./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS --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 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- 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-4e7fbc6 [2022-11-23 03:42:05,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:42:05,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:42:05,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:42:05,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:42:05,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:42:05,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:42:05,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:42:05,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:42:05,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:42:05,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:42:05,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:42:05,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:42:05,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:42:05,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:42:05,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:42:05,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:42:05,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:42:05,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:42:05,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:42:05,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:42:05,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:42:05,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:42:05,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:42:05,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:42:05,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:42:05,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:42:05,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:42:05,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:42:05,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:42:05,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:42:05,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:42:05,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:42:05,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:42:05,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:42:05,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:42:05,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:42:05,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:42:05,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:42:05,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:42:05,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:42:05,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:42:05,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:42:05,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:42:05,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:42:05,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:42:05,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:42:05,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:42:05,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:42:05,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:42:05,922 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:42:05,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:42:05,923 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:42:05,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:42:05,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:42:05,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:42:05,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:42:05,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:42:05,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:42:05,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:42:05,924 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:42:05,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:42:05,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:42:05,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:42:05,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:42:05,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:42:05,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:42:05,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:42:05,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:42:05,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:42:05,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:42:05,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:42:05,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:42:05,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:42:05,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:42:05,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:42:05,930 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:42:05,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:42:05,932 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-23 03:42:06,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:42:06,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:42:06,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:42:06,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:42:06,276 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:42:06,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-23 03:42:09,343 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:42:09,561 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:42:09,562 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-23 03:42:09,569 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/data/c364ca4d7/089dd08aa583458db48b36026bc29b04/FLAG84a16da2f [2022-11-23 03:42:09,584 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/data/c364ca4d7/089dd08aa583458db48b36026bc29b04 [2022-11-23 03:42:09,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:42:09,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:42:09,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:42:09,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:42:09,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:42:09,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:09,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73be2fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09, skipping insertion in model container [2022-11-23 03:42:09,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:09,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:42:09,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:42:09,884 WARN L237 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_c41e69b6-8789-493c-8c4b-72677a572f53/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-23 03:42:09,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:42:09,914 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:42:09,958 WARN L237 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_c41e69b6-8789-493c-8c4b-72677a572f53/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-23 03:42:09,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:42:09,981 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:42:09,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09 WrapperNode [2022-11-23 03:42:09,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:42:09,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:42:09,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:42:09,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:42:09,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,043 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 479 [2022-11-23 03:42:10,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:42:10,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:42:10,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:42:10,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:42:10,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,080 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:42:10,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:42:10,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:42:10,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:42:10,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (1/1) ... [2022-11-23 03:42:10,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:42:10,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:42:10,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:42:10,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:42:10,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:42:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:42:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 03:42:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 03:42:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 03:42:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 03:42:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 03:42:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 03:42:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:42:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:42:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:42:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:42:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:42:10,178 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:42:10,312 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:42:10,314 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:42:11,418 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:42:11,450 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:42:11,450 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 03:42:11,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:11 BoogieIcfgContainer [2022-11-23 03:42:11,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:42:11,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:42:11,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:42:11,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:42:11,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:09" (1/3) ... [2022-11-23 03:42:11,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5729a50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:11, skipping insertion in model container [2022-11-23 03:42:11,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:09" (2/3) ... [2022-11-23 03:42:11,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5729a50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:11, skipping insertion in model container [2022-11-23 03:42:11,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:11" (3/3) ... [2022-11-23 03:42:11,471 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-23 03:42:11,484 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:42:11,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:42:11,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-23 03:42:11,495 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:42:11,690 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 03:42:11,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 620 places, 657 transitions, 1338 flow [2022-11-23 03:42:12,028 INFO L130 PetriNetUnfolder]: 47/654 cut-off events. [2022-11-23 03:42:12,028 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:42:12,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 654 events. 47/654 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1082 event pairs, 0 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-23 03:42:12,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 620 places, 657 transitions, 1338 flow [2022-11-23 03:42:12,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 633 transitions, 1281 flow [2022-11-23 03:42:12,064 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:42:12,093 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 633 transitions, 1281 flow [2022-11-23 03:42:12,097 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 633 transitions, 1281 flow [2022-11-23 03:42:12,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 633 transitions, 1281 flow [2022-11-23 03:42:12,337 INFO L130 PetriNetUnfolder]: 46/633 cut-off events. [2022-11-23 03:42:12,338 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:42:12,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 633 events. 46/633 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1079 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-23 03:42:12,361 INFO L119 LiptonReduction]: Number of co-enabled transitions 40128 [2022-11-23 03:42:50,946 INFO L134 LiptonReduction]: Checked pairs total: 49598 [2022-11-23 03:42:50,946 INFO L136 LiptonReduction]: Total number of compositions: 804 [2022-11-23 03:42:50,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:42:50,994 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;@1101c143, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:42:50,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-23 03:42:50,996 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 03:42:50,996 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:50,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:50,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 03:42:50,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:42:51,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2584, now seen corresponding path program 1 times [2022-11-23 03:42:51,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:51,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017158175] [2022-11-23 03:42:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:51,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:51,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:51,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017158175] [2022-11-23 03:42:51,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017158175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:51,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:51,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 03:42:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944754076] [2022-11-23 03:42:51,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:51,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:42:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:42:51,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:42:51,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 1461 [2022-11-23 03:42:51,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 179 flow. Second operand has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:51,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:51,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 1461 [2022-11-23 03:42:51,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:52,665 INFO L130 PetriNetUnfolder]: 4475/6364 cut-off events. [2022-11-23 03:42:52,666 INFO L131 PetriNetUnfolder]: For 323/323 co-relation queries the response was YES. [2022-11-23 03:42:52,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13071 conditions, 6364 events. 4475/6364 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30312 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12104. Up to 6365 conditions per place. [2022-11-23 03:42:52,706 INFO L137 encePairwiseOnDemand]: 1453/1461 looper letters, 74 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2022-11-23 03:42:52,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 311 flow [2022-11-23 03:42:52,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:42:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:42:52,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1324 transitions. [2022-11-23 03:42:52,726 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4531143052703628 [2022-11-23 03:42:52,727 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1324 transitions. [2022-11-23 03:42:52,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1324 transitions. [2022-11-23 03:42:52,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:52,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1324 transitions. [2022-11-23 03:42:52,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 662.0) internal successors, (1324), 2 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:52,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1461.0) internal successors, (4383), 3 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:52,758 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1461.0) internal successors, (4383), 3 states have internal predecessors, (4383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:52,760 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 179 flow. Second operand 2 states and 1324 transitions. [2022-11-23 03:42:52,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 311 flow [2022-11-23 03:42:52,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 74 transitions, 302 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-23 03:42:52,769 INFO L231 Difference]: Finished difference. Result has 70 places, 74 transitions, 154 flow [2022-11-23 03:42:52,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=70, PETRI_TRANSITIONS=74} [2022-11-23 03:42:52,775 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2022-11-23 03:42:52,775 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 74 transitions, 154 flow [2022-11-23 03:42:52,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:52,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:52,777 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:42:52,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:42:52,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:42:52,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash 82472, now seen corresponding path program 1 times [2022-11-23 03:42:52,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:52,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749530992] [2022-11-23 03:42:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:52,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749530992] [2022-11-23 03:42:52,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749530992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:52,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:52,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:52,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590393124] [2022-11-23 03:42:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:52,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:52,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:52,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:53,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-23 03:42:53,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:53,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:53,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-23 03:42:53,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:54,363 INFO L130 PetriNetUnfolder]: 4475/6362 cut-off events. [2022-11-23 03:42:54,363 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-23 03:42:54,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12981 conditions, 6362 events. 4475/6362 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30342 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12978. Up to 6362 conditions per place. [2022-11-23 03:42:54,396 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 71 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2022-11-23 03:42:54,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 294 flow [2022-11-23 03:42:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:54,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1913 transitions. [2022-11-23 03:42:54,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43645904631530913 [2022-11-23 03:42:54,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1913 transitions. [2022-11-23 03:42:54,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1913 transitions. [2022-11-23 03:42:54,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:54,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1913 transitions. [2022-11-23 03:42:54,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,446 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 154 flow. Second operand 3 states and 1913 transitions. [2022-11-23 03:42:54,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 294 flow [2022-11-23 03:42:54,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:42:54,449 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 152 flow [2022-11-23 03:42:54,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2022-11-23 03:42:54,450 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2022-11-23 03:42:54,450 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 152 flow [2022-11-23 03:42:54,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.6666666666666) internal successors, (1841), 3 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:54,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:42:54,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:42:54,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:42:54,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:54,453 INFO L85 PathProgramCache]: Analyzing trace with hash 82349, now seen corresponding path program 1 times [2022-11-23 03:42:54,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:54,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695171355] [2022-11-23 03:42:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:54,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:54,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:54,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695171355] [2022-11-23 03:42:54,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695171355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:54,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:54,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:54,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996818213] [2022-11-23 03:42:54,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:54,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:54,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:54,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:54,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:54,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:42:54,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:54,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:42:54,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:57,334 INFO L130 PetriNetUnfolder]: 8949/12717 cut-off events. [2022-11-23 03:42:57,334 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-23 03:42:57,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25947 conditions, 12717 events. 8949/12717 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 67866 event pairs, 7650 based on Foata normal form. 0/6679 useless extension candidates. Maximal degree in co-relation 25943. Up to 6363 conditions per place. [2022-11-23 03:42:57,400 INFO L137 encePairwiseOnDemand]: 1449/1461 looper letters, 131 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2022-11-23 03:42:57,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 137 transitions, 562 flow [2022-11-23 03:42:57,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1979 transitions. [2022-11-23 03:42:57,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4515172256445357 [2022-11-23 03:42:57,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1979 transitions. [2022-11-23 03:42:57,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1979 transitions. [2022-11-23 03:42:57,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:57,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1979 transitions. [2022-11-23 03:42:57,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.6666666666666) internal successors, (1979), 3 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:57,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:57,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:57,426 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 152 flow. Second operand 3 states and 1979 transitions. [2022-11-23 03:42:57,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 137 transitions, 562 flow [2022-11-23 03:42:57,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 137 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:42:57,429 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 207 flow [2022-11-23 03:42:57,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2022-11-23 03:42:57,430 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2022-11-23 03:42:57,431 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 207 flow [2022-11-23 03:42:57,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:57,432 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:57,432 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:42:57,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:42:57,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:42:57,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash 82470, now seen corresponding path program 1 times [2022-11-23 03:42:57,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:57,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444063575] [2022-11-23 03:42:57,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:57,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:57,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:57,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444063575] [2022-11-23 03:42:57,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444063575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:57,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:57,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:57,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794052269] [2022-11-23 03:42:57,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:57,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:57,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:57,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:57,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-23 03:42:57,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:57,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:57,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-23 03:42:57,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:59,802 INFO L130 PetriNetUnfolder]: 8949/12713 cut-off events. [2022-11-23 03:42:59,804 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-23 03:42:59,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25963 conditions, 12713 events. 8949/12713 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 67718 event pairs, 7650 based on Foata normal form. 2/6689 useless extension candidates. Maximal degree in co-relation 25958. Up to 12713 conditions per place. [2022-11-23 03:42:59,866 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 74 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2022-11-23 03:42:59,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 353 flow [2022-11-23 03:42:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:59,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1917 transitions. [2022-11-23 03:42:59,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43737166324435317 [2022-11-23 03:42:59,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1917 transitions. [2022-11-23 03:42:59,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1917 transitions. [2022-11-23 03:42:59,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:59,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1917 transitions. [2022-11-23 03:42:59,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 639.0) internal successors, (1917), 3 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,898 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 207 flow. Second operand 3 states and 1917 transitions. [2022-11-23 03:42:59,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 353 flow [2022-11-23 03:42:59,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:42:59,902 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 193 flow [2022-11-23 03:42:59,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2022-11-23 03:42:59,904 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2022-11-23 03:42:59,905 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 193 flow [2022-11-23 03:42:59,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:59,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:42:59,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:42:59,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:42:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2557203, now seen corresponding path program 1 times [2022-11-23 03:42:59,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:59,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338695763] [2022-11-23 03:42:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:59,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:59,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338695763] [2022-11-23 03:42:59,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338695763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:59,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:59,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:42:59,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634915022] [2022-11-23 03:42:59,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:59,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:59,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:59,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:59,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:43:00,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:43:00,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:00,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:00,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:43:00,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:01,760 INFO L130 PetriNetUnfolder]: 8949/12710 cut-off events. [2022-11-23 03:43:01,760 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-23 03:43:01,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25949 conditions, 12710 events. 8949/12710 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 67691 event pairs, 7650 based on Foata normal form. 0/6683 useless extension candidates. Maximal degree in co-relation 25944. Up to 12710 conditions per place. [2022-11-23 03:43:01,821 INFO L137 encePairwiseOnDemand]: 1457/1461 looper letters, 71 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2022-11-23 03:43:01,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 72 transitions, 325 flow [2022-11-23 03:43:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:43:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:43:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1906 transitions. [2022-11-23 03:43:01,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43486196668948207 [2022-11-23 03:43:01,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1906 transitions. [2022-11-23 03:43:01,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1906 transitions. [2022-11-23 03:43:01,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:01,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1906 transitions. [2022-11-23 03:43:01,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.3333333333334) internal successors, (1906), 3 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:01,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:01,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:01,842 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 193 flow. Second operand 3 states and 1906 transitions. [2022-11-23 03:43:01,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 72 transitions, 325 flow [2022-11-23 03:43:01,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:43:01,844 INFO L231 Difference]: Finished difference. Result has 69 places, 72 transitions, 182 flow [2022-11-23 03:43:01,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=69, PETRI_TRANSITIONS=72} [2022-11-23 03:43:01,845 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2022-11-23 03:43:01,845 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 72 transitions, 182 flow [2022-11-23 03:43:01,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:01,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:01,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:43:01,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:43:01,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:43:01,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:01,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2557202, now seen corresponding path program 1 times [2022-11-23 03:43:01,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:01,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008273821] [2022-11-23 03:43:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:01,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:01,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:01,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008273821] [2022-11-23 03:43:01,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008273821] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:43:01,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727795420] [2022-11-23 03:43:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:01,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:43:01,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:43:01,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:43:01,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:43:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:02,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:43:02,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:43:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:02,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:43:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:02,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727795420] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:43:02,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:43:02,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-23 03:43:02,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297522161] [2022-11-23 03:43:02,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:43:02,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:43:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:02,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:43:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:43:02,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1461 [2022-11-23 03:43:02,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 72 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 613.1428571428571) internal successors, (4292), 7 states have internal predecessors, (4292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:02,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:02,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1461 [2022-11-23 03:43:02,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:07,547 INFO L130 PetriNetUnfolder]: 22371/31769 cut-off events. [2022-11-23 03:43:07,547 INFO L131 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2022-11-23 03:43:07,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64845 conditions, 31769 events. 22371/31769 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191585 event pairs, 19125 based on Foata normal form. 0/16706 useless extension candidates. Maximal degree in co-relation 64840. Up to 6359 conditions per place. [2022-11-23 03:43:07,661 INFO L137 encePairwiseOnDemand]: 1452/1461 looper letters, 298 selfloop transitions, 21 changer transitions 0/319 dead transitions. [2022-11-23 03:43:07,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 319 transitions, 1368 flow [2022-11-23 03:43:07,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:43:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:43:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4000 transitions. [2022-11-23 03:43:07,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4563084645220169 [2022-11-23 03:43:07,672 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4000 transitions. [2022-11-23 03:43:07,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4000 transitions. [2022-11-23 03:43:07,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:07,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4000 transitions. [2022-11-23 03:43:07,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 666.6666666666666) internal successors, (4000), 6 states have internal predecessors, (4000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:07,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1461.0) internal successors, (10227), 7 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:07,701 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1461.0) internal successors, (10227), 7 states have internal predecessors, (10227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:07,702 INFO L175 Difference]: Start difference. First operand has 69 places, 72 transitions, 182 flow. Second operand 6 states and 4000 transitions. [2022-11-23 03:43:07,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 319 transitions, 1368 flow [2022-11-23 03:43:07,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 319 transitions, 1367 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:43:07,707 INFO L231 Difference]: Finished difference. Result has 76 places, 87 transitions, 331 flow [2022-11-23 03:43:07,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=76, PETRI_TRANSITIONS=87} [2022-11-23 03:43:07,708 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -6 predicate places. [2022-11-23 03:43:07,708 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 87 transitions, 331 flow [2022-11-23 03:43:07,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 613.1428571428571) internal successors, (4292), 7 states have internal predecessors, (4292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:07,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:07,711 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:43:07,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:43:07,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41e69b6-8789-493c-8c4b-72677a572f53/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 03:43:07,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:43:07,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2561141, now seen corresponding path program 1 times [2022-11-23 03:43:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:07,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506417109] [2022-11-23 03:43:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:07,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:07,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:07,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:07,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506417109] [2022-11-23 03:43:07,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506417109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:07,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:07,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:43:07,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605100994] [2022-11-23 03:43:07,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:07,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:43:07,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:43:07,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:43:08,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-23 03:43:08,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 87 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:08,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:08,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-23 03:43:08,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:12,499 INFO L130 PetriNetUnfolder]: 22371/31759 cut-off events. [2022-11-23 03:43:12,499 INFO L131 PetriNetUnfolder]: For 320/320 co-relation queries the response was YES. [2022-11-23 03:43:12,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64876 conditions, 31759 events. 22371/31759 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191502 event pairs, 19125 based on Foata normal form. 0/16715 useless extension candidates. Maximal degree in co-relation 64868. Up to 31759 conditions per place. [2022-11-23 03:43:12,628 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 84 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2022-11-23 03:43:12,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 85 transitions, 497 flow [2022-11-23 03:43:12,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:43:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:43:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1912 transitions. [2022-11-23 03:43:12,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43623089208304816 [2022-11-23 03:43:12,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1912 transitions. [2022-11-23 03:43:12,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1912 transitions. [2022-11-23 03:43:12,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:12,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1912 transitions. [2022-11-23 03:43:12,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:12,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:12,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:12,648 INFO L175 Difference]: Start difference. First operand has 76 places, 87 transitions, 331 flow. Second operand 3 states and 1912 transitions. [2022-11-23 03:43:12,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 85 transitions, 497 flow [2022-11-23 03:43:12,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 85 transitions, 467 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-23 03:43:12,651 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 299 flow [2022-11-23 03:43:12,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2022-11-23 03:43:12,652 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -7 predicate places. [2022-11-23 03:43:12,653 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 299 flow [2022-11-23 03:43:12,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:12,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:12,654 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:43:12,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:43:12,654 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:43:12,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2561191, now seen corresponding path program 1 times [2022-11-23 03:43:12,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:12,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836526653] [2022-11-23 03:43:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:12,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:12,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:12,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836526653] [2022-11-23 03:43:12,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836526653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:12,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:12,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:43:12,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951958277] [2022-11-23 03:43:12,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:12,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:43:12,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:12,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:43:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:43:12,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-23 03:43:12,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:12,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:12,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-23 03:43:12,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:17,652 INFO L130 PetriNetUnfolder]: 22371/31749 cut-off events. [2022-11-23 03:43:17,653 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-23 03:43:17,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64840 conditions, 31749 events. 22371/31749 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191441 event pairs, 19125 based on Foata normal form. 5/16717 useless extension candidates. Maximal degree in co-relation 64831. Up to 31749 conditions per place. [2022-11-23 03:43:17,806 INFO L137 encePairwiseOnDemand]: 1458/1461 looper letters, 82 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2022-11-23 03:43:17,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 83 transitions, 461 flow [2022-11-23 03:43:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:43:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:43:17,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1904 transitions. [2022-11-23 03:43:17,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4344056582249601 [2022-11-23 03:43:17,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1904 transitions. [2022-11-23 03:43:17,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1904 transitions. [2022-11-23 03:43:17,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:17,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1904 transitions. [2022-11-23 03:43:17,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 634.6666666666666) internal successors, (1904), 3 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:17,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:17,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:17,825 INFO L175 Difference]: Start difference. First operand has 75 places, 85 transitions, 299 flow. Second operand 3 states and 1904 transitions. [2022-11-23 03:43:17,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 83 transitions, 461 flow [2022-11-23 03:43:17,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 83 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:43:17,828 INFO L231 Difference]: Finished difference. Result has 74 places, 83 transitions, 296 flow [2022-11-23 03:43:17,829 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=74, PETRI_TRANSITIONS=83} [2022-11-23 03:43:17,829 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-11-23 03:43:17,830 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 83 transitions, 296 flow [2022-11-23 03:43:17,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:17,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:17,831 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:43:17,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:43:17,831 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:43:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 79402964, now seen corresponding path program 1 times [2022-11-23 03:43:17,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:17,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872201544] [2022-11-23 03:43:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:17,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:17,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:17,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872201544] [2022-11-23 03:43:17,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872201544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:17,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:17,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:43:17,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060238001] [2022-11-23 03:43:17,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:17,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:43:17,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:17,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:43:17,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:43:17,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 613 out of 1461 [2022-11-23 03:43:17,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:17,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:17,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 613 of 1461 [2022-11-23 03:43:17,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:22,480 INFO L130 PetriNetUnfolder]: 22371/31744 cut-off events. [2022-11-23 03:43:22,480 INFO L131 PetriNetUnfolder]: For 324/324 co-relation queries the response was YES. [2022-11-23 03:43:22,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64831 conditions, 31744 events. 22371/31744 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 1247. Compared 191380 event pairs, 19125 based on Foata normal form. 0/16712 useless extension candidates. Maximal degree in co-relation 64822. Up to 31744 conditions per place. [2022-11-23 03:43:22,626 INFO L137 encePairwiseOnDemand]: 1459/1461 looper letters, 81 selfloop transitions, 1 changer transitions 0/82 dead transitions. [2022-11-23 03:43:22,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 82 transitions, 458 flow [2022-11-23 03:43:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:43:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:43:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1902 transitions. [2022-11-23 03:43:22,631 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43394934976043803 [2022-11-23 03:43:22,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1902 transitions. [2022-11-23 03:43:22,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1902 transitions. [2022-11-23 03:43:22,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:22,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1902 transitions. [2022-11-23 03:43:22,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1461.0) internal successors, (5844), 4 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,644 INFO L175 Difference]: Start difference. First operand has 74 places, 83 transitions, 296 flow. Second operand 3 states and 1902 transitions. [2022-11-23 03:43:22,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 82 transitions, 458 flow [2022-11-23 03:43:22,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 82 transitions, 457 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:43:22,647 INFO L231 Difference]: Finished difference. Result has 74 places, 82 transitions, 295 flow [2022-11-23 03:43:22,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1461, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=74, PETRI_TRANSITIONS=82} [2022-11-23 03:43:22,648 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2022-11-23 03:43:22,648 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 82 transitions, 295 flow [2022-11-23 03:43:22,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:22,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:43:22,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:43:22,650 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-23 03:43:22,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash 79402963, now seen corresponding path program 1 times [2022-11-23 03:43:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:22,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737415788] [2022-11-23 03:43:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:22,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:22,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:22,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737415788] [2022-11-23 03:43:22,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737415788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:22,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:22,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:43:22,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281613791] [2022-11-23 03:43:22,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:22,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:43:22,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:22,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:43:22,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:43:22,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1461 [2022-11-23 03:43:22,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 82 transitions, 295 flow. Second operand has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:22,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1461 [2022-11-23 03:43:22,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand