./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:06:19,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:06:19,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:06:19,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:06:19,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:06:19,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:06:19,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:06:19,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:06:19,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:06:19,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:06:19,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:06:19,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:06:19,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:06:19,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:06:19,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:06:19,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:06:19,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:06:19,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:06:19,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:06:19,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:06:19,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:06:19,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:06:19,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:06:19,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:06:19,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:06:19,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:06:19,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:06:19,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:06:19,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:06:19,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:06:19,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:06:19,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:06:19,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:06:19,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:06:19,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:06:19,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:06:19,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:06:19,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:06:19,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:06:19,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:06:19,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:06:19,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 21:06:19,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:06:19,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:06:19,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:06:19,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:06:19,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:06:19,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:06:19,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:06:19,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:06:19,950 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:06:19,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:06:19,952 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:06:19,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:06:19,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:06:19,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:06:19,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:06:19,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:06:19,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:06:19,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:06:19,953 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 21:06:19,953 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:06:19,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:06:19,954 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:06:19,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:06:19,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:06:19,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:06:19,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:06:19,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:19,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:06:19,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:06:19,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:06:19,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:06:19,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:06:19,958 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:06:19,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:06:19,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:06:19,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2022-11-18 21:06:20,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:06:20,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:06:20,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:06:20,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:06:20,294 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:06:20,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-18 21:06:20,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/data/63bc4620a/7d340271b8484af39aac7f2b347d1afd/FLAG377f2606b [2022-11-18 21:06:20,977 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:06:20,983 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-18 21:06:20,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/data/63bc4620a/7d340271b8484af39aac7f2b347d1afd/FLAG377f2606b [2022-11-18 21:06:21,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/data/63bc4620a/7d340271b8484af39aac7f2b347d1afd [2022-11-18 21:06:21,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:06:21,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:06:21,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:21,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:06:21,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:06:21,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eda1564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21, skipping insertion in model container [2022-11-18 21:06:21,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:06:21,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:06:21,669 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-18 21:06:21,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:21,683 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:06:21,751 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-18 21:06:21,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:21,770 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:06:21,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21 WrapperNode [2022-11-18 21:06:21,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:21,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:21,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:06:21,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:06:21,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,866 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1656 [2022-11-18 21:06:21,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:21,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:06:21,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:06:21,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:06:21,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:21,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:22,015 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:22,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:22,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:06:22,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:06:22,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:06:22,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:06:22,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (1/1) ... [2022-11-18 21:06:22,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:22,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:22,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:06:22,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:06:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:06:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:06:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:06:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:06:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:06:22,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:06:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 21:06:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 21:06:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:06:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 21:06:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 21:06:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:06:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:06:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:06:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:06:22,122 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:06:22,305 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:06:22,307 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:06:24,495 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:06:27,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:06:27,524 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-18 21:06:27,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:27 BoogieIcfgContainer [2022-11-18 21:06:27,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:06:27,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:06:27,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:06:27,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:06:27,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:06:21" (1/3) ... [2022-11-18 21:06:27,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2874b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:27, skipping insertion in model container [2022-11-18 21:06:27,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:21" (2/3) ... [2022-11-18 21:06:27,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2874b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:27, skipping insertion in model container [2022-11-18 21:06:27,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:27" (3/3) ... [2022-11-18 21:06:27,537 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-11-18 21:06:27,547 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:06:27,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:06:27,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-11-18 21:06:27,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:06:28,600 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 21:06:28,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 563 transitions, 1142 flow [2022-11-18 21:06:28,991 INFO L130 PetriNetUnfolder]: 53/561 cut-off events. [2022-11-18 21:06:28,992 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 21:06:29,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 561 events. 53/561 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 981 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-11-18 21:06:29,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 563 transitions, 1142 flow [2022-11-18 21:06:29,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 543 transitions, 1098 flow [2022-11-18 21:06:29,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:06:29,046 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;@4233a8ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:06:29,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-11-18 21:06:29,058 INFO L130 PetriNetUnfolder]: 3/69 cut-off events. [2022-11-18 21:06:29,059 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:06:29,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:29,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:29,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:06:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:29,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1034571749, now seen corresponding path program 1 times [2022-11-18 21:06:29,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:29,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747154666] [2022-11-18 21:06:29,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:29,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:29,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:29,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747154666] [2022-11-18 21:06:29,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747154666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:29,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:29,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:06:29,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824461729] [2022-11-18 21:06:29,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:29,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:06:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:29,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:06:29,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:06:29,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-18 21:06:29,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 543 transitions, 1098 flow. Second operand has 4 states, 4 states have (on average 358.5) internal successors, (1434), 4 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:29,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:29,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-18 21:06:29,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:34,614 INFO L130 PetriNetUnfolder]: 1599/4216 cut-off events. [2022-11-18 21:06:34,614 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-11-18 21:06:34,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7071 conditions, 4216 events. 1599/4216 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 35274 event pairs, 880 based on Foata normal form. 196/2476 useless extension candidates. Maximal degree in co-relation 3027. Up to 1380 conditions per place. [2022-11-18 21:06:34,646 INFO L137 encePairwiseOnDemand]: 460/563 looper letters, 246 selfloop transitions, 39 changer transitions 20/626 dead transitions. [2022-11-18 21:06:34,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 626 transitions, 1850 flow [2022-11-18 21:06:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:06:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 21:06:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2168 transitions. [2022-11-18 21:06:34,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7701598579040853 [2022-11-18 21:06:34,668 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2168 transitions. [2022-11-18 21:06:34,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2168 transitions. [2022-11-18 21:06:34,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:34,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2168 transitions. [2022-11-18 21:06:34,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 433.6) internal successors, (2168), 5 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:34,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 563.0) internal successors, (3378), 6 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:34,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 563.0) internal successors, (3378), 6 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:34,702 INFO L175 Difference]: Start difference. First operand has 498 places, 543 transitions, 1098 flow. Second operand 5 states and 2168 transitions. [2022-11-18 21:06:34,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 626 transitions, 1850 flow [2022-11-18 21:06:34,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 626 transitions, 1834 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:06:34,722 INFO L231 Difference]: Finished difference. Result has 481 places, 507 transitions, 1244 flow [2022-11-18 21:06:34,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1244, PETRI_PLACES=481, PETRI_TRANSITIONS=507} [2022-11-18 21:06:34,728 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -17 predicate places. [2022-11-18 21:06:34,729 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 507 transitions, 1244 flow [2022-11-18 21:06:34,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 358.5) internal successors, (1434), 4 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:34,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:34,730 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:34,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:06:34,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:06:34,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:34,732 INFO L85 PathProgramCache]: Analyzing trace with hash 760478115, now seen corresponding path program 1 times [2022-11-18 21:06:34,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:34,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420226656] [2022-11-18 21:06:34,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:34,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:35,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420226656] [2022-11-18 21:06:35,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420226656] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104145945] [2022-11-18 21:06:35,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:35,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:35,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:35,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:35,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:06:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:35,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:06:35,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:06:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:35,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:06:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:36,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104145945] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:06:36,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:06:36,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 21:06:36,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084517931] [2022-11-18 21:06:36,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:06:36,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 21:06:36,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:36,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 21:06:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:06:36,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-18 21:06:36,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 507 transitions, 1244 flow. Second operand has 12 states, 12 states have (on average 359.6666666666667) internal successors, (4316), 12 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:36,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:36,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-18 21:06:36,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:45,690 INFO L130 PetriNetUnfolder]: 3996/10219 cut-off events. [2022-11-18 21:06:45,691 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2022-11-18 21:06:45,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17332 conditions, 10219 events. 3996/10219 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 94773 event pairs, 2200 based on Foata normal form. 24/5483 useless extension candidates. Maximal degree in co-relation 12724. Up to 1360 conditions per place. [2022-11-18 21:06:45,750 INFO L137 encePairwiseOnDemand]: 500/563 looper letters, 519 selfloop transitions, 172 changer transitions 0/1012 dead transitions. [2022-11-18 21:06:45,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1012 transitions, 3866 flow [2022-11-18 21:06:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 21:06:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 21:06:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 7141 transitions. [2022-11-18 21:06:45,767 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7046575883165581 [2022-11-18 21:06:45,768 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 7141 transitions. [2022-11-18 21:06:45,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 7141 transitions. [2022-11-18 21:06:45,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:45,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 7141 transitions. [2022-11-18 21:06:45,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 396.72222222222223) internal successors, (7141), 18 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:45,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 563.0) internal successors, (10697), 19 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:45,816 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 563.0) internal successors, (10697), 19 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:45,816 INFO L175 Difference]: Start difference. First operand has 481 places, 507 transitions, 1244 flow. Second operand 18 states and 7141 transitions. [2022-11-18 21:06:45,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1012 transitions, 3866 flow [2022-11-18 21:06:45,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1012 transitions, 3843 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:06:45,837 INFO L231 Difference]: Finished difference. Result has 482 places, 624 transitions, 2251 flow [2022-11-18 21:06:45,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2251, PETRI_PLACES=482, PETRI_TRANSITIONS=624} [2022-11-18 21:06:45,839 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -16 predicate places. [2022-11-18 21:06:45,840 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 624 transitions, 2251 flow [2022-11-18 21:06:45,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 359.6666666666667) internal successors, (4316), 12 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:45,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:45,843 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:45,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 21:06:46,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:46,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:06:46,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2099990545, now seen corresponding path program 1 times [2022-11-18 21:06:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:46,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719399913] [2022-11-18 21:06:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:46,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:46,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:46,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719399913] [2022-11-18 21:06:46,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719399913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:46,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630961428] [2022-11-18 21:06:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:46,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:46,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:46,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:46,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:06:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:46,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:06:46,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:06:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:47,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:06:47,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630961428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:47,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:06:47,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 21:06:47,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619357371] [2022-11-18 21:06:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:47,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:06:47,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:47,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:06:47,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:06:47,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-18 21:06:47,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 624 transitions, 2251 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:47,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:47,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-18 21:06:47,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:06:54,548 INFO L130 PetriNetUnfolder]: 3996/10187 cut-off events. [2022-11-18 21:06:54,548 INFO L131 PetriNetUnfolder]: For 670/670 co-relation queries the response was YES. [2022-11-18 21:06:54,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17483 conditions, 10187 events. 3996/10187 cut-off events. For 670/670 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 94335 event pairs, 2200 based on Foata normal form. 32/5459 useless extension candidates. Maximal degree in co-relation 13865. Up to 5228 conditions per place. [2022-11-18 21:06:54,621 INFO L137 encePairwiseOnDemand]: 516/563 looper letters, 247 selfloop transitions, 123 changer transitions 0/691 dead transitions. [2022-11-18 21:06:54,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 691 transitions, 2992 flow [2022-11-18 21:06:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:06:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 21:06:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2784 transitions. [2022-11-18 21:06:54,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7064196904339001 [2022-11-18 21:06:54,629 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2784 transitions. [2022-11-18 21:06:54,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2784 transitions. [2022-11-18 21:06:54,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:06:54,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2784 transitions. [2022-11-18 21:06:54,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 397.7142857142857) internal successors, (2784), 7 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:54,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 563.0) internal successors, (4504), 8 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:54,647 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 563.0) internal successors, (4504), 8 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:54,647 INFO L175 Difference]: Start difference. First operand has 482 places, 624 transitions, 2251 flow. Second operand 7 states and 2784 transitions. [2022-11-18 21:06:54,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 691 transitions, 2992 flow [2022-11-18 21:06:54,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 691 transitions, 2666 flow, removed 116 selfloop flow, removed 5 redundant places. [2022-11-18 21:06:54,667 INFO L231 Difference]: Finished difference. Result has 471 places, 592 transitions, 1955 flow [2022-11-18 21:06:54,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1709, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1955, PETRI_PLACES=471, PETRI_TRANSITIONS=592} [2022-11-18 21:06:54,669 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -27 predicate places. [2022-11-18 21:06:54,670 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 592 transitions, 1955 flow [2022-11-18 21:06:54,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:54,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:06:54,671 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:54,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:06:54,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:54,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:06:54,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:54,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1273459867, now seen corresponding path program 2 times [2022-11-18 21:06:54,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:54,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999378970] [2022-11-18 21:06:54,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:54,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:55,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:55,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999378970] [2022-11-18 21:06:55,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999378970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:06:55,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389115857] [2022-11-18 21:06:55,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:06:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:06:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:55,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:06:55,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 21:06:56,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:06:56,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:06:56,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:06:56,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:06:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-18 21:06:56,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:06:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-18 21:06:56,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389115857] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:06:56,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:06:56,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 17 [2022-11-18 21:06:56,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231908860] [2022-11-18 21:06:56,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:06:56,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 21:06:56,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:56,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 21:06:56,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-18 21:06:56,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-18 21:06:56,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 592 transitions, 1955 flow. Second operand has 18 states, 18 states have (on average 321.0) internal successors, (5778), 18 states have internal predecessors, (5778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:56,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:06:56,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-18 21:06:56,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:07:08,435 INFO L130 PetriNetUnfolder]: 5588/14015 cut-off events. [2022-11-18 21:07:08,435 INFO L131 PetriNetUnfolder]: For 692/692 co-relation queries the response was YES. [2022-11-18 21:07:08,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23994 conditions, 14015 events. 5588/14015 cut-off events. For 692/692 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 133342 event pairs, 3080 based on Foata normal form. 10/7367 useless extension candidates. Maximal degree in co-relation 19075. Up to 1288 conditions per place. [2022-11-18 21:07:08,522 INFO L137 encePairwiseOnDemand]: 496/563 looper letters, 683 selfloop transitions, 210 changer transitions 0/1174 dead transitions. [2022-11-18 21:07:08,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1174 transitions, 5007 flow [2022-11-18 21:07:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-18 21:07:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-11-18 21:07:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 15485 transitions. [2022-11-18 21:07:08,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5979226195072979 [2022-11-18 21:07:08,557 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 15485 transitions. [2022-11-18 21:07:08,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 15485 transitions. [2022-11-18 21:07:08,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:07:08,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 15485 transitions. [2022-11-18 21:07:08,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 336.6304347826087) internal successors, (15485), 46 states have internal predecessors, (15485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:08,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 563.0) internal successors, (26461), 47 states have internal predecessors, (26461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:08,652 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 563.0) internal successors, (26461), 47 states have internal predecessors, (26461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:08,653 INFO L175 Difference]: Start difference. First operand has 471 places, 592 transitions, 1955 flow. Second operand 46 states and 15485 transitions. [2022-11-18 21:07:08,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1174 transitions, 5007 flow [2022-11-18 21:07:08,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1174 transitions, 4769 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-18 21:07:08,676 INFO L231 Difference]: Finished difference. Result has 501 places, 631 transitions, 2296 flow [2022-11-18 21:07:08,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=2296, PETRI_PLACES=501, PETRI_TRANSITIONS=631} [2022-11-18 21:07:08,679 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 3 predicate places. [2022-11-18 21:07:08,679 INFO L495 AbstractCegarLoop]: Abstraction has has 501 places, 631 transitions, 2296 flow [2022-11-18 21:07:08,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 321.0) internal successors, (5778), 18 states have internal predecessors, (5778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:08,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:07:08,681 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:07:08,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:08,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:08,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:07:08,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:08,890 INFO L85 PathProgramCache]: Analyzing trace with hash 974030273, now seen corresponding path program 1 times [2022-11-18 21:07:08,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:08,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793845317] [2022-11-18 21:07:08,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:08,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:07:09,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:09,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793845317] [2022-11-18 21:07:09,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793845317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:09,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:09,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:07:09,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062971331] [2022-11-18 21:07:09,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:09,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:07:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:09,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:07:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:07:09,204 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-18 21:07:09,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 631 transitions, 2296 flow. Second operand has 5 states, 5 states have (on average 370.2) internal successors, (1851), 5 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:09,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:07:09,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-18 21:07:09,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:07:16,869 INFO L130 PetriNetUnfolder]: 4793/12124 cut-off events. [2022-11-18 21:07:16,870 INFO L131 PetriNetUnfolder]: For 877/877 co-relation queries the response was YES. [2022-11-18 21:07:16,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20800 conditions, 12124 events. 4793/12124 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 113432 event pairs, 2640 based on Foata normal form. 4/6462 useless extension candidates. Maximal degree in co-relation 19586. Up to 7779 conditions per place. [2022-11-18 21:07:16,936 INFO L137 encePairwiseOnDemand]: 541/563 looper letters, 251 selfloop transitions, 36 changer transitions 0/634 dead transitions. [2022-11-18 21:07:16,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 634 transitions, 2865 flow [2022-11-18 21:07:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:07:16,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:07:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2022-11-18 21:07:16,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6859088217880402 [2022-11-18 21:07:16,942 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2317 transitions. [2022-11-18 21:07:16,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2317 transitions. [2022-11-18 21:07:16,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:07:16,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2317 transitions. [2022-11-18 21:07:16,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:16,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:16,953 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:16,953 INFO L175 Difference]: Start difference. First operand has 501 places, 631 transitions, 2296 flow. Second operand 6 states and 2317 transitions. [2022-11-18 21:07:16,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 634 transitions, 2865 flow [2022-11-18 21:07:16,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 634 transitions, 2440 flow, removed 25 selfloop flow, removed 16 redundant places. [2022-11-18 21:07:16,968 INFO L231 Difference]: Finished difference. Result has 491 places, 626 transitions, 1926 flow [2022-11-18 21:07:16,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1926, PETRI_PLACES=491, PETRI_TRANSITIONS=626} [2022-11-18 21:07:16,970 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -7 predicate places. [2022-11-18 21:07:16,970 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 626 transitions, 1926 flow [2022-11-18 21:07:16,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 370.2) internal successors, (1851), 5 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:16,971 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:07:16,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:07:16,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:07:16,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:07:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1238238652, now seen corresponding path program 1 times [2022-11-18 21:07:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:16,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404911745] [2022-11-18 21:07:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:16,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:17,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:07:17,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:17,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404911745] [2022-11-18 21:07:17,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404911745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:17,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:17,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:07:17,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775189449] [2022-11-18 21:07:17,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:17,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:07:17,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:07:17,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:07:17,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-18 21:07:17,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 626 transitions, 1926 flow. Second operand has 5 states, 5 states have (on average 373.4) internal successors, (1867), 5 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:17,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:07:17,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-18 21:07:17,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:07:25,265 INFO L130 PetriNetUnfolder]: 4789/12084 cut-off events. [2022-11-18 21:07:25,266 INFO L131 PetriNetUnfolder]: For 467/467 co-relation queries the response was YES. [2022-11-18 21:07:25,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20595 conditions, 12084 events. 4789/12084 cut-off events. For 467/467 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 112838 event pairs, 2640 based on Foata normal form. 4/6422 useless extension candidates. Maximal degree in co-relation 19385. Up to 7814 conditions per place. [2022-11-18 21:07:25,328 INFO L137 encePairwiseOnDemand]: 541/563 looper letters, 244 selfloop transitions, 38 changer transitions 0/629 dead transitions. [2022-11-18 21:07:25,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 629 transitions, 2488 flow [2022-11-18 21:07:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:07:25,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:07:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2022-11-18 21:07:25,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6859088217880402 [2022-11-18 21:07:25,334 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2317 transitions. [2022-11-18 21:07:25,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2317 transitions. [2022-11-18 21:07:25,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:07:25,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2317 transitions. [2022-11-18 21:07:25,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:25,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:25,346 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:25,346 INFO L175 Difference]: Start difference. First operand has 491 places, 626 transitions, 1926 flow. Second operand 6 states and 2317 transitions. [2022-11-18 21:07:25,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 629 transitions, 2488 flow [2022-11-18 21:07:25,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 629 transitions, 2426 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:07:25,360 INFO L231 Difference]: Finished difference. Result has 492 places, 621 transitions, 1930 flow [2022-11-18 21:07:25,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1838, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1930, PETRI_PLACES=492, PETRI_TRANSITIONS=621} [2022-11-18 21:07:25,362 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -6 predicate places. [2022-11-18 21:07:25,362 INFO L495 AbstractCegarLoop]: Abstraction has has 492 places, 621 transitions, 1930 flow [2022-11-18 21:07:25,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 373.4) internal successors, (1867), 5 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:25,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:07:25,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:07:25,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:07:25,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-18 21:07:25,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:25,364 INFO L85 PathProgramCache]: Analyzing trace with hash -730948457, now seen corresponding path program 1 times [2022-11-18 21:07:25,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:25,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046774820] [2022-11-18 21:07:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:25,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 21:07:25,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:25,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046774820] [2022-11-18 21:07:25,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046774820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:07:25,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76065486] [2022-11-18 21:07:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:25,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:07:25,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:25,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:07:25,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_996b575f-c038-41fc-acdf-0c41355e2f46/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 21:07:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:26,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:07:26,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 21:07:26,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:07:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 21:07:26,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76065486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:07:26,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:07:26,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-18 21:07:26,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456631700] [2022-11-18 21:07:26,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:07:26,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 21:07:26,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 21:07:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-18 21:07:26,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-18 21:07:26,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 621 transitions, 1930 flow. Second operand has 15 states, 15 states have (on average 326.73333333333335) internal successors, (4901), 15 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:26,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:07:26,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-18 21:07:26,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand