27,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 399 transitions, 910 flow [2022-11-18 20:10:27,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 399 transitions, 898 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:27,637 INFO L231 Difference]: Finished difference. Result has 400 places, 399 transitions, 868 flow [2022-11-18 20:10:27,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=868, PETRI_PLACES=400, PETRI_TRANSITIONS=399} [2022-11-18 20:10:27,638 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 4 predicate places. [2022-11-18 20:10:27,638 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 399 transitions, 868 flow [2022-11-18 20:10:27,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 381.8) internal successors, (1909), 5 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:27,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:27,639 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] [2022-11-18 20:10:27,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:27,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 20:10:27,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1973769465, now seen corresponding path program 1 times [2022-11-18 20:10:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:27,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398553384] [2022-11-18 20:10:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:27,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:27,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398553384] [2022-11-18 20:10:27,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398553384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:27,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381136012] [2022-11-18 20:10:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:27,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:27,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:27,908 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:27,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:10:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:28,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:28,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:28,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:28,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381136012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:28,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:28,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:10:28,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860873249] [2022-11-18 20:10:28,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:28,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:28,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:28,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:28,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:28,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:28,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 399 transitions, 868 flow. Second operand has 10 states, 10 states have (on average 381.7) internal successors, (3817), 10 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:28,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:28,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:28,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:28,447 INFO L130 PetriNetUnfolder]: 27/911 cut-off events. [2022-11-18 20:10:28,448 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-18 20:10:28,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1013 conditions, 911 events. 27/911 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5197 event pairs, 1 based on Foata normal form. 2/794 useless extension candidates. Maximal degree in co-relation 915. Up to 20 conditions per place. [2022-11-18 20:10:28,472 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 22 selfloop transitions, 9 changer transitions 0/410 dead transitions. [2022-11-18 20:10:28,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 410 transitions, 968 flow [2022-11-18 20:10:28,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:10:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:10:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3444 transitions. [2022-11-18 20:10:28,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8247126436781609 [2022-11-18 20:10:28,481 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3444 transitions. [2022-11-18 20:10:28,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3444 transitions. [2022-11-18 20:10:28,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:28,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3444 transitions. [2022-11-18 20:10:28,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 382.6666666666667) internal successors, (3444), 9 states have internal predecessors, (3444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:28,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 464.0) internal successors, (4640), 10 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:28,508 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 464.0) internal successors, (4640), 10 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:28,508 INFO L175 Difference]: Start difference. First operand has 400 places, 399 transitions, 868 flow. Second operand 9 states and 3444 transitions. [2022-11-18 20:10:28,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 410 transitions, 968 flow [2022-11-18 20:10:28,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 410 transitions, 954 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:28,520 INFO L231 Difference]: Finished difference. Result has 409 places, 403 transitions, 914 flow [2022-11-18 20:10:28,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=914, PETRI_PLACES=409, PETRI_TRANSITIONS=403} [2022-11-18 20:10:28,522 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 13 predicate places. [2022-11-18 20:10:28,522 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 403 transitions, 914 flow [2022-11-18 20:10:28,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 381.7) internal successors, (3817), 10 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:28,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:28,524 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:28,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:28,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 20:10:28,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:28,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:28,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2104083655, now seen corresponding path program 2 times [2022-11-18 20:10:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:28,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845979505] [2022-11-18 20:10:28,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:28,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:10:28,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:28,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845979505] [2022-11-18 20:10:28,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845979505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:28,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:28,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:28,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052207889] [2022-11-18 20:10:28,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:28,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:28,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:28,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:28,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:28,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:28,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 403 transitions, 914 flow. Second operand has 4 states, 4 states have (on average 380.75) internal successors, (1523), 4 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:28,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:28,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:28,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:29,110 INFO L130 PetriNetUnfolder]: 23/792 cut-off events. [2022-11-18 20:10:29,110 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2022-11-18 20:10:29,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 792 events. 23/792 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4336 event pairs, 1 based on Foata normal form. 0/691 useless extension candidates. Maximal degree in co-relation 828. Up to 40 conditions per place. [2022-11-18 20:10:29,134 INFO L137 encePairwiseOnDemand]: 457/464 looper letters, 21 selfloop transitions, 4 changer transitions 0/410 dead transitions. [2022-11-18 20:10:29,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 410 transitions, 978 flow [2022-11-18 20:10:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:29,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1923 transitions. [2022-11-18 20:10:29,141 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8288793103448275 [2022-11-18 20:10:29,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1923 transitions. [2022-11-18 20:10:29,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1923 transitions. [2022-11-18 20:10:29,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:29,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1923 transitions. [2022-11-18 20:10:29,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 384.6) internal successors, (1923), 5 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,151 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,152 INFO L175 Difference]: Start difference. First operand has 409 places, 403 transitions, 914 flow. Second operand 5 states and 1923 transitions. [2022-11-18 20:10:29,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 410 transitions, 978 flow [2022-11-18 20:10:29,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 410 transitions, 962 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 20:10:29,162 INFO L231 Difference]: Finished difference. Result has 412 places, 406 transitions, 930 flow [2022-11-18 20:10:29,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=930, PETRI_PLACES=412, PETRI_TRANSITIONS=406} [2022-11-18 20:10:29,164 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 16 predicate places. [2022-11-18 20:10:29,164 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 406 transitions, 930 flow [2022-11-18 20:10:29,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 380.75) internal successors, (1523), 4 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:29,165 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:29,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 20:10:29,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:29,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:29,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2118770970, now seen corresponding path program 1 times [2022-11-18 20:10:29,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:29,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769163308] [2022-11-18 20:10:29,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:29,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:10:29,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769163308] [2022-11-18 20:10:29,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769163308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:29,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:29,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:10:29,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403104945] [2022-11-18 20:10:29,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:29,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:10:29,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:29,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:10:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:10:29,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:29,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 406 transitions, 930 flow. Second operand has 4 states, 4 states have (on average 382.75) internal successors, (1531), 4 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:29,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:29,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:29,549 INFO L130 PetriNetUnfolder]: 23/790 cut-off events. [2022-11-18 20:10:29,549 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2022-11-18 20:10:29,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 790 events. 23/790 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4306 event pairs, 1 based on Foata normal form. 2/698 useless extension candidates. Maximal degree in co-relation 838. Up to 20 conditions per place. [2022-11-18 20:10:29,566 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 13 selfloop transitions, 8 changer transitions 0/406 dead transitions. [2022-11-18 20:10:29,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 406 transitions, 970 flow [2022-11-18 20:10:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:10:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:10:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1914 transitions. [2022-11-18 20:10:29,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 20:10:29,571 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1914 transitions. [2022-11-18 20:10:29,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1914 transitions. [2022-11-18 20:10:29,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:29,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1914 transitions. [2022-11-18 20:10:29,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 382.8) internal successors, (1914), 5 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,579 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 464.0) internal successors, (2784), 6 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,579 INFO L175 Difference]: Start difference. First operand has 412 places, 406 transitions, 930 flow. Second operand 5 states and 1914 transitions. [2022-11-18 20:10:29,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 406 transitions, 970 flow [2022-11-18 20:10:29,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 406 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:10:29,588 INFO L231 Difference]: Finished difference. Result has 415 places, 406 transitions, 948 flow [2022-11-18 20:10:29,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=948, PETRI_PLACES=415, PETRI_TRANSITIONS=406} [2022-11-18 20:10:29,590 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 19 predicate places. [2022-11-18 20:10:29,590 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 406 transitions, 948 flow [2022-11-18 20:10:29,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.75) internal successors, (1531), 4 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:29,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:29,591 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:29,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 20:10:29,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:29,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1257392036, now seen corresponding path program 1 times [2022-11-18 20:10:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:29,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186186598] [2022-11-18 20:10:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:29,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:29,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:29,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186186598] [2022-11-18 20:10:29,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186186598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:29,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570228441] [2022-11-18 20:10:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:29,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:29,753 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:29,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:10:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:29,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:10:29,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:29,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:30,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570228441] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:30,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:30,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:10:30,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592857579] [2022-11-18 20:10:30,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:30,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:10:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:10:30,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:10:30,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:30,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 406 transitions, 948 flow. Second operand has 18 states, 18 states have (on average 382.1111111111111) internal successors, (6878), 18 states have internal predecessors, (6878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:30,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:30,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:30,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:30,471 INFO L130 PetriNetUnfolder]: 23/818 cut-off events. [2022-11-18 20:10:30,471 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-11-18 20:10:30,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 818 events. 23/818 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4307 event pairs, 1 based on Foata normal form. 4/728 useless extension candidates. Maximal degree in co-relation 828. Up to 20 conditions per place. [2022-11-18 20:10:30,486 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 38 selfloop transitions, 21 changer transitions 0/441 dead transitions. [2022-11-18 20:10:30,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 441 transitions, 1220 flow [2022-11-18 20:10:30,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:10:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:10:30,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8022 transitions. [2022-11-18 20:10:30,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8232758620689655 [2022-11-18 20:10:30,501 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8022 transitions. [2022-11-18 20:10:30,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8022 transitions. [2022-11-18 20:10:30,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:30,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8022 transitions. [2022-11-18 20:10:30,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 382.0) internal successors, (8022), 21 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:30,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 464.0) internal successors, (10208), 22 states have internal predecessors, (10208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:30,525 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 464.0) internal successors, (10208), 22 states have internal predecessors, (10208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:30,525 INFO L175 Difference]: Start difference. First operand has 415 places, 406 transitions, 948 flow. Second operand 21 states and 8022 transitions. [2022-11-18 20:10:30,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 441 transitions, 1220 flow [2022-11-18 20:10:30,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 441 transitions, 1208 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:10:30,534 INFO L231 Difference]: Finished difference. Result has 437 places, 419 transitions, 1092 flow [2022-11-18 20:10:30,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1092, PETRI_PLACES=437, PETRI_TRANSITIONS=419} [2022-11-18 20:10:30,536 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 41 predicate places. [2022-11-18 20:10:30,536 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 419 transitions, 1092 flow [2022-11-18 20:10:30,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 382.1111111111111) internal successors, (6878), 18 states have internal predecessors, (6878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:30,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:30,538 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:30,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:30,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 20:10:30,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:30,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:30,743 INFO L85 PathProgramCache]: Analyzing trace with hash -454429660, now seen corresponding path program 2 times [2022-11-18 20:10:30,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:30,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478355876] [2022-11-18 20:10:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:31,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:31,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478355876] [2022-11-18 20:10:31,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478355876] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:31,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819634859] [2022-11-18 20:10:31,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:10:31,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:31,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:31,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:31,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:10:31,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:10:31,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:31,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:10:31,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:31,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:10:31,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819634859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:10:31,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:10:31,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:10:31,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124630198] [2022-11-18 20:10:31,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:10:31,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:10:31,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:10:31,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:10:31,555 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:31,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 419 transitions, 1092 flow. Second operand has 23 states, 23 states have (on average 382.3478260869565) internal successors, (8794), 23 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:31,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:31,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:31,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:32,145 INFO L130 PetriNetUnfolder]: 23/839 cut-off events. [2022-11-18 20:10:32,145 INFO L131 PetriNetUnfolder]: For 274/274 co-relation queries the response was YES. [2022-11-18 20:10:32,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 839 events. 23/839 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4307 event pairs, 1 based on Foata normal form. 3/748 useless extension candidates. Maximal degree in co-relation 828. Up to 20 conditions per place. [2022-11-18 20:10:32,158 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 50 selfloop transitions, 30 changer transitions 0/462 dead transitions. [2022-11-18 20:10:32,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 462 transitions, 1462 flow [2022-11-18 20:10:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:10:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:10:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11453 transitions. [2022-11-18 20:10:32,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8227729885057471 [2022-11-18 20:10:32,176 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 11453 transitions. [2022-11-18 20:10:32,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 11453 transitions. [2022-11-18 20:10:32,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:32,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 11453 transitions. [2022-11-18 20:10:32,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 381.76666666666665) internal successors, (11453), 30 states have internal predecessors, (11453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:32,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 464.0) internal successors, (14384), 31 states have internal predecessors, (14384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:32,209 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 464.0) internal successors, (14384), 31 states have internal predecessors, (14384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:32,209 INFO L175 Difference]: Start difference. First operand has 437 places, 419 transitions, 1092 flow. Second operand 30 states and 11453 transitions. [2022-11-18 20:10:32,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 462 transitions, 1462 flow [2022-11-18 20:10:32,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 462 transitions, 1382 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 20:10:32,219 INFO L231 Difference]: Finished difference. Result has 462 places, 429 transitions, 1190 flow [2022-11-18 20:10:32,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=462, PETRI_TRANSITIONS=429} [2022-11-18 20:10:32,221 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 66 predicate places. [2022-11-18 20:10:32,221 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 429 transitions, 1190 flow [2022-11-18 20:10:32,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 382.3478260869565) internal successors, (8794), 23 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:32,223 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:32,223 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:32,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:32,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 20:10:32,429 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:32,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:32,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2122892894, now seen corresponding path program 3 times [2022-11-18 20:10:32,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:32,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518172046] [2022-11-18 20:10:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:32,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:32,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:32,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518172046] [2022-11-18 20:10:32,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518172046] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:10:32,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569189051] [2022-11-18 20:10:32,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:10:32,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:10:32,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:32,552 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:10:32,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:10:32,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 20:10:32,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:10:32,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:10:32,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:10:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:32,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:10:32,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569189051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:32,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:10:32,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 20:10:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124653232] [2022-11-18 20:10:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:32,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:10:32,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:10:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:10:32,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 464 [2022-11-18 20:10:32,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 429 transitions, 1190 flow. Second operand has 5 states, 5 states have (on average 382.2) internal successors, (1911), 5 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:32,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:32,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 464 [2022-11-18 20:10:32,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:33,003 INFO L130 PetriNetUnfolder]: 23/837 cut-off events. [2022-11-18 20:10:33,003 INFO L131 PetriNetUnfolder]: For 235/235 co-relation queries the response was YES. [2022-11-18 20:10:33,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 837 events. 23/837 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4303 event pairs, 1 based on Foata normal form. 2/745 useless extension candidates. Maximal degree in co-relation 846. Up to 30 conditions per place. [2022-11-18 20:10:33,026 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 15 selfloop transitions, 5 changer transitions 0/428 dead transitions. [2022-11-18 20:10:33,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 428 transitions, 1226 flow [2022-11-18 20:10:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:10:33,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:10:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1533 transitions. [2022-11-18 20:10:33,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8259698275862069 [2022-11-18 20:10:33,029 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1533 transitions. [2022-11-18 20:10:33,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1533 transitions. [2022-11-18 20:10:33,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:33,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1533 transitions. [2022-11-18 20:10:33,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 383.25) internal successors, (1533), 4 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:33,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:33,033 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 464.0) internal successors, (2320), 5 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:33,034 INFO L175 Difference]: Start difference. First operand has 462 places, 429 transitions, 1190 flow. Second operand 4 states and 1533 transitions. [2022-11-18 20:10:33,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 428 transitions, 1226 flow [2022-11-18 20:10:33,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 428 transitions, 1180 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:10:33,044 INFO L231 Difference]: Finished difference. Result has 446 places, 428 transitions, 1150 flow [2022-11-18 20:10:33,044 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1150, PETRI_PLACES=446, PETRI_TRANSITIONS=428} [2022-11-18 20:10:33,045 INFO L288 CegarLoopForPetriNet]: 396 programPoint places, 50 predicate places. [2022-11-18 20:10:33,045 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 428 transitions, 1150 flow [2022-11-18 20:10:33,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 382.2) internal successors, (1911), 5 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:33,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:33,046 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:33,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:10:33,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70dddfed-8ecf-42db-92c3-380b762c3bb3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 20:10:33,252 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 20:10:33,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash -133430329, now seen corresponding path program 1 times [2022-11-18 20:10:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:33,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081118679] [2022-11-18 20:10:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-18 20:10:33,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:33,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081118679] [2022-11-18 20:10:33,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081118679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:33,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:33,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:10:33,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649072042] [2022-11-18 20:10:33,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:33,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:10:33,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:33,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:10:33,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:10:33,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 464 [2022-11-18 20:10:33,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 428 transitions, 1150 flow. Second operand has 11 states, 11 states have (on average 330.3636363636364) internal successors, (3634), 11 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:10:33,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:33,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 464 [2022-11-18 20:10:33,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand