./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_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_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/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_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/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_ee0866e4-57ee-477f-8abe-53e939127f22/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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- 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 18:27:47,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:27:47,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:27:47,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:27:47,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:27:47,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:27:47,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:27:47,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:27:47,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:27:47,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:27:47,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:27:47,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:27:47,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:27:47,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:27:47,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:27:47,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:27:47,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:27:47,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:27:47,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:27:47,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:27:47,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:27:47,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:27:47,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:27:47,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:27:47,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:27:47,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:27:47,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:27:47,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:27:47,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:27:47,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:27:47,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:27:47,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:27:47,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:27:47,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:27:47,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:27:47,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:27:47,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:27:47,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:27:47,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:27:47,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:27:47,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:27:47,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 18:27:47,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:27:47,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:27:47,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:27:47,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:27:47,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:27:47,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:27:47,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:27:47,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:27:47,632 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:27:47,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:27:47,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:27:47,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:27:47,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:27:47,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:27:47,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:27:47,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:27:47,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:27:47,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:27:47,635 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:27:47,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:27:47,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:27:47,636 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:27:47,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:27:47,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:27:47,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:27:47,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:27:47,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:47,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:27:47,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:27:47,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:27:47,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:27:47,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:27:47,639 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:27:47,640 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:27:47,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:27:47,640 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_ee0866e4-57ee-477f-8abe-53e939127f22/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2022-11-18 18:27:47,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:27:48,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:27:48,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:27:48,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:27:48,029 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:27:48,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2022-11-18 18:27:48,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/data/14f2ead17/5b67d9cc3c5c48e3af9d0fcf5e470f3a/FLAG0f131c897 [2022-11-18 18:27:48,852 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:27:48,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2022-11-18 18:27:48,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/data/14f2ead17/5b67d9cc3c5c48e3af9d0fcf5e470f3a/FLAG0f131c897 [2022-11-18 18:27:49,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/data/14f2ead17/5b67d9cc3c5c48e3af9d0fcf5e470f3a [2022-11-18 18:27:49,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:27:49,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:27:49,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:49,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:27:49,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:27:49,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:49" (1/1) ... [2022-11-18 18:27:49,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d61ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:49, skipping insertion in model container [2022-11-18 18:27:49,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:27:49" (1/1) ... [2022-11-18 18:27:49,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:27:49,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:27:49,818 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_ee0866e4-57ee-477f-8abe-53e939127f22/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i[41323,41336] [2022-11-18 18:27:49,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:49,905 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:27:49,975 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_ee0866e4-57ee-477f-8abe-53e939127f22/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i[41323,41336] [2022-11-18 18:27:50,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:27:50,102 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:27:50,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50 WrapperNode [2022-11-18 18:27:50,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:27:50,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:50,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:27:50,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:27:50,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,213 INFO L138 Inliner]: procedures = 270, calls = 41, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 205 [2022-11-18 18:27:50,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:27:50,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:27:50,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:27:50,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:27:50,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:27:50,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:27:50,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:27:50,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:27:50,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (1/1) ... [2022-11-18 18:27:50,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:27:50,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:50,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:27:50,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:27:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:27:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:27:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:27:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:27:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:27:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:27:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 18:27:50,444 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 18:27:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:27:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:27:50,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:27:50,447 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 18:27:50,716 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:27:50,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:27:51,172 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:27:51,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:27:51,183 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-18 18:27:51,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:51 BoogieIcfgContainer [2022-11-18 18:27:51,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:27:51,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:27:51,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:27:51,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:27:51,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:27:49" (1/3) ... [2022-11-18 18:27:51,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146edad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:51, skipping insertion in model container [2022-11-18 18:27:51,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:27:50" (2/3) ... [2022-11-18 18:27:51,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146edad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:27:51, skipping insertion in model container [2022-11-18 18:27:51,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:27:51" (3/3) ... [2022-11-18 18:27:51,199 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2022-11-18 18:27:51,210 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:27:51,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:27:51,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-18 18:27:51,225 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:27:51,328 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 18:27:51,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 230 transitions, 468 flow [2022-11-18 18:27:51,514 INFO L130 PetriNetUnfolder]: 45/309 cut-off events. [2022-11-18 18:27:51,514 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-11-18 18:27:51,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 309 events. 45/309 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 993 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 172. Up to 8 conditions per place. [2022-11-18 18:27:51,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 230 transitions, 468 flow [2022-11-18 18:27:51,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 227 transitions, 462 flow [2022-11-18 18:27:51,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:51,553 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;@4b14221d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:51,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-11-18 18:27:51,560 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2022-11-18 18:27:51,560 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:27:51,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:51,561 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 18:27:51,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:51,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:51,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1462409241, now seen corresponding path program 1 times [2022-11-18 18:27:51,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:51,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482279762] [2022-11-18 18:27:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:51,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:51,973 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 18:27:51,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:51,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482279762] [2022-11-18 18:27:51,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482279762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:51,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:51,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:51,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904631572] [2022-11-18 18:27:51,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:51,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:52,033 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:52,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 227 transitions, 462 flow. Second operand has 4 states, 4 states have (on average 188.5) internal successors, (754), 4 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:52,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:52,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:52,201 INFO L130 PetriNetUnfolder]: 4/270 cut-off events. [2022-11-18 18:27:52,201 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-11-18 18:27:52,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 270 events. 4/270 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 771 event pairs, 0 based on Foata normal form. 39/277 useless extension candidates. Maximal degree in co-relation 147. Up to 15 conditions per place. [2022-11-18 18:27:52,208 INFO L137 encePairwiseOnDemand]: 196/230 looper letters, 17 selfloop transitions, 4 changer transitions 1/205 dead transitions. [2022-11-18 18:27:52,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 205 transitions, 460 flow [2022-11-18 18:27:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:52,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:27:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 987 transitions. [2022-11-18 18:27:52,239 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8582608695652174 [2022-11-18 18:27:52,240 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 987 transitions. [2022-11-18 18:27:52,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 987 transitions. [2022-11-18 18:27:52,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:52,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 987 transitions. [2022-11-18 18:27:52,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,271 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,273 INFO L175 Difference]: Start difference. First operand has 200 places, 227 transitions, 462 flow. Second operand 5 states and 987 transitions. [2022-11-18 18:27:52,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 205 transitions, 460 flow [2022-11-18 18:27:52,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 205 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:27:52,290 INFO L231 Difference]: Finished difference. Result has 205 places, 200 transitions, 434 flow [2022-11-18 18:27:52,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=434, PETRI_PLACES=205, PETRI_TRANSITIONS=200} [2022-11-18 18:27:52,300 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 5 predicate places. [2022-11-18 18:27:52,301 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 200 transitions, 434 flow [2022-11-18 18:27:52,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.5) internal successors, (754), 4 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:52,303 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 18:27:52,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:27:52,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:52,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:52,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1852448115, now seen corresponding path program 1 times [2022-11-18 18:27:52,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:52,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616405325] [2022-11-18 18:27:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:52,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:52,520 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 18:27:52,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:52,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616405325] [2022-11-18 18:27:52,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616405325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:52,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:52,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:52,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471472745] [2022-11-18 18:27:52,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:52,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:52,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:52,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:52,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 200 transitions, 434 flow. Second operand has 4 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:52,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:52,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:52,628 INFO L130 PetriNetUnfolder]: 4/268 cut-off events. [2022-11-18 18:27:52,628 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-18 18:27:52,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 268 events. 4/268 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 770 event pairs, 0 based on Foata normal form. 1/241 useless extension candidates. Maximal degree in co-relation 258. Up to 7 conditions per place. [2022-11-18 18:27:52,632 INFO L137 encePairwiseOnDemand]: 224/230 looper letters, 9 selfloop transitions, 8 changer transitions 0/200 dead transitions. [2022-11-18 18:27:52,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 200 transitions, 466 flow [2022-11-18 18:27:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:27:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 950 transitions. [2022-11-18 18:27:52,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2022-11-18 18:27:52,650 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 950 transitions. [2022-11-18 18:27:52,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 950 transitions. [2022-11-18 18:27:52,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:52,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 950 transitions. [2022-11-18 18:27:52,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,658 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,658 INFO L175 Difference]: Start difference. First operand has 205 places, 200 transitions, 434 flow. Second operand 5 states and 950 transitions. [2022-11-18 18:27:52,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 200 transitions, 466 flow [2022-11-18 18:27:52,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 200 transitions, 464 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:27:52,667 INFO L231 Difference]: Finished difference. Result has 207 places, 200 transitions, 452 flow [2022-11-18 18:27:52,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=207, PETRI_TRANSITIONS=200} [2022-11-18 18:27:52,684 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 7 predicate places. [2022-11-18 18:27:52,685 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 200 transitions, 452 flow [2022-11-18 18:27:52,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:52,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:52,686 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 18:27:52,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:27:52,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:52,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1591316130, now seen corresponding path program 1 times [2022-11-18 18:27:52,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:52,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651931050] [2022-11-18 18:27:52,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:52,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:52,886 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 18:27:52,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:52,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651931050] [2022-11-18 18:27:52,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651931050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:52,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010213868] [2022-11-18 18:27:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:52,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:52,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:52,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:27:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:53,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:27:53,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:53,107 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 18:27:53,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:27:53,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010213868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:53,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:27:53,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 18:27:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84847315] [2022-11-18 18:27:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:53,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:27:53,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:53,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:27:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:27:53,113 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:53,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 200 transitions, 452 flow. Second operand has 5 states, 5 states have (on average 189.8) internal successors, (949), 5 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:53,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:53,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:53,212 INFO L130 PetriNetUnfolder]: 4/267 cut-off events. [2022-11-18 18:27:53,212 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-11-18 18:27:53,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 267 events. 4/267 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 765 event pairs, 0 based on Foata normal form. 1/240 useless extension candidates. Maximal degree in co-relation 256. Up to 10 conditions per place. [2022-11-18 18:27:53,216 INFO L137 encePairwiseOnDemand]: 226/230 looper letters, 11 selfloop transitions, 5 changer transitions 0/199 dead transitions. [2022-11-18 18:27:53,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 199 transitions, 480 flow [2022-11-18 18:27:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 18:27:53,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 761 transitions. [2022-11-18 18:27:53,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8271739130434783 [2022-11-18 18:27:53,220 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 761 transitions. [2022-11-18 18:27:53,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 761 transitions. [2022-11-18 18:27:53,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:53,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 761 transitions. [2022-11-18 18:27:53,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,228 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,228 INFO L175 Difference]: Start difference. First operand has 207 places, 200 transitions, 452 flow. Second operand 4 states and 761 transitions. [2022-11-18 18:27:53,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 199 transitions, 480 flow [2022-11-18 18:27:53,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 199 transitions, 468 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:27:53,235 INFO L231 Difference]: Finished difference. Result has 206 places, 199 transitions, 446 flow [2022-11-18 18:27:53,236 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=446, PETRI_PLACES=206, PETRI_TRANSITIONS=199} [2022-11-18 18:27:53,237 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 6 predicate places. [2022-11-18 18:27:53,237 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 199 transitions, 446 flow [2022-11-18 18:27:53,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 189.8) internal successors, (949), 5 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,238 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:53,239 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:53,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:27:53,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:53,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:53,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1825407123, now seen corresponding path program 1 times [2022-11-18 18:27:53,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:53,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103788030] [2022-11-18 18:27:53,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:53,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:53,693 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 18:27:53,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:53,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103788030] [2022-11-18 18:27:53,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103788030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:53,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728028692] [2022-11-18 18:27:53,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:53,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:53,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:53,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:53,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:27:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:53,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:27:53,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:53,886 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 18:27:53,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:53,948 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 18:27:53,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728028692] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:53,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:53,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:27:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141528545] [2022-11-18 18:27:53,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:53,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:27:53,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:53,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:27:53,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:27:53,962 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:53,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 199 transitions, 446 flow. Second operand has 10 states, 10 states have (on average 189.7) internal successors, (1897), 10 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:53,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:53,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:53,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:54,132 INFO L130 PetriNetUnfolder]: 4/275 cut-off events. [2022-11-18 18:27:54,133 INFO L131 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2022-11-18 18:27:54,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 275 events. 4/275 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 755 event pairs, 0 based on Foata normal form. 2/249 useless extension candidates. Maximal degree in co-relation 246. Up to 7 conditions per place. [2022-11-18 18:27:54,136 INFO L137 encePairwiseOnDemand]: 224/230 looper letters, 18 selfloop transitions, 9 changer transitions 0/210 dead transitions. [2022-11-18 18:27:54,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 210 transitions, 538 flow [2022-11-18 18:27:54,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:27:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:27:54,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1712 transitions. [2022-11-18 18:27:54,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8270531400966183 [2022-11-18 18:27:54,143 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1712 transitions. [2022-11-18 18:27:54,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1712 transitions. [2022-11-18 18:27:54,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:54,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1712 transitions. [2022-11-18 18:27:54,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 190.22222222222223) internal successors, (1712), 9 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 230.0) internal successors, (2300), 10 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,157 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 230.0) internal successors, (2300), 10 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,157 INFO L175 Difference]: Start difference. First operand has 206 places, 199 transitions, 446 flow. Second operand 9 states and 1712 transitions. [2022-11-18 18:27:54,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 210 transitions, 538 flow [2022-11-18 18:27:54,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 210 transitions, 524 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:27:54,164 INFO L231 Difference]: Finished difference. Result has 215 places, 203 transitions, 492 flow [2022-11-18 18:27:54,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=492, PETRI_PLACES=215, PETRI_TRANSITIONS=203} [2022-11-18 18:27:54,166 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 15 predicate places. [2022-11-18 18:27:54,166 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 203 transitions, 492 flow [2022-11-18 18:27:54,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 189.7) internal successors, (1897), 10 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:54,168 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:54,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:27:54,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:54,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:54,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1830414829, now seen corresponding path program 2 times [2022-11-18 18:27:54,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:54,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176335678] [2022-11-18 18:27:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:54,572 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 18:27:54,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:54,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176335678] [2022-11-18 18:27:54,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176335678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:54,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:54,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302673115] [2022-11-18 18:27:54,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:54,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:54,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:54,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:54,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:54,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 203 transitions, 492 flow. Second operand has 4 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:54,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:54,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:54,662 INFO L130 PetriNetUnfolder]: 3/212 cut-off events. [2022-11-18 18:27:54,663 INFO L131 PetriNetUnfolder]: For 40/57 co-relation queries the response was YES. [2022-11-18 18:27:54,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 212 events. 3/212 cut-off events. For 40/57 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 389 event pairs, 0 based on Foata normal form. 3/197 useless extension candidates. Maximal degree in co-relation 195. Up to 7 conditions per place. [2022-11-18 18:27:54,665 INFO L137 encePairwiseOnDemand]: 223/230 looper letters, 10 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2022-11-18 18:27:54,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 203 transitions, 520 flow [2022-11-18 18:27:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:27:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 952 transitions. [2022-11-18 18:27:54,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8278260869565217 [2022-11-18 18:27:54,672 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 952 transitions. [2022-11-18 18:27:54,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 952 transitions. [2022-11-18 18:27:54,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:54,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 952 transitions. [2022-11-18 18:27:54,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 190.4) internal successors, (952), 5 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,679 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,679 INFO L175 Difference]: Start difference. First operand has 215 places, 203 transitions, 492 flow. Second operand 5 states and 952 transitions. [2022-11-18 18:27:54,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 203 transitions, 520 flow [2022-11-18 18:27:54,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 203 transitions, 504 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 18:27:54,691 INFO L231 Difference]: Finished difference. Result has 214 places, 201 transitions, 484 flow [2022-11-18 18:27:54,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=484, PETRI_PLACES=214, PETRI_TRANSITIONS=201} [2022-11-18 18:27:54,696 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 14 predicate places. [2022-11-18 18:27:54,696 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 201 transitions, 484 flow [2022-11-18 18:27:54,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:54,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:54,698 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:54,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:27:54,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 422358850, now seen corresponding path program 1 times [2022-11-18 18:27:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:54,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520146285] [2022-11-18 18:27:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:55,017 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 18:27:55,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:55,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520146285] [2022-11-18 18:27:55,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520146285] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:55,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064285225] [2022-11-18 18:27:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:55,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:55,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:55,021 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:55,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:27:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:55,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:27:55,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:55,280 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 18:27:55,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:55,463 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 18:27:55,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064285225] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:55,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:55,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 18:27:55,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857978002] [2022-11-18 18:27:55,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:55,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:27:55,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:27:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:27:55,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:55,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 201 transitions, 484 flow. Second operand has 18 states, 18 states have (on average 190.05555555555554) internal successors, (3421), 18 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:55,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:55,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:55,875 INFO L130 PetriNetUnfolder]: 3/240 cut-off events. [2022-11-18 18:27:55,875 INFO L131 PetriNetUnfolder]: For 59/60 co-relation queries the response was YES. [2022-11-18 18:27:55,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 240 events. 3/240 cut-off events. For 59/60 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 387 event pairs, 0 based on Foata normal form. 4/227 useless extension candidates. Maximal degree in co-relation 216. Up to 9 conditions per place. [2022-11-18 18:27:55,878 INFO L137 encePairwiseOnDemand]: 224/230 looper letters, 34 selfloop transitions, 21 changer transitions 0/236 dead transitions. [2022-11-18 18:27:55,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 236 transitions, 748 flow [2022-11-18 18:27:55,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:27:55,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 18:27:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3986 transitions. [2022-11-18 18:27:55,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8252587991718426 [2022-11-18 18:27:55,898 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3986 transitions. [2022-11-18 18:27:55,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3986 transitions. [2022-11-18 18:27:55,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:55,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3986 transitions. [2022-11-18 18:27:55,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 189.8095238095238) internal successors, (3986), 21 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 230.0) internal successors, (5060), 22 states have internal predecessors, (5060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,926 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 230.0) internal successors, (5060), 22 states have internal predecessors, (5060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,926 INFO L175 Difference]: Start difference. First operand has 214 places, 201 transitions, 484 flow. Second operand 21 states and 3986 transitions. [2022-11-18 18:27:55,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 236 transitions, 748 flow [2022-11-18 18:27:55,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 236 transitions, 740 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:27:55,937 INFO L231 Difference]: Finished difference. Result has 235 places, 214 transitions, 632 flow [2022-11-18 18:27:55,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=632, PETRI_PLACES=235, PETRI_TRANSITIONS=214} [2022-11-18 18:27:55,941 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 35 predicate places. [2022-11-18 18:27:55,941 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 214 transitions, 632 flow [2022-11-18 18:27:55,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 190.05555555555554) internal successors, (3421), 18 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:55,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:55,944 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:55,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 18:27:56,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:56,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:56,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1872758206, now seen corresponding path program 2 times [2022-11-18 18:27:56,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:56,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425103638] [2022-11-18 18:27:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:56,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:56,637 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 18:27:56,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:56,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425103638] [2022-11-18 18:27:56,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425103638] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:56,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949043674] [2022-11-18 18:27:56,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:27:56,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:56,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:56,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:56,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:27:56,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:27:56,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:27:56,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 18:27:56,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:56,943 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 18:27:56,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:57,257 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 18:27:57,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949043674] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:57,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:57,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 18:27:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501863406] [2022-11-18 18:27:57,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:57,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 18:27:57,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 18:27:57,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:27:57,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 230 [2022-11-18 18:27:57,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 214 transitions, 632 flow. Second operand has 23 states, 23 states have (on average 190.30434782608697) internal successors, (4377), 23 states have internal predecessors, (4377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:57,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 230 [2022-11-18 18:27:57,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:57,832 INFO L130 PetriNetUnfolder]: 3/261 cut-off events. [2022-11-18 18:27:57,833 INFO L131 PetriNetUnfolder]: For 226/227 co-relation queries the response was YES. [2022-11-18 18:27:57,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 261 events. 3/261 cut-off events. For 226/227 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 388 event pairs, 0 based on Foata normal form. 3/247 useless extension candidates. Maximal degree in co-relation 342. Up to 12 conditions per place. [2022-11-18 18:27:57,836 INFO L137 encePairwiseOnDemand]: 224/230 looper letters, 46 selfloop transitions, 30 changer transitions 0/257 dead transitions. [2022-11-18 18:27:57,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 257 transitions, 994 flow [2022-11-18 18:27:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 18:27:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 18:27:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5689 transitions. [2022-11-18 18:27:57,851 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8244927536231884 [2022-11-18 18:27:57,852 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 5689 transitions. [2022-11-18 18:27:57,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 5689 transitions. [2022-11-18 18:27:57,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:57,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 5689 transitions. [2022-11-18 18:27:57,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 189.63333333333333) internal successors, (5689), 30 states have internal predecessors, (5689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 230.0) internal successors, (7130), 31 states have internal predecessors, (7130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,906 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 230.0) internal successors, (7130), 31 states have internal predecessors, (7130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,906 INFO L175 Difference]: Start difference. First operand has 235 places, 214 transitions, 632 flow. Second operand 30 states and 5689 transitions. [2022-11-18 18:27:57,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 257 transitions, 994 flow [2022-11-18 18:27:57,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 257 transitions, 914 flow, removed 32 selfloop flow, removed 8 redundant places. [2022-11-18 18:27:57,915 INFO L231 Difference]: Finished difference. Result has 260 places, 224 transitions, 730 flow [2022-11-18 18:27:57,916 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=730, PETRI_PLACES=260, PETRI_TRANSITIONS=224} [2022-11-18 18:27:57,917 INFO L288 CegarLoopForPetriNet]: 200 programPoint places, 60 predicate places. [2022-11-18 18:27:57,917 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 224 transitions, 730 flow [2022-11-18 18:27:57,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 190.30434782608697) internal successors, (4377), 23 states have internal predecessors, (4377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:57,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:57,920 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:57,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:27:58,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 18:27:58,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-11-18 18:27:58,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash 641383990, now seen corresponding path program 3 times [2022-11-18 18:27:58,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090489862] [2022-11-18 18:27:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:27:58,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:27:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:27:58,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:27:58,254 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:27:58,256 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2022-11-18 18:27:58,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2022-11-18 18:27:58,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2022-11-18 18:27:58,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2022-11-18 18:27:58,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2022-11-18 18:27:58,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2022-11-18 18:27:58,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2022-11-18 18:27:58,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2022-11-18 18:27:58,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2022-11-18 18:27:58,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2022-11-18 18:27:58,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2022-11-18 18:27:58,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2022-11-18 18:27:58,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2022-11-18 18:27:58,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2022-11-18 18:27:58,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2022-11-18 18:27:58,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2022-11-18 18:27:58,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2022-11-18 18:27:58,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2022-11-18 18:27:58,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2022-11-18 18:27:58,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2022-11-18 18:27:58,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2022-11-18 18:27:58,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2022-11-18 18:27:58,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2022-11-18 18:27:58,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:27:58,269 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2022-11-18 18:27:58,272 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:27:58,272 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 18:27:58,334 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 18:27:58,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 316 transitions, 650 flow [2022-11-18 18:27:58,463 INFO L130 PetriNetUnfolder]: 75/511 cut-off events. [2022-11-18 18:27:58,464 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-18 18:27:58,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 511 events. 75/511 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2102 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 311. Up to 12 conditions per place. [2022-11-18 18:27:58,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 316 transitions, 650 flow [2022-11-18 18:27:58,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 316 transitions, 650 flow [2022-11-18 18:27:58,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:27:58,481 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;@4b14221d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:27:58,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-18 18:27:58,486 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2022-11-18 18:27:58,486 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:27:58,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:58,487 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 18:27:58,487 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 18:27:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash -361822251, now seen corresponding path program 1 times [2022-11-18 18:27:58,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923036543] [2022-11-18 18:27:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,538 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 18:27:58,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923036543] [2022-11-18 18:27:58,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923036543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:58,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:58,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:58,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101255293] [2022-11-18 18:27:58,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:58,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:58,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:27:58,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 316 transitions, 650 flow. Second operand has 4 states, 4 states have (on average 259.5) internal successors, (1038), 4 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:58,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:27:58,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:58,718 INFO L130 PetriNetUnfolder]: 9/447 cut-off events. [2022-11-18 18:27:58,719 INFO L131 PetriNetUnfolder]: For 18/22 co-relation queries the response was YES. [2022-11-18 18:27:58,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 447 events. 9/447 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1747 event pairs, 0 based on Foata normal form. 90/480 useless extension candidates. Maximal degree in co-relation 296. Up to 19 conditions per place. [2022-11-18 18:27:58,725 INFO L137 encePairwiseOnDemand]: 270/316 looper letters, 19 selfloop transitions, 4 changer transitions 1/281 dead transitions. [2022-11-18 18:27:58,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 281 transitions, 626 flow [2022-11-18 18:27:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:58,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:27:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1356 transitions. [2022-11-18 18:27:58,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8582278481012658 [2022-11-18 18:27:58,731 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1356 transitions. [2022-11-18 18:27:58,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1356 transitions. [2022-11-18 18:27:58,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:58,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1356 transitions. [2022-11-18 18:27:58,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 271.2) internal successors, (1356), 5 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,740 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,740 INFO L175 Difference]: Start difference. First operand has 276 places, 316 transitions, 650 flow. Second operand 5 states and 1356 transitions. [2022-11-18 18:27:58,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 281 transitions, 626 flow [2022-11-18 18:27:58,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 281 transitions, 626 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:27:58,747 INFO L231 Difference]: Finished difference. Result has 280 places, 276 transitions, 596 flow [2022-11-18 18:27:58,748 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=596, PETRI_PLACES=280, PETRI_TRANSITIONS=276} [2022-11-18 18:27:58,749 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 4 predicate places. [2022-11-18 18:27:58,749 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 276 transitions, 596 flow [2022-11-18 18:27:58,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 259.5) internal successors, (1038), 4 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:58,750 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 18:27:58,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:27:58,751 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 18:27:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,752 INFO L85 PathProgramCache]: Analyzing trace with hash -284589555, now seen corresponding path program 1 times [2022-11-18 18:27:58,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388880630] [2022-11-18 18:27:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:58,795 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 18:27:58,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:58,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388880630] [2022-11-18 18:27:58,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388880630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:58,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:27:58,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:27:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737761081] [2022-11-18 18:27:58,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:58,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:27:58,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:58,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:27:58,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:27:58,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:27:58,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 276 transitions, 596 flow. Second operand has 4 states, 4 states have (on average 261.25) internal successors, (1045), 4 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:58,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:27:58,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:58,940 INFO L130 PetriNetUnfolder]: 9/445 cut-off events. [2022-11-18 18:27:58,941 INFO L131 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2022-11-18 18:27:58,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 445 events. 9/445 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1743 event pairs, 0 based on Foata normal form. 1/393 useless extension candidates. Maximal degree in co-relation 446. Up to 11 conditions per place. [2022-11-18 18:27:58,948 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 11 selfloop transitions, 8 changer transitions 0/276 dead transitions. [2022-11-18 18:27:58,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 276 transitions, 632 flow [2022-11-18 18:27:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:27:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:27:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1307 transitions. [2022-11-18 18:27:58,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8272151898734177 [2022-11-18 18:27:58,953 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1307 transitions. [2022-11-18 18:27:58,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1307 transitions. [2022-11-18 18:27:58,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:58,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1307 transitions. [2022-11-18 18:27:58,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 261.4) internal successors, (1307), 5 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,961 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,962 INFO L175 Difference]: Start difference. First operand has 280 places, 276 transitions, 596 flow. Second operand 5 states and 1307 transitions. [2022-11-18 18:27:58,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 276 transitions, 632 flow [2022-11-18 18:27:58,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 276 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:27:58,969 INFO L231 Difference]: Finished difference. Result has 282 places, 276 transitions, 614 flow [2022-11-18 18:27:58,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=614, PETRI_PLACES=282, PETRI_TRANSITIONS=276} [2022-11-18 18:27:58,970 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 6 predicate places. [2022-11-18 18:27:58,970 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 276 transitions, 614 flow [2022-11-18 18:27:58,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 261.25) internal successors, (1045), 4 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:58,971 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:58,971 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 18:27:58,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:27:58,972 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 18:27:58,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:58,972 INFO L85 PathProgramCache]: Analyzing trace with hash -232340710, now seen corresponding path program 1 times [2022-11-18 18:27:58,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:58,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139620859] [2022-11-18 18:27:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:58,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,049 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 18:27:59,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139620859] [2022-11-18 18:27:59,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139620859] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:59,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952014686] [2022-11-18 18:27:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:59,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:59,051 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:59,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:27:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:27:59,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:59,193 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 18:27:59,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:27:59,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952014686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:27:59,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:27:59,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 18:27:59,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282786439] [2022-11-18 18:27:59,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:27:59,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:27:59,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:27:59,198 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:27:59,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 276 transitions, 614 flow. Second operand has 5 states, 5 states have (on average 260.8) internal successors, (1304), 5 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:59,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:27:59,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:59,317 INFO L130 PetriNetUnfolder]: 9/444 cut-off events. [2022-11-18 18:27:59,317 INFO L131 PetriNetUnfolder]: For 28/32 co-relation queries the response was YES. [2022-11-18 18:27:59,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 444 events. 9/444 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1732 event pairs, 0 based on Foata normal form. 1/392 useless extension candidates. Maximal degree in co-relation 444. Up to 14 conditions per place. [2022-11-18 18:27:59,323 INFO L137 encePairwiseOnDemand]: 312/316 looper letters, 13 selfloop transitions, 5 changer transitions 0/275 dead transitions. [2022-11-18 18:27:59,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 275 transitions, 646 flow [2022-11-18 18:27:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:27:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 18:27:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1047 transitions. [2022-11-18 18:27:59,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8283227848101266 [2022-11-18 18:27:59,327 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1047 transitions. [2022-11-18 18:27:59,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1047 transitions. [2022-11-18 18:27:59,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:59,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1047 transitions. [2022-11-18 18:27:59,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 261.75) internal successors, (1047), 4 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 316.0) internal successors, (1580), 5 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,333 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 316.0) internal successors, (1580), 5 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,333 INFO L175 Difference]: Start difference. First operand has 282 places, 276 transitions, 614 flow. Second operand 4 states and 1047 transitions. [2022-11-18 18:27:59,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 275 transitions, 646 flow [2022-11-18 18:27:59,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 275 transitions, 634 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:27:59,339 INFO L231 Difference]: Finished difference. Result has 281 places, 275 transitions, 608 flow [2022-11-18 18:27:59,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=608, PETRI_PLACES=281, PETRI_TRANSITIONS=275} [2022-11-18 18:27:59,340 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 5 predicate places. [2022-11-18 18:27:59,340 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 275 transitions, 608 flow [2022-11-18 18:27:59,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 260.8) internal successors, (1304), 5 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:27:59,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:27:59,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 18:27:59,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:59,547 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 18:27:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:27:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash -589345629, now seen corresponding path program 1 times [2022-11-18 18:27:59,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:27:59,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688367469] [2022-11-18 18:27:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:27:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,605 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 18:27:59,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:27:59,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688367469] [2022-11-18 18:27:59,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688367469] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:27:59,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046658236] [2022-11-18 18:27:59,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:27:59,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:27:59,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:27:59,607 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:27:59,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:27:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:27:59,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:27:59,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:27:59,763 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 18:27:59,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:27:59,803 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 18:27:59,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046658236] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:27:59,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:27:59,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:27:59,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473012282] [2022-11-18 18:27:59,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:27:59,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:27:59,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:27:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:27:59,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:27:59,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:27:59,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 275 transitions, 608 flow. Second operand has 10 states, 10 states have (on average 260.7) internal successors, (2607), 10 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:27:59,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:27:59,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:27:59,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:27:59,985 INFO L130 PetriNetUnfolder]: 9/452 cut-off events. [2022-11-18 18:27:59,986 INFO L131 PetriNetUnfolder]: For 34/38 co-relation queries the response was YES. [2022-11-18 18:27:59,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 452 events. 9/452 cut-off events. For 34/38 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1725 event pairs, 0 based on Foata normal form. 2/401 useless extension candidates. Maximal degree in co-relation 434. Up to 11 conditions per place. [2022-11-18 18:27:59,991 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 20 selfloop transitions, 9 changer transitions 0/286 dead transitions. [2022-11-18 18:27:59,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 286 transitions, 704 flow [2022-11-18 18:27:59,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:27:59,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:27:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2353 transitions. [2022-11-18 18:27:59,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8273558368495078 [2022-11-18 18:27:59,997 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2353 transitions. [2022-11-18 18:27:59,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2353 transitions. [2022-11-18 18:27:59,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:27:59,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2353 transitions. [2022-11-18 18:28:00,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 261.44444444444446) internal successors, (2353), 9 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 316.0) internal successors, (3160), 10 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,009 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 316.0) internal successors, (3160), 10 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,010 INFO L175 Difference]: Start difference. First operand has 281 places, 275 transitions, 608 flow. Second operand 9 states and 2353 transitions. [2022-11-18 18:28:00,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 286 transitions, 704 flow [2022-11-18 18:28:00,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 286 transitions, 690 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:28:00,015 INFO L231 Difference]: Finished difference. Result has 290 places, 279 transitions, 654 flow [2022-11-18 18:28:00,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=654, PETRI_PLACES=290, PETRI_TRANSITIONS=279} [2022-11-18 18:28:00,017 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 14 predicate places. [2022-11-18 18:28:00,017 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 279 transitions, 654 flow [2022-11-18 18:28:00,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 260.7) internal successors, (2607), 10 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:00,018 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:00,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:00,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:00,223 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 18:28:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:00,224 INFO L85 PathProgramCache]: Analyzing trace with hash -740237917, now seen corresponding path program 2 times [2022-11-18 18:28:00,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:00,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383675603] [2022-11-18 18:28:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,284 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 18:28:00,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:00,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383675603] [2022-11-18 18:28:00,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383675603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:00,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:00,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:28:00,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210541910] [2022-11-18 18:28:00,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:00,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:00,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:00,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:28:00,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:00,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 279 transitions, 654 flow. Second operand has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:00,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:00,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:00,431 INFO L130 PetriNetUnfolder]: 7/398 cut-off events. [2022-11-18 18:28:00,431 INFO L131 PetriNetUnfolder]: For 42/74 co-relation queries the response was YES. [2022-11-18 18:28:00,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 398 events. 7/398 cut-off events. For 42/74 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1370 event pairs, 0 based on Foata normal form. 3/357 useless extension candidates. Maximal degree in co-relation 402. Up to 21 conditions per place. [2022-11-18 18:28:00,438 INFO L137 encePairwiseOnDemand]: 309/316 looper letters, 19 selfloop transitions, 4 changer transitions 0/286 dead transitions. [2022-11-18 18:28:00,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 286 transitions, 714 flow [2022-11-18 18:28:00,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:00,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:28:00,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1316 transitions. [2022-11-18 18:28:00,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8329113924050633 [2022-11-18 18:28:00,442 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1316 transitions. [2022-11-18 18:28:00,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1316 transitions. [2022-11-18 18:28:00,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:00,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1316 transitions. [2022-11-18 18:28:00,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 263.2) internal successors, (1316), 5 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,450 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,450 INFO L175 Difference]: Start difference. First operand has 290 places, 279 transitions, 654 flow. Second operand 5 states and 1316 transitions. [2022-11-18 18:28:00,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 286 transitions, 714 flow [2022-11-18 18:28:00,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 286 transitions, 698 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 18:28:00,458 INFO L231 Difference]: Finished difference. Result has 293 places, 282 transitions, 670 flow [2022-11-18 18:28:00,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=670, PETRI_PLACES=293, PETRI_TRANSITIONS=282} [2022-11-18 18:28:00,459 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 17 predicate places. [2022-11-18 18:28:00,460 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 282 transitions, 670 flow [2022-11-18 18:28:00,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:00,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:00,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:00,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:28:00,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash -239359324, now seen corresponding path program 1 times [2022-11-18 18:28:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:00,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981670644] [2022-11-18 18:28:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,652 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:00,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981670644] [2022-11-18 18:28:00,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981670644] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:00,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927981258] [2022-11-18 18:28:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:00,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:00,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:00,655 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:00,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:28:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:00,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:28:00,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:00,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:01,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927981258] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:01,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:01,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 18:28:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71589319] [2022-11-18 18:28:01,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:01,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:28:01,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:01,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:28:01,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:28:01,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:01,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 282 transitions, 670 flow. Second operand has 18 states, 18 states have (on average 261.05555555555554) internal successors, (4699), 18 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:01,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:01,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:01,392 INFO L130 PetriNetUnfolder]: 7/426 cut-off events. [2022-11-18 18:28:01,392 INFO L131 PetriNetUnfolder]: For 73/77 co-relation queries the response was YES. [2022-11-18 18:28:01,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 426 events. 7/426 cut-off events. For 73/77 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1358 event pairs, 0 based on Foata normal form. 4/390 useless extension candidates. Maximal degree in co-relation 393. Up to 11 conditions per place. [2022-11-18 18:28:01,399 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 36 selfloop transitions, 21 changer transitions 0/317 dead transitions. [2022-11-18 18:28:01,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 317 transitions, 938 flow [2022-11-18 18:28:01,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:28:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 18:28:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5479 transitions. [2022-11-18 18:28:01,408 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256479807112719 [2022-11-18 18:28:01,408 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5479 transitions. [2022-11-18 18:28:01,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5479 transitions. [2022-11-18 18:28:01,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:01,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5479 transitions. [2022-11-18 18:28:01,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 260.9047619047619) internal successors, (5479), 21 states have internal predecessors, (5479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 316.0) internal successors, (6952), 22 states have internal predecessors, (6952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,434 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 316.0) internal successors, (6952), 22 states have internal predecessors, (6952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,435 INFO L175 Difference]: Start difference. First operand has 293 places, 282 transitions, 670 flow. Second operand 21 states and 5479 transitions. [2022-11-18 18:28:01,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 317 transitions, 938 flow [2022-11-18 18:28:01,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 317 transitions, 936 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:28:01,443 INFO L231 Difference]: Finished difference. Result has 317 places, 295 transitions, 824 flow [2022-11-18 18:28:01,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=824, PETRI_PLACES=317, PETRI_TRANSITIONS=295} [2022-11-18 18:28:01,444 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 41 predicate places. [2022-11-18 18:28:01,444 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 295 transitions, 824 flow [2022-11-18 18:28:01,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 261.05555555555554) internal successors, (4699), 18 states have internal predecessors, (4699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:01,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:01,447 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:28:01,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:01,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:01,653 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1430030500, now seen corresponding path program 2 times [2022-11-18 18:28:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:01,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790303132] [2022-11-18 18:28:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:01,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:02,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:02,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790303132] [2022-11-18 18:28:02,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790303132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:02,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150798773] [2022-11-18 18:28:02,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:02,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:02,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:02,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:02,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 18:28:02,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:28:02,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:02,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:28:02,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-18 18:28:02,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:02,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150798773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:02,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:02,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 18:28:02,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275125097] [2022-11-18 18:28:02,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:02,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:02,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:02,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:02,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:28:02,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 316 [2022-11-18 18:28:02,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 295 transitions, 824 flow. Second operand has 6 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:02,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 316 [2022-11-18 18:28:02,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:02,854 INFO L130 PetriNetUnfolder]: 39/881 cut-off events. [2022-11-18 18:28:02,854 INFO L131 PetriNetUnfolder]: For 228/251 co-relation queries the response was YES. [2022-11-18 18:28:02,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 881 events. 39/881 cut-off events. For 228/251 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5311 event pairs, 6 based on Foata normal form. 4/785 useless extension candidates. Maximal degree in co-relation 986. Up to 20 conditions per place. [2022-11-18 18:28:02,863 INFO L137 encePairwiseOnDemand]: 309/316 looper letters, 21 selfloop transitions, 6 changer transitions 0/304 dead transitions. [2022-11-18 18:28:02,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 304 transitions, 936 flow [2022-11-18 18:28:02,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:28:02,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:28:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1820 transitions. [2022-11-18 18:28:02,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8227848101265823 [2022-11-18 18:28:02,867 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1820 transitions. [2022-11-18 18:28:02,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1820 transitions. [2022-11-18 18:28:02,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:02,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1820 transitions. [2022-11-18 18:28:02,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 260.0) internal successors, (1820), 7 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 316.0) internal successors, (2528), 8 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,876 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 316.0) internal successors, (2528), 8 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,876 INFO L175 Difference]: Start difference. First operand has 317 places, 295 transitions, 824 flow. Second operand 7 states and 1820 transitions. [2022-11-18 18:28:02,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 304 transitions, 936 flow [2022-11-18 18:28:02,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 304 transitions, 880 flow, removed 20 selfloop flow, removed 8 redundant places. [2022-11-18 18:28:02,884 INFO L231 Difference]: Finished difference. Result has 314 places, 294 transitions, 778 flow [2022-11-18 18:28:02,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=778, PETRI_PLACES=314, PETRI_TRANSITIONS=294} [2022-11-18 18:28:02,885 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 38 predicate places. [2022-11-18 18:28:02,885 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 294 transitions, 778 flow [2022-11-18 18:28:02,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:02,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:02,887 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:02,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:03,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 18:28:03,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:03,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:03,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2066655228, now seen corresponding path program 1 times [2022-11-18 18:28:03,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:03,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975867092] [2022-11-18 18:28:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:03,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-18 18:28:03,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:03,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975867092] [2022-11-18 18:28:03,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975867092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:03,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:03,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:28:03,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455622878] [2022-11-18 18:28:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:03,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:28:03,180 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:03,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 294 transitions, 778 flow. Second operand has 4 states, 4 states have (on average 261.75) internal successors, (1047), 4 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:03,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:03,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:03,315 INFO L130 PetriNetUnfolder]: 7/424 cut-off events. [2022-11-18 18:28:03,315 INFO L131 PetriNetUnfolder]: For 86/116 co-relation queries the response was YES. [2022-11-18 18:28:03,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 424 events. 7/424 cut-off events. For 86/116 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1350 event pairs, 0 based on Foata normal form. 7/393 useless extension candidates. Maximal degree in co-relation 448. Up to 10 conditions per place. [2022-11-18 18:28:03,321 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 11 selfloop transitions, 8 changer transitions 0/294 dead transitions. [2022-11-18 18:28:03,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 294 transitions, 814 flow [2022-11-18 18:28:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:28:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1307 transitions. [2022-11-18 18:28:03,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8272151898734177 [2022-11-18 18:28:03,325 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1307 transitions. [2022-11-18 18:28:03,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1307 transitions. [2022-11-18 18:28:03,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:03,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1307 transitions. [2022-11-18 18:28:03,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 261.4) internal successors, (1307), 5 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,332 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 316.0) internal successors, (1896), 6 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,332 INFO L175 Difference]: Start difference. First operand has 314 places, 294 transitions, 778 flow. Second operand 5 states and 1307 transitions. [2022-11-18 18:28:03,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 294 transitions, 814 flow [2022-11-18 18:28:03,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 294 transitions, 802 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:28:03,340 INFO L231 Difference]: Finished difference. Result has 312 places, 294 transitions, 786 flow [2022-11-18 18:28:03,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=786, PETRI_PLACES=312, PETRI_TRANSITIONS=294} [2022-11-18 18:28:03,342 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 36 predicate places. [2022-11-18 18:28:03,342 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 294 transitions, 786 flow [2022-11-18 18:28:03,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 261.75) internal successors, (1047), 4 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:03,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:03,343 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:28:03,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:28:03,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1381273488, now seen corresponding path program 1 times [2022-11-18 18:28:03,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:03,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881673237] [2022-11-18 18:28:03,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:03,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:03,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:03,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881673237] [2022-11-18 18:28:03,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881673237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:03,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474865494] [2022-11-18 18:28:03,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:03,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:03,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:03,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 18:28:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:03,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 18:28:03,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:03,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:04,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474865494] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:04,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:04,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 18:28:04,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609801365] [2022-11-18 18:28:04,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:04,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 18:28:04,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:04,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 18:28:04,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:28:04,216 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:04,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 294 transitions, 786 flow. Second operand has 23 states, 23 states have (on average 261.30434782608694) internal successors, (6010), 23 states have internal predecessors, (6010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:04,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:04,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:04,761 INFO L130 PetriNetUnfolder]: 7/445 cut-off events. [2022-11-18 18:28:04,761 INFO L131 PetriNetUnfolder]: For 184/188 co-relation queries the response was YES. [2022-11-18 18:28:04,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 445 events. 7/445 cut-off events. For 184/188 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1347 event pairs, 0 based on Foata normal form. 3/409 useless extension candidates. Maximal degree in co-relation 483. Up to 12 conditions per place. [2022-11-18 18:28:04,768 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 48 selfloop transitions, 30 changer transitions 0/337 dead transitions. [2022-11-18 18:28:04,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 337 transitions, 1128 flow [2022-11-18 18:28:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 18:28:04,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 18:28:04,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7821 transitions. [2022-11-18 18:28:04,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-11-18 18:28:04,781 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7821 transitions. [2022-11-18 18:28:04,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7821 transitions. [2022-11-18 18:28:04,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:04,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7821 transitions. [2022-11-18 18:28:04,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 260.7) internal successors, (7821), 30 states have internal predecessors, (7821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 316.0) internal successors, (9796), 31 states have internal predecessors, (9796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,856 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 316.0) internal successors, (9796), 31 states have internal predecessors, (9796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,856 INFO L175 Difference]: Start difference. First operand has 312 places, 294 transitions, 786 flow. Second operand 30 states and 7821 transitions. [2022-11-18 18:28:04,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 337 transitions, 1128 flow [2022-11-18 18:28:04,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 337 transitions, 1116 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:28:04,865 INFO L231 Difference]: Finished difference. Result has 342 places, 304 transitions, 928 flow [2022-11-18 18:28:04,865 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=928, PETRI_PLACES=342, PETRI_TRANSITIONS=304} [2022-11-18 18:28:04,866 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 66 predicate places. [2022-11-18 18:28:04,866 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 304 transitions, 928 flow [2022-11-18 18:28:04,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 261.30434782608694) internal successors, (6010), 23 states have internal predecessors, (6010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:04,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:04,869 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, 1, 1, 1] [2022-11-18 18:28:04,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:05,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 18:28:05,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1274341688, now seen corresponding path program 2 times [2022-11-18 18:28:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:05,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431868688] [2022-11-18 18:28:05,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:05,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:05,200 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 18:28:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:05,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431868688] [2022-11-18 18:28:05,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431868688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:05,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:05,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:28:05,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439164455] [2022-11-18 18:28:05,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:05,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:28:05,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:05,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:28:05,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:28:05,204 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:05,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 304 transitions, 928 flow. Second operand has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:05,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:05,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:05,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:05,532 INFO L130 PetriNetUnfolder]: 36/1085 cut-off events. [2022-11-18 18:28:05,533 INFO L131 PetriNetUnfolder]: For 283/295 co-relation queries the response was YES. [2022-11-18 18:28:05,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422 conditions, 1085 events. 36/1085 cut-off events. For 283/295 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6782 event pairs, 6 based on Foata normal form. 0/969 useless extension candidates. Maximal degree in co-relation 1159. Up to 24 conditions per place. [2022-11-18 18:28:05,555 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 17 selfloop transitions, 5 changer transitions 0/311 dead transitions. [2022-11-18 18:28:05,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 311 transitions, 1018 flow [2022-11-18 18:28:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:28:05,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1571 transitions. [2022-11-18 18:28:05,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8285864978902954 [2022-11-18 18:28:05,559 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1571 transitions. [2022-11-18 18:28:05,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1571 transitions. [2022-11-18 18:28:05,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:05,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1571 transitions. [2022-11-18 18:28:05,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 261.8333333333333) internal successors, (1571), 6 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:05,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 316.0) internal successors, (2212), 7 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:05,567 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 316.0) internal successors, (2212), 7 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:05,567 INFO L175 Difference]: Start difference. First operand has 342 places, 304 transitions, 928 flow. Second operand 6 states and 1571 transitions. [2022-11-18 18:28:05,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 311 transitions, 1018 flow [2022-11-18 18:28:05,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 311 transitions, 972 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 18:28:05,577 INFO L231 Difference]: Finished difference. Result has 328 places, 303 transitions, 890 flow [2022-11-18 18:28:05,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=890, PETRI_PLACES=328, PETRI_TRANSITIONS=303} [2022-11-18 18:28:05,579 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 52 predicate places. [2022-11-18 18:28:05,579 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 303 transitions, 890 flow [2022-11-18 18:28:05,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:05,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:05,581 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:05,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:28:05,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:05,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:05,582 INFO L85 PathProgramCache]: Analyzing trace with hash -361493628, now seen corresponding path program 1 times [2022-11-18 18:28:05,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:05,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362544661] [2022-11-18 18:28:05,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:05,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:05,757 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 18:28:05,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:05,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362544661] [2022-11-18 18:28:05,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362544661] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:05,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068586639] [2022-11-18 18:28:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:05,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:05,764 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:05,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 18:28:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:05,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:28:05,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:05,994 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 18:28:05,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:05,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068586639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:05,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:05,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 18:28:05,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347012937] [2022-11-18 18:28:05,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:05,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:28:06,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:06,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 303 transitions, 890 flow. Second operand has 6 states, 6 states have (on average 260.6666666666667) internal successors, (1564), 6 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 18:28:06,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:06,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:06,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:06,196 INFO L130 PetriNetUnfolder]: 7/443 cut-off events. [2022-11-18 18:28:06,197 INFO L131 PetriNetUnfolder]: For 199/227 co-relation queries the response was YES. [2022-11-18 18:28:06,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 443 events. 7/443 cut-off events. For 199/227 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1334 event pairs, 0 based on Foata normal form. 6/411 useless extension candidates. Maximal degree in co-relation 524. Up to 13 conditions per place. [2022-11-18 18:28:06,204 INFO L137 encePairwiseOnDemand]: 311/316 looper letters, 15 selfloop transitions, 6 changer transitions 0/305 dead transitions. [2022-11-18 18:28:06,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 305 transitions, 934 flow [2022-11-18 18:28:06,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:28:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:28:06,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1828 transitions. [2022-11-18 18:28:06,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8264014466546112 [2022-11-18 18:28:06,220 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1828 transitions. [2022-11-18 18:28:06,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1828 transitions. [2022-11-18 18:28:06,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:06,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1828 transitions. [2022-11-18 18:28:06,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 261.14285714285717) internal successors, (1828), 7 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 316.0) internal successors, (2528), 8 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,229 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 316.0) internal successors, (2528), 8 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,229 INFO L175 Difference]: Start difference. First operand has 328 places, 303 transitions, 890 flow. Second operand 7 states and 1828 transitions. [2022-11-18 18:28:06,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 305 transitions, 934 flow [2022-11-18 18:28:06,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 305 transitions, 924 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:28:06,238 INFO L231 Difference]: Finished difference. Result has 328 places, 302 transitions, 888 flow [2022-11-18 18:28:06,239 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=888, PETRI_PLACES=328, PETRI_TRANSITIONS=302} [2022-11-18 18:28:06,239 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, 52 predicate places. [2022-11-18 18:28:06,240 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 302 transitions, 888 flow [2022-11-18 18:28:06,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.6666666666667) internal successors, (1564), 6 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 18:28:06,241 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:06,241 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, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:06,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-18 18:28:06,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:06,447 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:06,447 INFO L85 PathProgramCache]: Analyzing trace with hash 622050150, now seen corresponding path program 1 times [2022-11-18 18:28:06,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:06,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514296061] [2022-11-18 18:28:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:06,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:06,557 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 18:28:06,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514296061] [2022-11-18 18:28:06,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514296061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967526231] [2022-11-18 18:28:06,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:06,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:06,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:06,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:06,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 18:28:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:06,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:28:06,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:06,744 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 18:28:06,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:06,792 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 18:28:06,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967526231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:06,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:06,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:28:06,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320864670] [2022-11-18 18:28:06,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:06,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:28:06,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:06,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:28:06,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:06,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 316 [2022-11-18 18:28:06,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 302 transitions, 888 flow. Second operand has 10 states, 10 states have (on average 260.9) internal successors, (2609), 10 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:06,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 316 [2022-11-18 18:28:06,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:06,939 INFO L130 PetriNetUnfolder]: 3/275 cut-off events. [2022-11-18 18:28:06,939 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2022-11-18 18:28:06,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 275 events. 3/275 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 363 event pairs, 0 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 357. Up to 12 conditions per place. [2022-11-18 18:28:06,942 INFO L137 encePairwiseOnDemand]: 311/316 looper letters, 13 selfloop transitions, 7 changer transitions 0/236 dead transitions. [2022-11-18 18:28:06,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 236 transitions, 790 flow [2022-11-18 18:28:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:28:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:28:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2344 transitions. [2022-11-18 18:28:06,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8241912798874824 [2022-11-18 18:28:06,946 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2344 transitions. [2022-11-18 18:28:06,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2344 transitions. [2022-11-18 18:28:06,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:06,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2344 transitions. [2022-11-18 18:28:06,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 260.44444444444446) internal successors, (2344), 9 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 316.0) internal successors, (3160), 10 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,956 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 316.0) internal successors, (3160), 10 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,956 INFO L175 Difference]: Start difference. First operand has 328 places, 302 transitions, 888 flow. Second operand 9 states and 2344 transitions. [2022-11-18 18:28:06,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 236 transitions, 790 flow [2022-11-18 18:28:06,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 236 transitions, 773 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-18 18:28:06,964 INFO L231 Difference]: Finished difference. Result has 262 places, 231 transitions, 735 flow [2022-11-18 18:28:06,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=735, PETRI_PLACES=262, PETRI_TRANSITIONS=231} [2022-11-18 18:28:06,965 INFO L288 CegarLoopForPetriNet]: 276 programPoint places, -14 predicate places. [2022-11-18 18:28:06,966 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 231 transitions, 735 flow [2022-11-18 18:28:06,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 260.9) internal successors, (2609), 10 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:06,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:06,967 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:06,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:07,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:07,174 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-11-18 18:28:07,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1766104511, now seen corresponding path program 1 times [2022-11-18 18:28:07,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:07,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322577345] [2022-11-18 18:28:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:07,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:28:07,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:28:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:28:07,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:28:07,249 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:28:07,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2022-11-18 18:28:07,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2022-11-18 18:28:07,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2022-11-18 18:28:07,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2022-11-18 18:28:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2022-11-18 18:28:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2022-11-18 18:28:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2022-11-18 18:28:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2022-11-18 18:28:07,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2022-11-18 18:28:07,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2022-11-18 18:28:07,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2022-11-18 18:28:07,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2022-11-18 18:28:07,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2022-11-18 18:28:07,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2022-11-18 18:28:07,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2022-11-18 18:28:07,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2022-11-18 18:28:07,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2022-11-18 18:28:07,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2022-11-18 18:28:07,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2022-11-18 18:28:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2022-11-18 18:28:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2022-11-18 18:28:07,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2022-11-18 18:28:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2022-11-18 18:28:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2022-11-18 18:28:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2022-11-18 18:28:07,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2022-11-18 18:28:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2022-11-18 18:28:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2022-11-18 18:28:07,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2022-11-18 18:28:07,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:28:07,258 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:07,260 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:28:07,260 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 18:28:07,312 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 18:28:07,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 402 transitions, 834 flow [2022-11-18 18:28:07,472 INFO L130 PetriNetUnfolder]: 110/754 cut-off events. [2022-11-18 18:28:07,472 INFO L131 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES. [2022-11-18 18:28:07,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 754 events. 110/754 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3467 event pairs, 1 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 519. Up to 16 conditions per place. [2022-11-18 18:28:07,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 402 transitions, 834 flow [2022-11-18 18:28:07,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 402 transitions, 834 flow [2022-11-18 18:28:07,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:28:07,503 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;@4b14221d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:28:07,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-18 18:28:07,505 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2022-11-18 18:28:07,506 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:28:07,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:07,506 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 18:28:07,506 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 18:28:07,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:07,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2057305049, now seen corresponding path program 1 times [2022-11-18 18:28:07,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:07,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68927752] [2022-11-18 18:28:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:07,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:07,562 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 18:28:07,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:07,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68927752] [2022-11-18 18:28:07,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68927752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:07,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:07,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:28:07,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740783007] [2022-11-18 18:28:07,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:07,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:07,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:07,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:07,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:28:07,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:07,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 402 transitions, 834 flow. Second operand has 4 states, 4 states have (on average 330.5) internal successors, (1322), 4 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:07,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:07,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:07,782 INFO L130 PetriNetUnfolder]: 16/660 cut-off events. [2022-11-18 18:28:07,783 INFO L131 PetriNetUnfolder]: For 56/73 co-relation queries the response was YES. [2022-11-18 18:28:07,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 660 events. 16/660 cut-off events. For 56/73 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3023 event pairs, 1 based on Foata normal form. 208/781 useless extension candidates. Maximal degree in co-relation 480. Up to 28 conditions per place. [2022-11-18 18:28:07,797 INFO L137 encePairwiseOnDemand]: 344/402 looper letters, 21 selfloop transitions, 4 changer transitions 1/354 dead transitions. [2022-11-18 18:28:07,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 354 transitions, 788 flow [2022-11-18 18:28:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:28:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1725 transitions. [2022-11-18 18:28:07,801 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8582089552238806 [2022-11-18 18:28:07,801 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1725 transitions. [2022-11-18 18:28:07,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1725 transitions. [2022-11-18 18:28:07,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:07,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1725 transitions. [2022-11-18 18:28:07,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 345.0) internal successors, (1725), 5 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,813 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,813 INFO L175 Difference]: Start difference. First operand has 350 places, 402 transitions, 834 flow. Second operand 5 states and 1725 transitions. [2022-11-18 18:28:07,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 354 transitions, 788 flow [2022-11-18 18:28:07,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 354 transitions, 788 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:28:07,820 INFO L231 Difference]: Finished difference. Result has 353 places, 349 transitions, 754 flow [2022-11-18 18:28:07,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=754, PETRI_PLACES=353, PETRI_TRANSITIONS=349} [2022-11-18 18:28:07,822 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 3 predicate places. [2022-11-18 18:28:07,822 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 349 transitions, 754 flow [2022-11-18 18:28:07,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 330.5) internal successors, (1322), 4 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:07,823 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 18:28:07,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:28:07,824 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 18:28:07,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:07,836 INFO L85 PathProgramCache]: Analyzing trace with hash -355968947, now seen corresponding path program 1 times [2022-11-18 18:28:07,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:07,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116048634] [2022-11-18 18:28:07,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:07,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:07,869 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 18:28:07,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:07,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116048634] [2022-11-18 18:28:07,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116048634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:07,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:07,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:28:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108073383] [2022-11-18 18:28:07,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:07,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:07,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:07,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:07,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:28:07,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:07,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 349 transitions, 754 flow. Second operand has 4 states, 4 states have (on average 332.25) internal successors, (1329), 4 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:07,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:07,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:07,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:08,077 INFO L130 PetriNetUnfolder]: 16/658 cut-off events. [2022-11-18 18:28:08,077 INFO L131 PetriNetUnfolder]: For 59/76 co-relation queries the response was YES. [2022-11-18 18:28:08,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 658 events. 16/658 cut-off events. For 59/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3042 event pairs, 1 based on Foata normal form. 1/576 useless extension candidates. Maximal degree in co-relation 681. Up to 20 conditions per place. [2022-11-18 18:28:08,090 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 13 selfloop transitions, 8 changer transitions 0/349 dead transitions. [2022-11-18 18:28:08,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 349 transitions, 794 flow [2022-11-18 18:28:08,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:08,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:28:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1664 transitions. [2022-11-18 18:28:08,095 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8278606965174129 [2022-11-18 18:28:08,095 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1664 transitions. [2022-11-18 18:28:08,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1664 transitions. [2022-11-18 18:28:08,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:08,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1664 transitions. [2022-11-18 18:28:08,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 332.8) internal successors, (1664), 5 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,103 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,103 INFO L175 Difference]: Start difference. First operand has 353 places, 349 transitions, 754 flow. Second operand 5 states and 1664 transitions. [2022-11-18 18:28:08,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 349 transitions, 794 flow [2022-11-18 18:28:08,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 349 transitions, 792 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:28:08,111 INFO L231 Difference]: Finished difference. Result has 355 places, 349 transitions, 772 flow [2022-11-18 18:28:08,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=772, PETRI_PLACES=355, PETRI_TRANSITIONS=349} [2022-11-18 18:28:08,112 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 5 predicate places. [2022-11-18 18:28:08,112 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 349 transitions, 772 flow [2022-11-18 18:28:08,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 332.25) internal successors, (1329), 4 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:08,113 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 18:28:08,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 18:28:08,114 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 18:28:08,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1849865836, now seen corresponding path program 1 times [2022-11-18 18:28:08,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:08,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432117638] [2022-11-18 18:28:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:08,169 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 18:28:08,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:08,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432117638] [2022-11-18 18:28:08,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432117638] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:08,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790232708] [2022-11-18 18:28:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:08,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:08,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:08,176 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:08,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 18:28:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:08,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:28:08,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:08,336 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 18:28:08,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:08,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790232708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:08,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:08,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 18:28:08,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843234420] [2022-11-18 18:28:08,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:08,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:28:08,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:08,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:28:08,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:28:08,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:08,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 349 transitions, 772 flow. Second operand has 5 states, 5 states have (on average 331.8) internal successors, (1659), 5 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:08,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:08,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:08,554 INFO L130 PetriNetUnfolder]: 16/657 cut-off events. [2022-11-18 18:28:08,554 INFO L131 PetriNetUnfolder]: For 66/83 co-relation queries the response was YES. [2022-11-18 18:28:08,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 657 events. 16/657 cut-off events. For 66/83 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3040 event pairs, 1 based on Foata normal form. 1/575 useless extension candidates. Maximal degree in co-relation 679. Up to 23 conditions per place. [2022-11-18 18:28:08,567 INFO L137 encePairwiseOnDemand]: 398/402 looper letters, 15 selfloop transitions, 5 changer transitions 0/348 dead transitions. [2022-11-18 18:28:08,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 348 transitions, 808 flow [2022-11-18 18:28:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:28:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 18:28:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1333 transitions. [2022-11-18 18:28:08,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8289800995024875 [2022-11-18 18:28:08,572 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1333 transitions. [2022-11-18 18:28:08,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1333 transitions. [2022-11-18 18:28:08,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:08,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1333 transitions. [2022-11-18 18:28:08,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 333.25) internal successors, (1333), 4 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 402.0) internal successors, (2010), 5 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,580 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 402.0) internal successors, (2010), 5 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,581 INFO L175 Difference]: Start difference. First operand has 355 places, 349 transitions, 772 flow. Second operand 4 states and 1333 transitions. [2022-11-18 18:28:08,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 348 transitions, 808 flow [2022-11-18 18:28:08,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 348 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:28:08,588 INFO L231 Difference]: Finished difference. Result has 354 places, 348 transitions, 766 flow [2022-11-18 18:28:08,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=766, PETRI_PLACES=354, PETRI_TRANSITIONS=348} [2022-11-18 18:28:08,589 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 4 predicate places. [2022-11-18 18:28:08,589 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 348 transitions, 766 flow [2022-11-18 18:28:08,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 331.8) internal successors, (1659), 5 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:08,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:08,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:08,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:08,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 18:28:08,797 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 18:28:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1371806647, now seen corresponding path program 1 times [2022-11-18 18:28:08,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:08,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157610397] [2022-11-18 18:28:08,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:08,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:08,892 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 18:28:08,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:08,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157610397] [2022-11-18 18:28:08,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157610397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:08,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520049838] [2022-11-18 18:28:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:08,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:08,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:08,895 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:08,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 18:28:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:09,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:28:09,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:09,061 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 18:28:09,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:09,102 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 18:28:09,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520049838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:09,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:09,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:28:09,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965312214] [2022-11-18 18:28:09,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:09,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:28:09,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:28:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:09,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:09,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 348 transitions, 766 flow. Second operand has 10 states, 10 states have (on average 331.7) internal successors, (3317), 10 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:09,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:09,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:09,398 INFO L130 PetriNetUnfolder]: 16/665 cut-off events. [2022-11-18 18:28:09,398 INFO L131 PetriNetUnfolder]: For 72/89 co-relation queries the response was YES. [2022-11-18 18:28:09,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 665 events. 16/665 cut-off events. For 72/89 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3022 event pairs, 1 based on Foata normal form. 2/584 useless extension candidates. Maximal degree in co-relation 669. Up to 20 conditions per place. [2022-11-18 18:28:09,413 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 22 selfloop transitions, 9 changer transitions 0/359 dead transitions. [2022-11-18 18:28:09,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 359 transitions, 866 flow [2022-11-18 18:28:09,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:28:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:28:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2994 transitions. [2022-11-18 18:28:09,419 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8275290215588723 [2022-11-18 18:28:09,419 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2994 transitions. [2022-11-18 18:28:09,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2994 transitions. [2022-11-18 18:28:09,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:09,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2994 transitions. [2022-11-18 18:28:09,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 332.6666666666667) internal successors, (2994), 9 states have internal predecessors, (2994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,433 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,433 INFO L175 Difference]: Start difference. First operand has 354 places, 348 transitions, 766 flow. Second operand 9 states and 2994 transitions. [2022-11-18 18:28:09,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 359 transitions, 866 flow [2022-11-18 18:28:09,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 359 transitions, 852 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:28:09,441 INFO L231 Difference]: Finished difference. Result has 363 places, 352 transitions, 812 flow [2022-11-18 18:28:09,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=812, PETRI_PLACES=363, PETRI_TRANSITIONS=352} [2022-11-18 18:28:09,442 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 13 predicate places. [2022-11-18 18:28:09,442 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 352 transitions, 812 flow [2022-11-18 18:28:09,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 331.7) internal successors, (3317), 10 states have internal predecessors, (3317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:09,444 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:09,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:09,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:09,650 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 18:28:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash -842379895, now seen corresponding path program 2 times [2022-11-18 18:28:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:09,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435651184] [2022-11-18 18:28:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:09,709 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 18:28:09,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:09,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435651184] [2022-11-18 18:28:09,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435651184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:09,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:09,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:28:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183392521] [2022-11-18 18:28:09,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:09,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:09,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:28:09,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:09,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 352 transitions, 812 flow. Second operand has 4 states, 4 states have (on average 330.75) internal successors, (1323), 4 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:09,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:09,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:09,964 INFO L130 PetriNetUnfolder]: 14/611 cut-off events. [2022-11-18 18:28:09,964 INFO L131 PetriNetUnfolder]: For 135/344 co-relation queries the response was YES. [2022-11-18 18:28:09,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 611 events. 14/611 cut-off events. For 135/344 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2647 event pairs, 1 based on Foata normal form. 3/540 useless extension candidates. Maximal degree in co-relation 647. Up to 40 conditions per place. [2022-11-18 18:28:09,975 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 21 selfloop transitions, 4 changer transitions 0/359 dead transitions. [2022-11-18 18:28:09,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 359 transitions, 876 flow [2022-11-18 18:28:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:28:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1673 transitions. [2022-11-18 18:28:09,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8323383084577114 [2022-11-18 18:28:09,979 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1673 transitions. [2022-11-18 18:28:09,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1673 transitions. [2022-11-18 18:28:09,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:09,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1673 transitions. [2022-11-18 18:28:09,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 334.6) internal successors, (1673), 5 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,986 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,987 INFO L175 Difference]: Start difference. First operand has 363 places, 352 transitions, 812 flow. Second operand 5 states and 1673 transitions. [2022-11-18 18:28:09,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 359 transitions, 876 flow [2022-11-18 18:28:09,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 359 transitions, 860 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 18:28:09,994 INFO L231 Difference]: Finished difference. Result has 366 places, 355 transitions, 828 flow [2022-11-18 18:28:09,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=828, PETRI_PLACES=366, PETRI_TRANSITIONS=355} [2022-11-18 18:28:09,996 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 16 predicate places. [2022-11-18 18:28:09,996 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 355 transitions, 828 flow [2022-11-18 18:28:09,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 330.75) internal successors, (1323), 4 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:09,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:09,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:09,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 18:28:09,998 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash 583764728, now seen corresponding path program 1 times [2022-11-18 18:28:09,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:09,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079611140] [2022-11-18 18:28:09,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:10,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:10,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079611140] [2022-11-18 18:28:10,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079611140] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:10,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755650184] [2022-11-18 18:28:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:10,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:10,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:10,139 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:10,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 18:28:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:10,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:28:10,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:10,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:10,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755650184] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:10,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:10,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 18:28:10,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53809098] [2022-11-18 18:28:10,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:10,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:28:10,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:10,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:28:10,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:28:10,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:10,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 355 transitions, 828 flow. Second operand has 18 states, 18 states have (on average 332.05555555555554) internal successors, (5977), 18 states have internal predecessors, (5977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:10,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:10,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:10,919 INFO L130 PetriNetUnfolder]: 14/639 cut-off events. [2022-11-18 18:28:10,919 INFO L131 PetriNetUnfolder]: For 111/128 co-relation queries the response was YES. [2022-11-18 18:28:10,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 639 events. 14/639 cut-off events. For 111/128 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2651 event pairs, 1 based on Foata normal form. 4/576 useless extension candidates. Maximal degree in co-relation 634. Up to 20 conditions per place. [2022-11-18 18:28:10,932 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 38 selfloop transitions, 21 changer transitions 0/390 dead transitions. [2022-11-18 18:28:10,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 390 transitions, 1100 flow [2022-11-18 18:28:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:28:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 18:28:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6972 transitions. [2022-11-18 18:28:10,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8258706467661692 [2022-11-18 18:28:10,946 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6972 transitions. [2022-11-18 18:28:10,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6972 transitions. [2022-11-18 18:28:10,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:10,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6972 transitions. [2022-11-18 18:28:10,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 332.0) internal successors, (6972), 21 states have internal predecessors, (6972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 402.0) internal successors, (8844), 22 states have internal predecessors, (8844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,988 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 402.0) internal successors, (8844), 22 states have internal predecessors, (8844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:10,989 INFO L175 Difference]: Start difference. First operand has 366 places, 355 transitions, 828 flow. Second operand 21 states and 6972 transitions. [2022-11-18 18:28:10,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 390 transitions, 1100 flow [2022-11-18 18:28:10,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 390 transitions, 1098 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:28:11,039 INFO L231 Difference]: Finished difference. Result has 390 places, 368 transitions, 982 flow [2022-11-18 18:28:11,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=982, PETRI_PLACES=390, PETRI_TRANSITIONS=368} [2022-11-18 18:28:11,040 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 40 predicate places. [2022-11-18 18:28:11,041 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 368 transitions, 982 flow [2022-11-18 18:28:11,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 332.05555555555554) internal successors, (5977), 18 states have internal predecessors, (5977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:11,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:11,042 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:28:11,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:11,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 18:28:11,249 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:11,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:11,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1147385976, now seen corresponding path program 2 times [2022-11-18 18:28:11,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:11,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806479851] [2022-11-18 18:28:11,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:11,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:11,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:11,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806479851] [2022-11-18 18:28:11,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806479851] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:11,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044334953] [2022-11-18 18:28:11,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:28:11,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:11,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:11,590 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:11,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 18:28:11,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:28:11,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:28:11,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:28:11,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:11,931 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-18 18:28:11,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:11,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044334953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:11,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:11,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 18:28:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543442643] [2022-11-18 18:28:11,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:11,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:11,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:11,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:11,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:28:11,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 402 [2022-11-18 18:28:11,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 368 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 328.5) internal successors, (1971), 6 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:11,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:11,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 402 [2022-11-18 18:28:11,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:12,696 INFO L130 PetriNetUnfolder]: 104/1441 cut-off events. [2022-11-18 18:28:12,697 INFO L131 PetriNetUnfolder]: For 511/646 co-relation queries the response was YES. [2022-11-18 18:28:12,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1960 conditions, 1441 events. 104/1441 cut-off events. For 511/646 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 10276 event pairs, 11 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 1770. Up to 68 conditions per place. [2022-11-18 18:28:12,724 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 33 selfloop transitions, 6 changer transitions 0/387 dead transitions. [2022-11-18 18:28:12,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 387 transitions, 1188 flow [2022-11-18 18:28:12,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:28:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:28:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2329 transitions. [2022-11-18 18:28:12,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8276474769012082 [2022-11-18 18:28:12,728 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2329 transitions. [2022-11-18 18:28:12,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2329 transitions. [2022-11-18 18:28:12,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:12,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2329 transitions. [2022-11-18 18:28:12,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.7142857142857) internal successors, (2329), 7 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:12,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:12,737 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:12,737 INFO L175 Difference]: Start difference. First operand has 390 places, 368 transitions, 982 flow. Second operand 7 states and 2329 transitions. [2022-11-18 18:28:12,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 387 transitions, 1188 flow [2022-11-18 18:28:12,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 387 transitions, 1132 flow, removed 20 selfloop flow, removed 8 redundant places. [2022-11-18 18:28:12,746 INFO L231 Difference]: Finished difference. Result has 387 places, 367 transitions, 936 flow [2022-11-18 18:28:12,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=936, PETRI_PLACES=387, PETRI_TRANSITIONS=367} [2022-11-18 18:28:12,747 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 37 predicate places. [2022-11-18 18:28:12,748 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 367 transitions, 936 flow [2022-11-18 18:28:12,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.5) internal successors, (1971), 6 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:12,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:12,748 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:12,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:12,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 18:28:12,954 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:12,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:12,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1427256126, now seen corresponding path program 1 times [2022-11-18 18:28:12,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:12,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607319874] [2022-11-18 18:28:12,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:12,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-18 18:28:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:13,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607319874] [2022-11-18 18:28:13,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607319874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:13,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:13,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:28:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122479802] [2022-11-18 18:28:13,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:13,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:28:13,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:13,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:28:13,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:28:13,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:13,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 367 transitions, 936 flow. Second operand has 4 states, 4 states have (on average 332.75) internal successors, (1331), 4 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:13,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:13,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:13,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:13,229 INFO L130 PetriNetUnfolder]: 14/636 cut-off events. [2022-11-18 18:28:13,229 INFO L131 PetriNetUnfolder]: For 175/368 co-relation queries the response was YES. [2022-11-18 18:28:13,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 636 events. 14/636 cut-off events. For 175/368 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2627 event pairs, 1 based on Foata normal form. 11/582 useless extension candidates. Maximal degree in co-relation 664. Up to 20 conditions per place. [2022-11-18 18:28:13,238 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 13 selfloop transitions, 8 changer transitions 0/367 dead transitions. [2022-11-18 18:28:13,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 367 transitions, 976 flow [2022-11-18 18:28:13,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:28:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:28:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1664 transitions. [2022-11-18 18:28:13,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8278606965174129 [2022-11-18 18:28:13,243 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1664 transitions. [2022-11-18 18:28:13,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1664 transitions. [2022-11-18 18:28:13,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:13,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1664 transitions. [2022-11-18 18:28:13,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 332.8) internal successors, (1664), 5 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:13,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:13,250 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:13,250 INFO L175 Difference]: Start difference. First operand has 387 places, 367 transitions, 936 flow. Second operand 5 states and 1664 transitions. [2022-11-18 18:28:13,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 367 transitions, 976 flow [2022-11-18 18:28:13,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 367 transitions, 964 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:28:13,258 INFO L231 Difference]: Finished difference. Result has 385 places, 367 transitions, 944 flow [2022-11-18 18:28:13,258 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=944, PETRI_PLACES=385, PETRI_TRANSITIONS=367} [2022-11-18 18:28:13,259 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 35 predicate places. [2022-11-18 18:28:13,259 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 367 transitions, 944 flow [2022-11-18 18:28:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 332.75) internal successors, (1331), 4 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:13,260 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:13,260 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:28:13,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 18:28:13,260 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:13,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1209228406, now seen corresponding path program 1 times [2022-11-18 18:28:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:13,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274787687] [2022-11-18 18:28:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:13,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:13,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274787687] [2022-11-18 18:28:13,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274787687] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:13,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720473806] [2022-11-18 18:28:13,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:13,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:13,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:13,544 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:13,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 18:28:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:13,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 18:28:13,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:13,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:28:14,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720473806] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:14,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:14,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 18:28:14,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013677627] [2022-11-18 18:28:14,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:14,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 18:28:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:14,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 18:28:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:28:14,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:14,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 367 transitions, 944 flow. Second operand has 23 states, 23 states have (on average 332.30434782608694) internal successors, (7643), 23 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:14,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:14,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:14,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:14,593 INFO L130 PetriNetUnfolder]: 14/657 cut-off events. [2022-11-18 18:28:14,593 INFO L131 PetriNetUnfolder]: For 225/242 co-relation queries the response was YES. [2022-11-18 18:28:14,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 657 events. 14/657 cut-off events. For 225/242 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2619 event pairs, 1 based on Foata normal form. 3/594 useless extension candidates. Maximal degree in co-relation 676. Up to 20 conditions per place. [2022-11-18 18:28:14,605 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 50 selfloop transitions, 30 changer transitions 0/410 dead transitions. [2022-11-18 18:28:14,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 410 transitions, 1290 flow [2022-11-18 18:28:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 18:28:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 18:28:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9953 transitions. [2022-11-18 18:28:14,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8252902155887231 [2022-11-18 18:28:14,619 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 9953 transitions. [2022-11-18 18:28:14,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 9953 transitions. [2022-11-18 18:28:14,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:14,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 9953 transitions. [2022-11-18 18:28:14,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 331.76666666666665) internal successors, (9953), 30 states have internal predecessors, (9953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:14,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 402.0) internal successors, (12462), 31 states have internal predecessors, (12462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:14,694 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 402.0) internal successors, (12462), 31 states have internal predecessors, (12462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:14,694 INFO L175 Difference]: Start difference. First operand has 385 places, 367 transitions, 944 flow. Second operand 30 states and 9953 transitions. [2022-11-18 18:28:14,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 410 transitions, 1290 flow [2022-11-18 18:28:14,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 410 transitions, 1278 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:28:14,704 INFO L231 Difference]: Finished difference. Result has 415 places, 377 transitions, 1086 flow [2022-11-18 18:28:14,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1086, PETRI_PLACES=415, PETRI_TRANSITIONS=377} [2022-11-18 18:28:14,710 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 65 predicate places. [2022-11-18 18:28:14,710 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 377 transitions, 1086 flow [2022-11-18 18:28:14,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 332.30434782608694) internal successors, (7643), 23 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:14,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:14,711 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, 1, 1, 1] [2022-11-18 18:28:14,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:14,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:14,917 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:14,918 INFO L85 PathProgramCache]: Analyzing trace with hash 677405916, now seen corresponding path program 2 times [2022-11-18 18:28:14,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:14,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333600502] [2022-11-18 18:28:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:14,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:15,070 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 18:28:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:15,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333600502] [2022-11-18 18:28:15,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333600502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:15,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:15,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:28:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499026267] [2022-11-18 18:28:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:15,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:28:15,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:15,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:28:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:28:15,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:15,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 377 transitions, 1086 flow. Second operand has 5 states, 5 states have (on average 330.8) internal successors, (1654), 5 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:15,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:15,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:15,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:15,711 INFO L130 PetriNetUnfolder]: 90/1714 cut-off events. [2022-11-18 18:28:15,711 INFO L131 PetriNetUnfolder]: For 504/571 co-relation queries the response was YES. [2022-11-18 18:28:15,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1714 events. 90/1714 cut-off events. For 504/571 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12707 event pairs, 16 based on Foata normal form. 0/1511 useless extension candidates. Maximal degree in co-relation 1964. Up to 57 conditions per place. [2022-11-18 18:28:15,734 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 27 selfloop transitions, 5 changer transitions 0/392 dead transitions. [2022-11-18 18:28:15,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 392 transitions, 1252 flow [2022-11-18 18:28:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:28:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:28:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2007 transitions. [2022-11-18 18:28:15,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.832089552238806 [2022-11-18 18:28:15,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2007 transitions. [2022-11-18 18:28:15,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2007 transitions. [2022-11-18 18:28:15,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:15,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2007 transitions. [2022-11-18 18:28:15,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:15,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:15,745 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:15,746 INFO L175 Difference]: Start difference. First operand has 415 places, 377 transitions, 1086 flow. Second operand 6 states and 2007 transitions. [2022-11-18 18:28:15,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 392 transitions, 1252 flow [2022-11-18 18:28:15,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 392 transitions, 1206 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 18:28:15,755 INFO L231 Difference]: Finished difference. Result has 401 places, 376 transitions, 1048 flow [2022-11-18 18:28:15,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=401, PETRI_TRANSITIONS=376} [2022-11-18 18:28:15,757 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 51 predicate places. [2022-11-18 18:28:15,757 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 376 transitions, 1048 flow [2022-11-18 18:28:15,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 330.8) internal successors, (1654), 5 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:15,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:15,758 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:15,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 18:28:15,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:15,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:15,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1988640174, now seen corresponding path program 1 times [2022-11-18 18:28:15,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342253066] [2022-11-18 18:28:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:15,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:15,867 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 18:28:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:15,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342253066] [2022-11-18 18:28:15,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342253066] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:15,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485156496] [2022-11-18 18:28:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:15,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:15,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:15,870 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:15,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 18:28:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:16,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:28:16,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:16,084 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 18:28:16,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:28:16,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485156496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:16,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:28:16,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 18:28:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233293232] [2022-11-18 18:28:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:16,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:16,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:16,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:28:16,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:16,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 376 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:16,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:16,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:16,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:16,315 INFO L130 PetriNetUnfolder]: 14/654 cut-off events. [2022-11-18 18:28:16,316 INFO L131 PetriNetUnfolder]: For 284/461 co-relation queries the response was YES. [2022-11-18 18:28:16,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 654 events. 14/654 cut-off events. For 284/461 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2610 event pairs, 1 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 722. Up to 26 conditions per place. [2022-11-18 18:28:16,328 INFO L137 encePairwiseOnDemand]: 397/402 looper letters, 17 selfloop transitions, 6 changer transitions 0/378 dead transitions. [2022-11-18 18:28:16,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 378 transitions, 1096 flow [2022-11-18 18:28:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:28:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:28:16,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2327 transitions. [2022-11-18 18:28:16,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8269367448471926 [2022-11-18 18:28:16,333 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2327 transitions. [2022-11-18 18:28:16,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2327 transitions. [2022-11-18 18:28:16,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:16,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2327 transitions. [2022-11-18 18:28:16,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.42857142857144) internal successors, (2327), 7 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:16,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:16,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:16,341 INFO L175 Difference]: Start difference. First operand has 401 places, 376 transitions, 1048 flow. Second operand 7 states and 2327 transitions. [2022-11-18 18:28:16,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 378 transitions, 1096 flow [2022-11-18 18:28:16,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 378 transitions, 1086 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:28:16,350 INFO L231 Difference]: Finished difference. Result has 401 places, 375 transitions, 1046 flow [2022-11-18 18:28:16,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1046, PETRI_PLACES=401, PETRI_TRANSITIONS=375} [2022-11-18 18:28:16,352 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 51 predicate places. [2022-11-18 18:28:16,352 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 375 transitions, 1046 flow [2022-11-18 18:28:16,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:16,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:16,353 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, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:16,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:16,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 18:28:16,558 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:16,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash -419331036, now seen corresponding path program 1 times [2022-11-18 18:28:16,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:16,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872741295] [2022-11-18 18:28:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:16,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:16,652 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 18:28:16,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:16,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872741295] [2022-11-18 18:28:16,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872741295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:28:16,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475553279] [2022-11-18 18:28:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:16,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:16,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:28:16,655 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:28:16,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 18:28:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:16,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:28:16,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:28:16,874 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 18:28:16,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:28:16,913 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 18:28:16,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475553279] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:28:16,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:28:16,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:28:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293176795] [2022-11-18 18:28:16,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:28:16,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:28:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:28:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:16,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:16,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 375 transitions, 1046 flow. Second operand has 10 states, 10 states have (on average 331.9) internal successors, (3319), 10 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:16,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:16,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:16,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:17,144 INFO L130 PetriNetUnfolder]: 10/550 cut-off events. [2022-11-18 18:28:17,145 INFO L131 PetriNetUnfolder]: For 255/272 co-relation queries the response was YES. [2022-11-18 18:28:17,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 550 events. 10/550 cut-off events. For 255/272 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1598 event pairs, 5 based on Foata normal form. 3/500 useless extension candidates. Maximal degree in co-relation 562. Up to 17 conditions per place. [2022-11-18 18:28:17,152 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 22 selfloop transitions, 9 changer transitions 0/386 dead transitions. [2022-11-18 18:28:17,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 386 transitions, 1146 flow [2022-11-18 18:28:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:28:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:28:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2994 transitions. [2022-11-18 18:28:17,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8275290215588723 [2022-11-18 18:28:17,157 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2994 transitions. [2022-11-18 18:28:17,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2994 transitions. [2022-11-18 18:28:17,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:17,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2994 transitions. [2022-11-18 18:28:17,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 332.6666666666667) internal successors, (2994), 9 states have internal predecessors, (2994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:17,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:17,167 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:17,167 INFO L175 Difference]: Start difference. First operand has 401 places, 375 transitions, 1046 flow. Second operand 9 states and 2994 transitions. [2022-11-18 18:28:17,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 386 transitions, 1146 flow [2022-11-18 18:28:17,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 386 transitions, 1133 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-18 18:28:17,177 INFO L231 Difference]: Finished difference. Result has 408 places, 379 transitions, 1093 flow [2022-11-18 18:28:17,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1035, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1093, PETRI_PLACES=408, PETRI_TRANSITIONS=379} [2022-11-18 18:28:17,178 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 58 predicate places. [2022-11-18 18:28:17,179 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 379 transitions, 1093 flow [2022-11-18 18:28:17,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 331.9) internal successors, (3319), 10 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:17,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:17,180 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, 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 18:28:17,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 18:28:17,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:28:17,387 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:17,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:17,387 INFO L85 PathProgramCache]: Analyzing trace with hash -875675563, now seen corresponding path program 1 times [2022-11-18 18:28:17,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:17,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785496449] [2022-11-18 18:28:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:17,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-11-18 18:28:17,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:17,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785496449] [2022-11-18 18:28:17,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785496449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:17,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:17,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:28:17,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105123186] [2022-11-18 18:28:17,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:17,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:28:17,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:17,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:28:17,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:28:17,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 402 [2022-11-18 18:28:17,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 379 transitions, 1093 flow. Second operand has 6 states, 6 states have (on average 328.6666666666667) internal successors, (1972), 6 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:17,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:17,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 402 [2022-11-18 18:28:17,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:18,025 INFO L130 PetriNetUnfolder]: 78/1033 cut-off events. [2022-11-18 18:28:18,025 INFO L131 PetriNetUnfolder]: For 535/550 co-relation queries the response was YES. [2022-11-18 18:28:18,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1033 events. 78/1033 cut-off events. For 535/550 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5799 event pairs, 18 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 1286. Up to 64 conditions per place. [2022-11-18 18:28:18,046 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 28 selfloop transitions, 6 changer transitions 0/393 dead transitions. [2022-11-18 18:28:18,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 393 transitions, 1254 flow [2022-11-18 18:28:18,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:28:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:28:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2324 transitions. [2022-11-18 18:28:18,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8258706467661692 [2022-11-18 18:28:18,051 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2324 transitions. [2022-11-18 18:28:18,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2324 transitions. [2022-11-18 18:28:18,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:18,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2324 transitions. [2022-11-18 18:28:18,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:18,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:18,062 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:18,062 INFO L175 Difference]: Start difference. First operand has 408 places, 379 transitions, 1093 flow. Second operand 7 states and 2324 transitions. [2022-11-18 18:28:18,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 393 transitions, 1254 flow [2022-11-18 18:28:18,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 393 transitions, 1240 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-18 18:28:18,074 INFO L231 Difference]: Finished difference. Result has 409 places, 378 transitions, 1089 flow [2022-11-18 18:28:18,075 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1089, PETRI_PLACES=409, PETRI_TRANSITIONS=378} [2022-11-18 18:28:18,075 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 59 predicate places. [2022-11-18 18:28:18,076 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 378 transitions, 1089 flow [2022-11-18 18:28:18,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.6666666666667) internal successors, (1972), 6 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:18,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:18,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:28:18,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 18:28:18,077 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:18,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:18,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1846291580, now seen corresponding path program 1 times [2022-11-18 18:28:18,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:18,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379004009] [2022-11-18 18:28:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:18,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:18,662 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 18:28:18,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:18,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379004009] [2022-11-18 18:28:18,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379004009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:18,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:18,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:28:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120738339] [2022-11-18 18:28:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:28:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:28:18,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:28:18,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 402 [2022-11-18 18:28:18,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 378 transitions, 1089 flow. Second operand has 10 states, 10 states have (on average 288.4) internal successors, (2884), 10 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:18,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:18,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 402 [2022-11-18 18:28:18,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:28:57,709 INFO L130 PetriNetUnfolder]: 51416/149062 cut-off events. [2022-11-18 18:28:57,709 INFO L131 PetriNetUnfolder]: For 4713/4713 co-relation queries the response was YES. [2022-11-18 18:28:58,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223749 conditions, 149062 events. 51416/149062 cut-off events. For 4713/4713 co-relation queries the response was YES. Maximal size of possible extension queue 4616. Compared 2236074 event pairs, 11755 based on Foata normal form. 0/136253 useless extension candidates. Maximal degree in co-relation 223479. Up to 35157 conditions per place. [2022-11-18 18:28:59,655 INFO L137 encePairwiseOnDemand]: 384/402 looper letters, 375 selfloop transitions, 67 changer transitions 0/759 dead transitions. [2022-11-18 18:28:59,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 759 transitions, 2898 flow [2022-11-18 18:28:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 18:28:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-18 18:28:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 6746 transitions. [2022-11-18 18:28:59,663 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7627770239710538 [2022-11-18 18:28:59,663 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 6746 transitions. [2022-11-18 18:28:59,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 6746 transitions. [2022-11-18 18:28:59,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:28:59,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 6746 transitions. [2022-11-18 18:28:59,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 306.6363636363636) internal successors, (6746), 22 states have internal predecessors, (6746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:59,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 402.0) internal successors, (9246), 23 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:59,686 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 402.0) internal successors, (9246), 23 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:59,686 INFO L175 Difference]: Start difference. First operand has 409 places, 378 transitions, 1089 flow. Second operand 22 states and 6746 transitions. [2022-11-18 18:28:59,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 759 transitions, 2898 flow [2022-11-18 18:28:59,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 759 transitions, 2886 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:28:59,716 INFO L231 Difference]: Finished difference. Result has 440 places, 464 transitions, 1623 flow [2022-11-18 18:28:59,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1623, PETRI_PLACES=440, PETRI_TRANSITIONS=464} [2022-11-18 18:28:59,718 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 90 predicate places. [2022-11-18 18:28:59,718 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 464 transitions, 1623 flow [2022-11-18 18:28:59,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 288.4) internal successors, (2884), 10 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:59,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:28:59,719 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, 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 18:28:59,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-18 18:28:59,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:28:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:28:59,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1376137327, now seen corresponding path program 1 times [2022-11-18 18:28:59,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:28:59,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346682837] [2022-11-18 18:28:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:28:59,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:28:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:28:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-11-18 18:28:59,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:28:59,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346682837] [2022-11-18 18:28:59,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346682837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:28:59,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:28:59,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:28:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561127125] [2022-11-18 18:28:59,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:28:59,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:28:59,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:28:59,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:28:59,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:28:59,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 402 [2022-11-18 18:28:59,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 464 transitions, 1623 flow. Second operand has 5 states, 5 states have (on average 331.0) internal successors, (1655), 5 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:28:59,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:28:59,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 402 [2022-11-18 18:28:59,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:01,643 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1557] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][400], [1655#true, Black: 3561#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3586#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 147#L958-5true, Black: 3580#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3621#(<= 0 (+ |t_funThread2of3ForFork0_~i~0#1| 2147483648)), Black: 3598#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3578#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 46#L945-10true, t_funThread1of3ForFork0NotInUse, Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread2of3ForFork0InUse, Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), t_funThread3of3ForFork0InUse, Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), 108#t_funENTRYtrue, Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:01,643 INFO L383 tUnfolder$Statistics]: this new event has 255 ancestors and is cut-off event [2022-11-18 18:29:01,643 INFO L386 tUnfolder$Statistics]: existing Event has 255 ancestors and is cut-off event [2022-11-18 18:29:01,644 INFO L386 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-11-18 18:29:01,644 INFO L386 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-11-18 18:29:02,049 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1557] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][400], [18#L945-10true, 1655#true, Black: 3561#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3586#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 147#L958-5true, Black: 3580#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3598#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), 3621#(<= 0 (+ |t_funThread2of3ForFork0_~i~0#1| 2147483648)), Black: 3578#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), t_funThread1of3ForFork0NotInUse, 46#L945-10true, Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread2of3ForFork0InUse, Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), t_funThread3of3ForFork0InUse, Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,050 INFO L383 tUnfolder$Statistics]: this new event has 284 ancestors and is cut-off event [2022-11-18 18:29:02,050 INFO L386 tUnfolder$Statistics]: existing Event has 284 ancestors and is cut-off event [2022-11-18 18:29:02,050 INFO L386 tUnfolder$Statistics]: existing Event has 272 ancestors and is cut-off event [2022-11-18 18:29:02,050 INFO L386 tUnfolder$Statistics]: existing Event has 272 ancestors and is cut-off event [2022-11-18 18:29:02,053 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1557] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][400], [1655#true, Black: 3561#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3586#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 147#L958-5true, Black: 3580#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3598#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), 3621#(<= 0 (+ |t_funThread2of3ForFork0_~i~0#1| 2147483648)), Black: 3578#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), t_funThread1of3ForFork0NotInUse, Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), t_funThread2of3ForFork0NotInUse, Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), t_funThread3of3ForFork0InUse, Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), 108#t_funENTRYtrue, Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,053 INFO L383 tUnfolder$Statistics]: this new event has 284 ancestors and is cut-off event [2022-11-18 18:29:02,053 INFO L386 tUnfolder$Statistics]: existing Event has 260 ancestors and is cut-off event [2022-11-18 18:29:02,053 INFO L386 tUnfolder$Statistics]: existing Event has 272 ancestors and is cut-off event [2022-11-18 18:29:02,053 INFO L386 tUnfolder$Statistics]: existing Event has 260 ancestors and is cut-off event [2022-11-18 18:29:02,057 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1559] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_15| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread3of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_15|, t_funThread3of3ForFork0_thidvar0=v_t_funThread3of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_15|, t_funThread3of3ForFork0_thidvar0=v_t_funThread3of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][411], [63#t_funENTRYtrue, 1655#true, Black: 3561#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3586#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 147#L958-5true, Black: 3580#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3598#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), 3621#(<= 0 (+ |t_funThread2of3ForFork0_~i~0#1| 2147483648)), Black: 3578#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= 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3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), t_funThread2of3ForFork0NotInUse, Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread3of3ForFork0NotInUse, Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,057 INFO L383 tUnfolder$Statistics]: this new event has 284 ancestors and is cut-off event [2022-11-18 18:29:02,057 INFO L386 tUnfolder$Statistics]: existing Event has 260 ancestors and is cut-off event [2022-11-18 18:29:02,057 INFO L386 tUnfolder$Statistics]: existing Event has 272 ancestors and is cut-off event [2022-11-18 18:29:02,057 INFO L386 tUnfolder$Statistics]: existing Event has 260 ancestors and is cut-off event [2022-11-18 18:29:02,177 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1559] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_15| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread3of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_15|, t_funThread3of3ForFork0_thidvar0=v_t_funThread3of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_15|, t_funThread3of3ForFork0_thidvar0=v_t_funThread3of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][411], [229#L943true, 1655#true, Black: 3561#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3586#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 147#L958-5true, Black: 3580#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3598#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), 3621#(<= 0 (+ |t_funThread2of3ForFork0_~i~0#1| 2147483648)), Black: 3578#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread1of3ForFork0InUse, Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), t_funThread2of3ForFork0NotInUse, Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread3of3ForFork0NotInUse, Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,178 INFO L383 tUnfolder$Statistics]: this new event has 295 ancestors and is cut-off event [2022-11-18 18:29:02,178 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-18 18:29:02,178 INFO L386 tUnfolder$Statistics]: existing Event has 283 ancestors and is cut-off event [2022-11-18 18:29:02,178 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-18 18:29:02,279 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1559] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_15| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread3of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_15|, t_funThread3of3ForFork0_thidvar0=v_t_funThread3of3ForFork0_thidvar0_4} 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Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread1of3ForFork0InUse, Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), t_funThread2of3ForFork0NotInUse, Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), t_funThread3of3ForFork0NotInUse, Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 74#L945-6true, 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,279 INFO L383 tUnfolder$Statistics]: this new event has 309 ancestors and is cut-off event [2022-11-18 18:29:02,280 INFO L386 tUnfolder$Statistics]: existing Event has 285 ancestors and is cut-off event [2022-11-18 18:29:02,280 INFO L386 tUnfolder$Statistics]: existing Event has 297 ancestors and is cut-off event [2022-11-18 18:29:02,280 INFO L386 tUnfolder$Statistics]: existing Event has 285 ancestors and is cut-off event [2022-11-18 18:29:02,298 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1557] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] 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|~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), t_funThread1of3ForFork0NotInUse, Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), t_funThread2of3ForFork0NotInUse, Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), t_funThread3of3ForFork0InUse, Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,298 INFO L383 tUnfolder$Statistics]: this new event has 313 ancestors and is cut-off event [2022-11-18 18:29:02,298 INFO L386 tUnfolder$Statistics]: existing Event has 301 ancestors and is cut-off event [2022-11-18 18:29:02,298 INFO L386 tUnfolder$Statistics]: existing Event has 289 ancestors and is cut-off event [2022-11-18 18:29:02,298 INFO L386 tUnfolder$Statistics]: existing Event has 301 ancestors and is cut-off event [2022-11-18 18:29:02,334 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1557] t_funEXIT-->L958-5: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem59#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem59#1=|v_ULTIMATE.start_main_#t~mem59#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][400], [1655#true, Black: 3561#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3586#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 147#L958-5true, Black: 3580#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3598#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), 3621#(<= 0 (+ |t_funThread2of3ForFork0_~i~0#1| 2147483648)), 3560#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3578#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3574#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 2759#(<= |ULTIMATE.start_main_~i~3#1| 1), Black: 3572#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3182#(< |ULTIMATE.start_main_~i~3#1| 10000), Black: 3582#(and (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), Black: 3540#(and (< |ULTIMATE.start_main_~i~3#1| 10000) (< |ULTIMATE.start_main_#t~post45#1| 9999)), t_funThread1of3ForFork0NotInUse, Black: 3590#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 3584#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), Black: 3594#(and (<= 3 |~#a~0.base|) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3)), t_funThread2of3ForFork0NotInUse, Black: 3570#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0)), t_funThread3of3ForFork0NotInUse, Black: 3568#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (<= |~#a~0.base| 3)), Black: 3576#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (not (= |ULTIMATE.start_main_~#t_ids~0#1.base| |~#a~0.base|)) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 1192#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 3596#(and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (<= 3 |~#a~0.base|) (= (select |#valid| 3) 1) (= 0 |t_funThread1of3ForFork0_#t~post37#1|) (<= |~#a~0.base| 3) (= (select (select |#memory_int| |t_funThread1of3ForFork0_~p~0#1.base|) |t_funThread1of3ForFork0_~p~0#1.offset|) 0) (= |t_funThread1of3ForFork0_#t~mem36#1| 0)), Black: 828#(<= |ULTIMATE.start_main_~i~1#1| 3), Black: 1152#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 1169#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 707#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 491#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 355#(= |ULTIMATE.start_main_~i~1#1| 0), 2366#(<= 1 |ULTIMATE.start_main_~i~3#1|), Black: 1680#(<= |ULTIMATE.start_main_~i~1#1| 7), 363#true, Black: 2111#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 2094#(< |ULTIMATE.start_main_~i~1#1| 10), 2755#true, Black: 812#(= |ULTIMATE.start_main_~i~3#1| 0), 487#true, 1664#true, 820#true]) [2022-11-18 18:29:02,335 INFO L383 tUnfolder$Statistics]: this new event has 330 ancestors and is cut-off event [2022-11-18 18:29:02,335 INFO L386 tUnfolder$Statistics]: existing Event has 318 ancestors and is cut-off event [2022-11-18 18:29:02,335 INFO L386 tUnfolder$Statistics]: existing Event has 306 ancestors and is cut-off event [2022-11-18 18:29:02,335 INFO L386 tUnfolder$Statistics]: existing Event has 306 ancestors and is cut-off event [2022-11-18 18:29:02,337 INFO L130 PetriNetUnfolder]: 1111/7962 cut-off events. [2022-11-18 18:29:02,338 INFO L131 PetriNetUnfolder]: For 6431/6807 co-relation queries the response was YES. [2022-11-18 18:29:02,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12848 conditions, 7962 events. 1111/7962 cut-off events. For 6431/6807 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 88452 event pairs, 109 based on Foata normal form. 52/7048 useless extension candidates. Maximal degree in co-relation 12583. Up to 520 conditions per place. [2022-11-18 18:29:02,494 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 23 selfloop transitions, 5 changer transitions 0/475 dead transitions. [2022-11-18 18:29:02,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 475 transitions, 1753 flow [2022-11-18 18:29:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:29:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:29:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2003 transitions. [2022-11-18 18:29:02,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8304311774461028 [2022-11-18 18:29:02,497 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2003 transitions. [2022-11-18 18:29:02,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2003 transitions. [2022-11-18 18:29:02,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:02,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2003 transitions. [2022-11-18 18:29:02,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.8333333333333) internal successors, (2003), 6 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:02,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:02,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:02,504 INFO L175 Difference]: Start difference. First operand has 440 places, 464 transitions, 1623 flow. Second operand 6 states and 2003 transitions. [2022-11-18 18:29:02,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 475 transitions, 1753 flow [2022-11-18 18:29:02,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 475 transitions, 1752 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:29:02,547 INFO L231 Difference]: Finished difference. Result has 443 places, 463 transitions, 1630 flow [2022-11-18 18:29:02,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1630, PETRI_PLACES=443, PETRI_TRANSITIONS=463} [2022-11-18 18:29:02,548 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, 93 predicate places. [2022-11-18 18:29:02,548 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 463 transitions, 1630 flow [2022-11-18 18:29:02,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 331.0) internal successors, (1655), 5 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:02,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:02,551 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 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, 1, 1, 1] [2022-11-18 18:29:02,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-18 18:29:02,551 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-18 18:29:02,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:02,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1446186929, now seen corresponding path program 1 times [2022-11-18 18:29:02,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:02,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509368520] [2022-11-18 18:29:02,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:02,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:02,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:29:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:29:02,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:29:02,616 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:29:02,616 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2022-11-18 18:29:02,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 35 remaining) [2022-11-18 18:29:02,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 35 remaining) [2022-11-18 18:29:02,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 35 remaining) [2022-11-18 18:29:02,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 35 remaining) [2022-11-18 18:29:02,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 35 remaining) [2022-11-18 18:29:02,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 35 remaining) [2022-11-18 18:29:02,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 35 remaining) [2022-11-18 18:29:02,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 35 remaining) [2022-11-18 18:29:02,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 35 remaining) [2022-11-18 18:29:02,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 35 remaining) [2022-11-18 18:29:02,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 35 remaining) [2022-11-18 18:29:02,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 35 remaining) [2022-11-18 18:29:02,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 35 remaining) [2022-11-18 18:29:02,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 35 remaining) [2022-11-18 18:29:02,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 35 remaining) [2022-11-18 18:29:02,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 35 remaining) [2022-11-18 18:29:02,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 35 remaining) [2022-11-18 18:29:02,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 35 remaining) [2022-11-18 18:29:02,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 35 remaining) [2022-11-18 18:29:02,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 35 remaining) [2022-11-18 18:29:02,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 35 remaining) [2022-11-18 18:29:02,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 35 remaining) [2022-11-18 18:29:02,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 35 remaining) [2022-11-18 18:29:02,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 35 remaining) [2022-11-18 18:29:02,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 35 remaining) [2022-11-18 18:29:02,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 35 remaining) [2022-11-18 18:29:02,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 35 remaining) [2022-11-18 18:29:02,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 35 remaining) [2022-11-18 18:29:02,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 35 remaining) [2022-11-18 18:29:02,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 35 remaining) [2022-11-18 18:29:02,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 35 remaining) [2022-11-18 18:29:02,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 35 remaining) [2022-11-18 18:29:02,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 35 remaining) [2022-11-18 18:29:02,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 35 remaining) [2022-11-18 18:29:02,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-18 18:29:02,624 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:02,624 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 18:29:02,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-18 18:29:02,717 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:29:02,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 488 transitions, 1020 flow [2022-11-18 18:29:03,045 INFO L130 PetriNetUnfolder]: 157/1081 cut-off events. [2022-11-18 18:29:03,045 INFO L131 PetriNetUnfolder]: For 48/52 co-relation queries the response was YES. [2022-11-18 18:29:03,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136 conditions, 1081 events. 157/1081 cut-off events. For 48/52 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5377 event pairs, 6 based on Foata normal form. 0/840 useless extension candidates. Maximal degree in co-relation 774. Up to 32 conditions per place. [2022-11-18 18:29:03,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 424 places, 488 transitions, 1020 flow [2022-11-18 18:29:03,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 488 transitions, 1020 flow [2022-11-18 18:29:03,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:29:03,077 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;@4b14221d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:29:03,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-18 18:29:03,081 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2022-11-18 18:29:03,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:29:03,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:03,082 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 18:29:03,082 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 18:29:03,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:03,083 INFO L85 PathProgramCache]: Analyzing trace with hash 670928143, now seen corresponding path program 1 times [2022-11-18 18:29:03,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:03,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730554763] [2022-11-18 18:29:03,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:03,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:03,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:03,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730554763] [2022-11-18 18:29:03,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730554763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:03,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:03,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:29:03,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851928089] [2022-11-18 18:29:03,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:03,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:29:03,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:03,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:29:03,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:29:03,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:03,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 488 transitions, 1020 flow. Second operand has 4 states, 4 states have (on average 401.5) internal successors, (1606), 4 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:03,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:03,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:03,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:03,603 INFO L130 PetriNetUnfolder]: 31/953 cut-off events. [2022-11-18 18:29:03,603 INFO L131 PetriNetUnfolder]: For 124/139 co-relation queries the response was YES. [2022-11-18 18:29:03,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 953 events. 31/953 cut-off events. For 124/139 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4791 event pairs, 6 based on Foata normal form. 484/1308 useless extension candidates. Maximal degree in co-relation 714. Up to 49 conditions per place. [2022-11-18 18:29:03,627 INFO L137 encePairwiseOnDemand]: 418/488 looper letters, 23 selfloop transitions, 4 changer transitions 1/427 dead transitions. [2022-11-18 18:29:03,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 427 transitions, 952 flow [2022-11-18 18:29:03,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:29:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:29:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2094 transitions. [2022-11-18 18:29:03,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8581967213114754 [2022-11-18 18:29:03,633 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2094 transitions. [2022-11-18 18:29:03,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2094 transitions. [2022-11-18 18:29:03,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:03,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2094 transitions. [2022-11-18 18:29:03,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 418.8) internal successors, (2094), 5 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:03,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:03,643 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:03,643 INFO L175 Difference]: Start difference. First operand has 424 places, 488 transitions, 1020 flow. Second operand 5 states and 2094 transitions. [2022-11-18 18:29:03,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 427 transitions, 952 flow [2022-11-18 18:29:03,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 427 transitions, 952 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:29:03,654 INFO L231 Difference]: Finished difference. Result has 426 places, 422 transitions, 914 flow [2022-11-18 18:29:03,654 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=914, PETRI_PLACES=426, PETRI_TRANSITIONS=422} [2022-11-18 18:29:03,655 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 2 predicate places. [2022-11-18 18:29:03,655 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 422 transitions, 914 flow [2022-11-18 18:29:03,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 401.5) internal successors, (1606), 4 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:03,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:03,656 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 18:29:03,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-18 18:29:03,657 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 18:29:03,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2066586291, now seen corresponding path program 1 times [2022-11-18 18:29:03,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:03,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523402992] [2022-11-18 18:29:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:03,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:03,695 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 18:29:03,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:03,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523402992] [2022-11-18 18:29:03,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523402992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:03,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:03,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:29:03,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161089277] [2022-11-18 18:29:03,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:03,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:29:03,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:29:03,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:29:03,700 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:03,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 422 transitions, 914 flow. Second operand has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:03,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:03,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:03,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:04,036 INFO L130 PetriNetUnfolder]: 31/951 cut-off events. [2022-11-18 18:29:04,036 INFO L131 PetriNetUnfolder]: For 127/142 co-relation queries the response was YES. [2022-11-18 18:29:04,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 951 events. 31/951 cut-off events. For 127/142 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4816 event pairs, 6 based on Foata normal form. 1/827 useless extension candidates. Maximal degree in co-relation 1021. Up to 41 conditions per place. [2022-11-18 18:29:04,051 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 15 selfloop transitions, 8 changer transitions 0/422 dead transitions. [2022-11-18 18:29:04,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 422 transitions, 958 flow [2022-11-18 18:29:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:29:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:29:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2021 transitions. [2022-11-18 18:29:04,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8282786885245902 [2022-11-18 18:29:04,056 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2021 transitions. [2022-11-18 18:29:04,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2021 transitions. [2022-11-18 18:29:04,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:04,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2021 transitions. [2022-11-18 18:29:04,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 404.2) internal successors, (2021), 5 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,065 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,065 INFO L175 Difference]: Start difference. First operand has 426 places, 422 transitions, 914 flow. Second operand 5 states and 2021 transitions. [2022-11-18 18:29:04,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 422 transitions, 958 flow [2022-11-18 18:29:04,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 422 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:29:04,075 INFO L231 Difference]: Finished difference. Result has 428 places, 422 transitions, 932 flow [2022-11-18 18:29:04,076 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=932, PETRI_PLACES=428, PETRI_TRANSITIONS=422} [2022-11-18 18:29:04,077 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 4 predicate places. [2022-11-18 18:29:04,077 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 422 transitions, 932 flow [2022-11-18 18:29:04,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,078 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:04,078 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 18:29:04,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-18 18:29:04,078 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 18:29:04,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:04,079 INFO L85 PathProgramCache]: Analyzing trace with hash 360336212, now seen corresponding path program 1 times [2022-11-18 18:29:04,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:04,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616438345] [2022-11-18 18:29:04,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:04,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:04,148 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 18:29:04,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:04,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616438345] [2022-11-18 18:29:04,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616438345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:04,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019747171] [2022-11-18 18:29:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:04,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:04,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:04,151 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:04,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 18:29:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:04,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:29:04,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:04,342 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 18:29:04,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:29:04,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019747171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:04,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:29:04,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-18 18:29:04,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452248259] [2022-11-18 18:29:04,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:04,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:29:04,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:04,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:29:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:29:04,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:04,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 422 transitions, 932 flow. Second operand has 5 states, 5 states have (on average 402.8) internal successors, (2014), 5 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:04,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:04,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:04,724 INFO L130 PetriNetUnfolder]: 31/950 cut-off events. [2022-11-18 18:29:04,724 INFO L131 PetriNetUnfolder]: For 134/149 co-relation queries the response was YES. [2022-11-18 18:29:04,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 950 events. 31/950 cut-off events. For 134/149 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4783 event pairs, 6 based on Foata normal form. 1/826 useless extension candidates. Maximal degree in co-relation 1019. Up to 44 conditions per place. [2022-11-18 18:29:04,750 INFO L137 encePairwiseOnDemand]: 484/488 looper letters, 17 selfloop transitions, 5 changer transitions 0/421 dead transitions. [2022-11-18 18:29:04,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 421 transitions, 972 flow [2022-11-18 18:29:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:29:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 18:29:04,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1619 transitions. [2022-11-18 18:29:04,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.829405737704918 [2022-11-18 18:29:04,755 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1619 transitions. [2022-11-18 18:29:04,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1619 transitions. [2022-11-18 18:29:04,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:04,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1619 transitions. [2022-11-18 18:29:04,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 404.75) internal successors, (1619), 4 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 488.0) internal successors, (2440), 5 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,763 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 488.0) internal successors, (2440), 5 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,764 INFO L175 Difference]: Start difference. First operand has 428 places, 422 transitions, 932 flow. Second operand 4 states and 1619 transitions. [2022-11-18 18:29:04,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 421 transitions, 972 flow [2022-11-18 18:29:04,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 421 transitions, 960 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:29:04,776 INFO L231 Difference]: Finished difference. Result has 427 places, 421 transitions, 926 flow [2022-11-18 18:29:04,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=926, PETRI_PLACES=427, PETRI_TRANSITIONS=421} [2022-11-18 18:29:04,779 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 3 predicate places. [2022-11-18 18:29:04,780 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 421 transitions, 926 flow [2022-11-18 18:29:04,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 402.8) internal successors, (2014), 5 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:04,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:04,781 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:04,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:04,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-18 18:29:04,987 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 18:29:04,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:04,988 INFO L85 PathProgramCache]: Analyzing trace with hash -521975931, now seen corresponding path program 1 times [2022-11-18 18:29:04,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:04,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882297903] [2022-11-18 18:29:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:04,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:05,054 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 18:29:05,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:05,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882297903] [2022-11-18 18:29:05,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882297903] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:05,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877839031] [2022-11-18 18:29:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:05,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:05,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:05,057 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 18:29:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:05,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:29:05,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:05,275 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 18:29:05,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:05,308 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 18:29:05,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877839031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:05,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:05,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:29:05,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344267890] [2022-11-18 18:29:05,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:05,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:29:05,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:05,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:29:05,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:29:05,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:05,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 421 transitions, 926 flow. Second operand has 10 states, 10 states have (on average 402.7) internal successors, (4027), 10 states have internal predecessors, (4027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:05,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:05,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:05,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:05,782 INFO L130 PetriNetUnfolder]: 31/958 cut-off events. [2022-11-18 18:29:05,783 INFO L131 PetriNetUnfolder]: For 140/155 co-relation queries the response was YES. [2022-11-18 18:29:05,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 958 events. 31/958 cut-off events. For 140/155 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4777 event pairs, 6 based on Foata normal form. 2/835 useless extension candidates. Maximal degree in co-relation 1009. Up to 41 conditions per place. [2022-11-18 18:29:05,800 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 24 selfloop transitions, 9 changer transitions 0/432 dead transitions. [2022-11-18 18:29:05,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 432 transitions, 1030 flow [2022-11-18 18:29:05,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:29:05,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:29:05,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3635 transitions. [2022-11-18 18:29:05,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8276411657559198 [2022-11-18 18:29:05,805 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3635 transitions. [2022-11-18 18:29:05,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3635 transitions. [2022-11-18 18:29:05,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:05,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3635 transitions. [2022-11-18 18:29:05,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 403.8888888888889) internal successors, (3635), 9 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:05,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 488.0) internal successors, (4880), 10 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:05,816 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 488.0) internal successors, (4880), 10 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:05,816 INFO L175 Difference]: Start difference. First operand has 427 places, 421 transitions, 926 flow. Second operand 9 states and 3635 transitions. [2022-11-18 18:29:05,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 432 transitions, 1030 flow [2022-11-18 18:29:05,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 432 transitions, 1016 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:29:05,824 INFO L231 Difference]: Finished difference. Result has 436 places, 425 transitions, 972 flow [2022-11-18 18:29:05,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=972, PETRI_PLACES=436, PETRI_TRANSITIONS=425} [2022-11-18 18:29:05,825 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 12 predicate places. [2022-11-18 18:29:05,826 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 425 transitions, 972 flow [2022-11-18 18:29:05,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 402.7) internal successors, (4027), 10 states have internal predecessors, (4027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:05,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:05,827 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:05,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:06,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-11-18 18:29:06,033 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 18:29:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2136840763, now seen corresponding path program 2 times [2022-11-18 18:29:06,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:06,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566343416] [2022-11-18 18:29:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:06,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:06,094 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 18:29:06,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566343416] [2022-11-18 18:29:06,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566343416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:06,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:06,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:29:06,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555079413] [2022-11-18 18:29:06,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:06,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:29:06,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:06,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:29:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:29:06,098 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:06,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 425 transitions, 972 flow. Second operand has 4 states, 4 states have (on average 401.75) internal successors, (1607), 4 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:06,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:06,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:06,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:06,433 INFO L130 PetriNetUnfolder]: 29/904 cut-off events. [2022-11-18 18:29:06,433 INFO L131 PetriNetUnfolder]: For 151/264 co-relation queries the response was YES. [2022-11-18 18:29:06,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 904 events. 29/904 cut-off events. For 151/264 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4482 event pairs, 6 based on Foata normal form. 3/791 useless extension candidates. Maximal degree in co-relation 997. Up to 71 conditions per place. [2022-11-18 18:29:06,449 INFO L137 encePairwiseOnDemand]: 481/488 looper letters, 23 selfloop transitions, 4 changer transitions 0/432 dead transitions. [2022-11-18 18:29:06,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 432 transitions, 1040 flow [2022-11-18 18:29:06,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:29:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:29:06,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2030 transitions. [2022-11-18 18:29:06,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8319672131147541 [2022-11-18 18:29:06,452 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2030 transitions. [2022-11-18 18:29:06,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2030 transitions. [2022-11-18 18:29:06,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:06,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2030 transitions. [2022-11-18 18:29:06,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 406.0) internal successors, (2030), 5 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:06,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:06,458 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:06,459 INFO L175 Difference]: Start difference. First operand has 436 places, 425 transitions, 972 flow. Second operand 5 states and 2030 transitions. [2022-11-18 18:29:06,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 432 transitions, 1040 flow [2022-11-18 18:29:06,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 432 transitions, 1024 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-18 18:29:06,469 INFO L231 Difference]: Finished difference. Result has 439 places, 428 transitions, 988 flow [2022-11-18 18:29:06,469 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=988, PETRI_PLACES=439, PETRI_TRANSITIONS=428} [2022-11-18 18:29:06,470 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 15 predicate places. [2022-11-18 18:29:06,470 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 428 transitions, 988 flow [2022-11-18 18:29:06,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 401.75) internal successors, (1607), 4 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:06,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:06,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:06,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-18 18:29:06,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1706119944, now seen corresponding path program 1 times [2022-11-18 18:29:06,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:06,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274065298] [2022-11-18 18:29:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:06,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:06,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:06,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274065298] [2022-11-18 18:29:06,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274065298] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:06,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929382024] [2022-11-18 18:29:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:06,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:06,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:06,592 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:06,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 18:29:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:06,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 18:29:06,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:06,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:06,941 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:06,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929382024] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:06,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:06,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 18:29:06,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492747107] [2022-11-18 18:29:06,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:06,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:29:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:06,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:29:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:29:06,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:06,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 428 transitions, 988 flow. Second operand has 18 states, 18 states have (on average 403.05555555555554) internal successors, (7255), 18 states have internal predecessors, (7255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:06,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:06,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:06,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:07,559 INFO L130 PetriNetUnfolder]: 29/932 cut-off events. [2022-11-18 18:29:07,560 INFO L131 PetriNetUnfolder]: For 179/194 co-relation queries the response was YES. [2022-11-18 18:29:07,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 932 events. 29/932 cut-off events. For 179/194 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4469 event pairs, 6 based on Foata normal form. 4/830 useless extension candidates. Maximal degree in co-relation 980. Up to 41 conditions per place. [2022-11-18 18:29:07,585 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 40 selfloop transitions, 21 changer transitions 0/463 dead transitions. [2022-11-18 18:29:07,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 463 transitions, 1264 flow [2022-11-18 18:29:07,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:29:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 18:29:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8465 transitions. [2022-11-18 18:29:07,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8260148321623731 [2022-11-18 18:29:07,597 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8465 transitions. [2022-11-18 18:29:07,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8465 transitions. [2022-11-18 18:29:07,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:07,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8465 transitions. [2022-11-18 18:29:07,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 403.0952380952381) internal successors, (8465), 21 states have internal predecessors, (8465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:07,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 488.0) internal successors, (10736), 22 states have internal predecessors, (10736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:07,625 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 488.0) internal successors, (10736), 22 states have internal predecessors, (10736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:07,626 INFO L175 Difference]: Start difference. First operand has 439 places, 428 transitions, 988 flow. Second operand 21 states and 8465 transitions. [2022-11-18 18:29:07,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 463 transitions, 1264 flow [2022-11-18 18:29:07,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 463 transitions, 1262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:29:07,636 INFO L231 Difference]: Finished difference. Result has 463 places, 441 transitions, 1142 flow [2022-11-18 18:29:07,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1142, PETRI_PLACES=463, PETRI_TRANSITIONS=441} [2022-11-18 18:29:07,637 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 39 predicate places. [2022-11-18 18:29:07,638 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 441 transitions, 1142 flow [2022-11-18 18:29:07,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 403.05555555555554) internal successors, (7255), 18 states have internal predecessors, (7255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:07,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:07,640 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:07,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:07,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:07,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:07,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:07,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1318678648, now seen corresponding path program 2 times [2022-11-18 18:29:07,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:07,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517416337] [2022-11-18 18:29:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:07,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:08,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:08,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517416337] [2022-11-18 18:29:08,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517416337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:08,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795542859] [2022-11-18 18:29:08,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:29:08,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:08,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:08,136 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:08,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 18:29:08,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 18:29:08,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:29:08,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 18:29:08,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-18 18:29:08,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:29:08,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795542859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:08,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:29:08,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 18:29:08,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479324442] [2022-11-18 18:29:08,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:08,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:29:08,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:29:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:29:08,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2022-11-18 18:29:08,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 441 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 399.5) internal successors, (2397), 6 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:08,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:08,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2022-11-18 18:29:08,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:09,520 INFO L130 PetriNetUnfolder]: 249/2824 cut-off events. [2022-11-18 18:29:09,520 INFO L131 PetriNetUnfolder]: For 1006/1155 co-relation queries the response was YES. [2022-11-18 18:29:09,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3782 conditions, 2824 events. 249/2824 cut-off events. For 1006/1155 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 24754 event pairs, 42 based on Foata normal form. 3/2409 useless extension candidates. Maximal degree in co-relation 3591. Up to 191 conditions per place. [2022-11-18 18:29:09,575 INFO L137 encePairwiseOnDemand]: 481/488 looper letters, 45 selfloop transitions, 6 changer transitions 0/470 dead transitions. [2022-11-18 18:29:09,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 470 transitions, 1452 flow [2022-11-18 18:29:09,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:29:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:29:09,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2838 transitions. [2022-11-18 18:29:09,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8307962529274004 [2022-11-18 18:29:09,580 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2838 transitions. [2022-11-18 18:29:09,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2838 transitions. [2022-11-18 18:29:09,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:09,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2838 transitions. [2022-11-18 18:29:09,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 405.42857142857144) internal successors, (2838), 7 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:09,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 488.0) internal successors, (3904), 8 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:09,589 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 488.0) internal successors, (3904), 8 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:09,589 INFO L175 Difference]: Start difference. First operand has 463 places, 441 transitions, 1142 flow. Second operand 7 states and 2838 transitions. [2022-11-18 18:29:09,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 470 transitions, 1452 flow [2022-11-18 18:29:09,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 470 transitions, 1396 flow, removed 20 selfloop flow, removed 8 redundant places. [2022-11-18 18:29:09,602 INFO L231 Difference]: Finished difference. Result has 460 places, 440 transitions, 1096 flow [2022-11-18 18:29:09,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1096, PETRI_PLACES=460, PETRI_TRANSITIONS=440} [2022-11-18 18:29:09,603 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 36 predicate places. [2022-11-18 18:29:09,603 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 440 transitions, 1096 flow [2022-11-18 18:29:09,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.5) internal successors, (2397), 6 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:09,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:09,605 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:09,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:09,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:09,811 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:09,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:09,812 INFO L85 PathProgramCache]: Analyzing trace with hash -2128322610, now seen corresponding path program 1 times [2022-11-18 18:29:09,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:09,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082097587] [2022-11-18 18:29:09,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:09,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-18 18:29:09,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:09,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082097587] [2022-11-18 18:29:09,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082097587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:09,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:09,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:29:09,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956323211] [2022-11-18 18:29:09,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:09,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:29:09,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:09,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:29:09,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:29:09,892 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:09,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 440 transitions, 1096 flow. Second operand has 4 states, 4 states have (on average 403.75) internal successors, (1615), 4 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:09,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:09,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:09,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:10,154 INFO L130 PetriNetUnfolder]: 29/928 cut-off events. [2022-11-18 18:29:10,155 INFO L131 PetriNetUnfolder]: For 196/300 co-relation queries the response was YES. [2022-11-18 18:29:10,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 928 events. 29/928 cut-off events. For 196/300 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4441 event pairs, 6 based on Foata normal form. 15/839 useless extension candidates. Maximal degree in co-relation 1017. Up to 42 conditions per place. [2022-11-18 18:29:10,168 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 15 selfloop transitions, 8 changer transitions 0/440 dead transitions. [2022-11-18 18:29:10,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 440 transitions, 1140 flow [2022-11-18 18:29:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:29:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:29:10,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2021 transitions. [2022-11-18 18:29:10,175 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8282786885245902 [2022-11-18 18:29:10,175 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2021 transitions. [2022-11-18 18:29:10,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2021 transitions. [2022-11-18 18:29:10,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:10,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2021 transitions. [2022-11-18 18:29:10,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 404.2) internal successors, (2021), 5 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:10,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:10,189 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:10,189 INFO L175 Difference]: Start difference. First operand has 460 places, 440 transitions, 1096 flow. Second operand 5 states and 2021 transitions. [2022-11-18 18:29:10,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 440 transitions, 1140 flow [2022-11-18 18:29:10,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 440 transitions, 1128 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:29:10,199 INFO L231 Difference]: Finished difference. Result has 458 places, 440 transitions, 1104 flow [2022-11-18 18:29:10,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1104, PETRI_PLACES=458, PETRI_TRANSITIONS=440} [2022-11-18 18:29:10,200 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 34 predicate places. [2022-11-18 18:29:10,201 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 440 transitions, 1104 flow [2022-11-18 18:29:10,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 403.75) internal successors, (1615), 4 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:10,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:10,202 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:10,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-18 18:29:10,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:10,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:10,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2070632782, now seen corresponding path program 1 times [2022-11-18 18:29:10,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:10,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274112355] [2022-11-18 18:29:10,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:10,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:10,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:10,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274112355] [2022-11-18 18:29:10,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274112355] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:10,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550858664] [2022-11-18 18:29:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:10,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:10,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:10,468 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:10,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 18:29:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:10,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 18:29:10,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:10,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:29:11,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550858664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:11,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:11,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 18:29:11,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644358008] [2022-11-18 18:29:11,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:11,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 18:29:11,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:11,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 18:29:11,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 18:29:11,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:11,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 440 transitions, 1104 flow. Second operand has 23 states, 23 states have (on average 403.30434782608694) internal successors, (9276), 23 states have internal predecessors, (9276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:11,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:11,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:11,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:11,722 INFO L130 PetriNetUnfolder]: 29/949 cut-off events. [2022-11-18 18:29:11,722 INFO L131 PetriNetUnfolder]: For 296/311 co-relation queries the response was YES. [2022-11-18 18:29:11,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 949 events. 29/949 cut-off events. For 296/311 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4440 event pairs, 6 based on Foata normal form. 3/847 useless extension candidates. Maximal degree in co-relation 998. Up to 41 conditions per place. [2022-11-18 18:29:11,736 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 52 selfloop transitions, 30 changer transitions 0/483 dead transitions. [2022-11-18 18:29:11,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 483 transitions, 1454 flow [2022-11-18 18:29:11,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 18:29:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 18:29:11,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 12085 transitions. [2022-11-18 18:29:11,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8254781420765027 [2022-11-18 18:29:11,750 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 12085 transitions. [2022-11-18 18:29:11,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 12085 transitions. [2022-11-18 18:29:11,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:11,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 12085 transitions. [2022-11-18 18:29:11,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 402.8333333333333) internal successors, (12085), 30 states have internal predecessors, (12085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:11,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 488.0) internal successors, (15128), 31 states have internal predecessors, (15128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:11,830 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 488.0) internal successors, (15128), 31 states have internal predecessors, (15128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:11,831 INFO L175 Difference]: Start difference. First operand has 458 places, 440 transitions, 1104 flow. Second operand 30 states and 12085 transitions. [2022-11-18 18:29:11,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 483 transitions, 1454 flow [2022-11-18 18:29:11,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 483 transitions, 1442 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 18:29:11,840 INFO L231 Difference]: Finished difference. Result has 488 places, 450 transitions, 1246 flow [2022-11-18 18:29:11,841 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1246, PETRI_PLACES=488, PETRI_TRANSITIONS=450} [2022-11-18 18:29:11,841 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 64 predicate places. [2022-11-18 18:29:11,841 INFO L495 AbstractCegarLoop]: Abstraction has has 488 places, 450 transitions, 1246 flow [2022-11-18 18:29:11,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 403.30434782608694) internal successors, (9276), 23 states have internal predecessors, (9276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:11,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:11,843 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, 1, 1, 1] [2022-11-18 18:29:11,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:12,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-11-18 18:29:12,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:12,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:12,050 INFO L85 PathProgramCache]: Analyzing trace with hash -494414800, now seen corresponding path program 2 times [2022-11-18 18:29:12,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:12,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193670706] [2022-11-18 18:29:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:12,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:12,132 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 18:29:12,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:12,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193670706] [2022-11-18 18:29:12,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193670706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:12,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:12,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:29:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799630075] [2022-11-18 18:29:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:12,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:29:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:29:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:29:12,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:12,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 450 transitions, 1246 flow. Second operand has 5 states, 5 states have (on average 401.8) internal successors, (2009), 5 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:12,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:12,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:12,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:12,862 INFO L130 PetriNetUnfolder]: 198/2313 cut-off events. [2022-11-18 18:29:12,862 INFO L131 PetriNetUnfolder]: For 894/991 co-relation queries the response was YES. [2022-11-18 18:29:12,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 2313 events. 198/2313 cut-off events. For 894/991 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 18174 event pairs, 2 based on Foata normal form. 0/2025 useless extension candidates. Maximal degree in co-relation 2878. Up to 153 conditions per place. [2022-11-18 18:29:12,903 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 37 selfloop transitions, 5 changer transitions 0/473 dead transitions. [2022-11-18 18:29:12,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 473 transitions, 1496 flow [2022-11-18 18:29:12,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:29:12,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:29:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2443 transitions. [2022-11-18 18:29:12,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8343579234972678 [2022-11-18 18:29:12,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2443 transitions. [2022-11-18 18:29:12,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2443 transitions. [2022-11-18 18:29:12,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:12,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2443 transitions. [2022-11-18 18:29:12,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:12,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 488.0) internal successors, (3416), 7 states have internal predecessors, (3416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:12,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 488.0) internal successors, (3416), 7 states have internal predecessors, (3416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:12,914 INFO L175 Difference]: Start difference. First operand has 488 places, 450 transitions, 1246 flow. Second operand 6 states and 2443 transitions. [2022-11-18 18:29:12,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 473 transitions, 1496 flow [2022-11-18 18:29:12,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 473 transitions, 1450 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 18:29:12,925 INFO L231 Difference]: Finished difference. Result has 474 places, 449 transitions, 1208 flow [2022-11-18 18:29:12,926 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1208, PETRI_PLACES=474, PETRI_TRANSITIONS=449} [2022-11-18 18:29:12,926 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 50 predicate places. [2022-11-18 18:29:12,927 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 449 transitions, 1208 flow [2022-11-18 18:29:12,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 401.8) internal successors, (2009), 5 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:12,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:12,927 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:12,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-18 18:29:12,928 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:12,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash 64627438, now seen corresponding path program 1 times [2022-11-18 18:29:12,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:12,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071866204] [2022-11-18 18:29:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:13,027 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 18:29:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:13,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071866204] [2022-11-18 18:29:13,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071866204] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:13,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970373834] [2022-11-18 18:29:13,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:13,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:13,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:13,029 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:13,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 18:29:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:13,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:29:13,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:13,277 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 18:29:13,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:29:13,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970373834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:13,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:29:13,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 18:29:13,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757667412] [2022-11-18 18:29:13,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:13,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:29:13,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:29:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:29:13,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:13,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 449 transitions, 1208 flow. Second operand has 6 states, 6 states have (on average 402.6666666666667) internal successors, (2416), 6 states have internal predecessors, (2416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:13,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:13,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:13,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:13,686 INFO L130 PetriNetUnfolder]: 29/945 cut-off events. [2022-11-18 18:29:13,687 INFO L131 PetriNetUnfolder]: For 310/405 co-relation queries the response was YES. [2022-11-18 18:29:13,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1264 conditions, 945 events. 29/945 cut-off events. For 310/405 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4411 event pairs, 6 based on Foata normal form. 10/851 useless extension candidates. Maximal degree in co-relation 1019. Up to 51 conditions per place. [2022-11-18 18:29:13,713 INFO L137 encePairwiseOnDemand]: 483/488 looper letters, 19 selfloop transitions, 6 changer transitions 0/451 dead transitions. [2022-11-18 18:29:13,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 451 transitions, 1260 flow [2022-11-18 18:29:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:29:13,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:29:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2826 transitions. [2022-11-18 18:29:13,717 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8272833723653396 [2022-11-18 18:29:13,717 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2826 transitions. [2022-11-18 18:29:13,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2826 transitions. [2022-11-18 18:29:13,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:13,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2826 transitions. [2022-11-18 18:29:13,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 403.7142857142857) internal successors, (2826), 7 states have internal predecessors, (2826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:13,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 488.0) internal successors, (3904), 8 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:13,727 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 488.0) internal successors, (3904), 8 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:13,727 INFO L175 Difference]: Start difference. First operand has 474 places, 449 transitions, 1208 flow. Second operand 7 states and 2826 transitions. [2022-11-18 18:29:13,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 451 transitions, 1260 flow [2022-11-18 18:29:13,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 451 transitions, 1250 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:29:13,739 INFO L231 Difference]: Finished difference. Result has 474 places, 448 transitions, 1206 flow [2022-11-18 18:29:13,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1206, PETRI_PLACES=474, PETRI_TRANSITIONS=448} [2022-11-18 18:29:13,741 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 50 predicate places. [2022-11-18 18:29:13,741 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 448 transitions, 1206 flow [2022-11-18 18:29:13,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.6666666666667) internal successors, (2416), 6 states have internal predecessors, (2416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:13,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:13,742 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, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:13,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:13,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-11-18 18:29:13,949 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:13,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:13,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1368169784, now seen corresponding path program 1 times [2022-11-18 18:29:13,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:13,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203780371] [2022-11-18 18:29:13,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:14,037 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 18:29:14,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:14,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203780371] [2022-11-18 18:29:14,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203780371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:29:14,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393339297] [2022-11-18 18:29:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:14,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:29:14,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:14,039 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:29:14,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-18 18:29:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:14,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:29:14,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:14,288 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 18:29:14,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:29:14,325 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 18:29:14,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393339297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:29:14,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:29:14,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 18:29:14,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175181732] [2022-11-18 18:29:14,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:29:14,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:29:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:14,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:29:14,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:29:14,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 488 [2022-11-18 18:29:14,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 448 transitions, 1206 flow. Second operand has 10 states, 10 states have (on average 402.9) internal successors, (4029), 10 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:14,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:14,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 488 [2022-11-18 18:29:14,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:14,696 INFO L130 PetriNetUnfolder]: 25/841 cut-off events. [2022-11-18 18:29:14,696 INFO L131 PetriNetUnfolder]: For 330/366 co-relation queries the response was YES. [2022-11-18 18:29:14,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 841 events. 25/841 cut-off events. For 330/366 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3485 event pairs, 10 based on Foata normal form. 4/753 useless extension candidates. Maximal degree in co-relation 916. Up to 40 conditions per place. [2022-11-18 18:29:14,708 INFO L137 encePairwiseOnDemand]: 482/488 looper letters, 24 selfloop transitions, 9 changer transitions 0/459 dead transitions. [2022-11-18 18:29:14,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 459 transitions, 1310 flow [2022-11-18 18:29:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:29:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:29:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3635 transitions. [2022-11-18 18:29:14,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8276411657559198 [2022-11-18 18:29:14,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3635 transitions. [2022-11-18 18:29:14,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3635 transitions. [2022-11-18 18:29:14,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:14,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3635 transitions. [2022-11-18 18:29:14,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 403.8888888888889) internal successors, (3635), 9 states have internal predecessors, (3635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:14,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 488.0) internal successors, (4880), 10 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:14,723 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 488.0) internal successors, (4880), 10 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:14,723 INFO L175 Difference]: Start difference. First operand has 474 places, 448 transitions, 1206 flow. Second operand 9 states and 3635 transitions. [2022-11-18 18:29:14,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 459 transitions, 1310 flow [2022-11-18 18:29:14,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 459 transitions, 1297 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-18 18:29:14,734 INFO L231 Difference]: Finished difference. Result has 481 places, 452 transitions, 1253 flow [2022-11-18 18:29:14,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1253, PETRI_PLACES=481, PETRI_TRANSITIONS=452} [2022-11-18 18:29:14,735 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 57 predicate places. [2022-11-18 18:29:14,735 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 452 transitions, 1253 flow [2022-11-18 18:29:14,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 402.9) internal successors, (4029), 10 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:14,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:14,736 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, 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 18:29:14,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:14,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0866e4-57ee-477f-8abe-53e939127f22/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-11-18 18:29:14,942 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:14,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash 221597033, now seen corresponding path program 1 times [2022-11-18 18:29:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:14,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698301159] [2022-11-18 18:29:14,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:14,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-11-18 18:29:15,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:15,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698301159] [2022-11-18 18:29:15,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698301159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:15,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:15,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:29:15,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608434401] [2022-11-18 18:29:15,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:15,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:29:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:29:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:29:15,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2022-11-18 18:29:15,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 452 transitions, 1253 flow. Second operand has 6 states, 6 states have (on average 399.6666666666667) internal successors, (2398), 6 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:15,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:15,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2022-11-18 18:29:15,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:29:15,905 INFO L130 PetriNetUnfolder]: 223/2294 cut-off events. [2022-11-18 18:29:15,905 INFO L131 PetriNetUnfolder]: For 1137/1222 co-relation queries the response was YES. [2022-11-18 18:29:15,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3281 conditions, 2294 events. 223/2294 cut-off events. For 1137/1222 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 18354 event pairs, 49 based on Foata normal form. 4/1948 useless extension candidates. Maximal degree in co-relation 3035. Up to 191 conditions per place. [2022-11-18 18:29:15,957 INFO L137 encePairwiseOnDemand]: 481/488 looper letters, 40 selfloop transitions, 6 changer transitions 0/476 dead transitions. [2022-11-18 18:29:15,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 476 transitions, 1518 flow [2022-11-18 18:29:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:29:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:29:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2833 transitions. [2022-11-18 18:29:15,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8293325526932084 [2022-11-18 18:29:15,961 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2833 transitions. [2022-11-18 18:29:15,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2833 transitions. [2022-11-18 18:29:15,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:29:15,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2833 transitions. [2022-11-18 18:29:15,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 404.7142857142857) internal successors, (2833), 7 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:15,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 488.0) internal successors, (3904), 8 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:15,967 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 488.0) internal successors, (3904), 8 states have internal predecessors, (3904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:15,967 INFO L175 Difference]: Start difference. First operand has 481 places, 452 transitions, 1253 flow. Second operand 7 states and 2833 transitions. [2022-11-18 18:29:15,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 476 transitions, 1518 flow [2022-11-18 18:29:15,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 476 transitions, 1504 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-18 18:29:15,979 INFO L231 Difference]: Finished difference. Result has 482 places, 451 transitions, 1249 flow [2022-11-18 18:29:15,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1249, PETRI_PLACES=482, PETRI_TRANSITIONS=451} [2022-11-18 18:29:15,980 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 58 predicate places. [2022-11-18 18:29:15,980 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 451 transitions, 1249 flow [2022-11-18 18:29:15,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.6666666666667) internal successors, (2398), 6 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:15,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:29:15,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:15,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-18 18:29:15,982 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-18 18:29:15,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:15,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1620399212, now seen corresponding path program 1 times [2022-11-18 18:29:15,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:29:15,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059308102] [2022-11-18 18:29:15,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:15,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:29:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:16,443 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 18:29:16,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:29:16,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059308102] [2022-11-18 18:29:16,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059308102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:16,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:16,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:29:16,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152757469] [2022-11-18 18:29:16,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:16,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:29:16,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:29:16,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:29:16,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:29:16,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 488 [2022-11-18 18:29:16,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 451 transitions, 1249 flow. Second operand has 10 states, 10 states have (on average 353.4) internal successors, (3534), 10 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:29:16,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:29:16,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 488 [2022-11-18 18:29:16,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand