./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8 --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 b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- 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-e04fb08 [2022-11-16 11:26:05,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:26:05,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:26:05,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:26:05,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:26:05,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:26:05,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:26:05,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:26:05,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:26:05,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:26:05,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:26:05,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:26:05,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:26:05,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:26:05,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:26:05,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:26:05,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:26:05,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:26:05,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:26:05,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:26:05,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:26:05,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:26:05,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:26:05,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:26:05,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:26:05,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:26:05,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:26:05,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:26:05,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:26:05,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:26:05,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:26:05,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:26:05,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:26:05,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:26:05,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:26:05,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:26:05,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:26:05,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:26:05,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:26:05,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:26:05,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:26:05,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:26:05,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:26:05,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:26:05,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:26:05,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:26:05,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:26:05,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:26:05,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:26:05,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:26:05,199 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:26:05,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:26:05,200 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:26:05,200 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:26:05,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:26:05,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:26:05,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:26:05,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:26:05,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:26:05,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:26:05,202 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:26:05,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:26:05,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:26:05,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:26:05,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:26:05,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:26:05,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:26:05,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:26:05,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:05,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:26:05,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:26:05,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:26:05,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:26:05,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:26:05,208 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:26:05,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:26:05,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:26:05,209 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_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-16 11:26:05,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:26:05,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:26:05,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:26:05,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:26:05,536 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:26:05,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-16 11:26:05,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/data/b72909cd8/c673504f4719418ca02a86b47cc7da0d/FLAG923b59ecb [2022-11-16 11:26:06,085 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:26:06,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-16 11:26:06,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/data/b72909cd8/c673504f4719418ca02a86b47cc7da0d/FLAG923b59ecb [2022-11-16 11:26:06,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/data/b72909cd8/c673504f4719418ca02a86b47cc7da0d [2022-11-16 11:26:06,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:26:06,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:26:06,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:06,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:26:06,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:26:06,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faf804b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06, skipping insertion in model container [2022-11-16 11:26:06,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:26:06,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:26:06,759 WARN L229 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_ba0d7695-f2d2-4b60-bb92-14138bb8755e/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-16 11:26:06,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:06,784 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:26:06,819 WARN L229 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_ba0d7695-f2d2-4b60-bb92-14138bb8755e/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-16 11:26:06,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:06,844 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:26:06,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06 WrapperNode [2022-11-16 11:26:06,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:06,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:06,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:26:06,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:26:06,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,919 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 479 [2022-11-16 11:26:06,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:06,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:26:06,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:26:06,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:26:06,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:06,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:07,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:07,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:07,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:07,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:26:07,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:26:07,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:26:07,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:26:07,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (1/1) ... [2022-11-16 11:26:07,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:07,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:07,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:26:07,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:26:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:26:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:26:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:26:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:26:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:26:07,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:26:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:26:07,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:26:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:26:07,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:26:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:26:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:26:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:26:07,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:26:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:26:07,120 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:26:07,275 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:26:07,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:26:08,267 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:26:08,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:26:08,285 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:26:08,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:08 BoogieIcfgContainer [2022-11-16 11:26:08,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:26:08,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:26:08,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:26:08,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:26:08,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:26:06" (1/3) ... [2022-11-16 11:26:08,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4874c2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:26:08, skipping insertion in model container [2022-11-16 11:26:08,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:06" (2/3) ... [2022-11-16 11:26:08,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4874c2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:26:08, skipping insertion in model container [2022-11-16 11:26:08,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:08" (3/3) ... [2022-11-16 11:26:08,306 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-16 11:26:08,318 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:26:08,327 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:26:08,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-16 11:26:08,328 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:26:08,479 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:26:08,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 620 places, 657 transitions, 1338 flow [2022-11-16 11:26:08,830 INFO L130 PetriNetUnfolder]: 47/654 cut-off events. [2022-11-16 11:26:08,831 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:26:08,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 654 events. 47/654 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1082 event pairs, 0 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 551. Up to 2 conditions per place. [2022-11-16 11:26:08,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 620 places, 657 transitions, 1338 flow [2022-11-16 11:26:08,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 633 transitions, 1281 flow [2022-11-16 11:26:08,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:26:08,894 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;@2a971e8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:26:08,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-16 11:26:08,909 INFO L130 PetriNetUnfolder]: 4/101 cut-off events. [2022-11-16 11:26:08,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:26:08,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:08,911 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] [2022-11-16 11:26:08,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1133195272, now seen corresponding path program 1 times [2022-11-16 11:26:08,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:08,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161428005] [2022-11-16 11:26:08,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:09,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:09,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161428005] [2022-11-16 11:26:09,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161428005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:09,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:09,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:26:09,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589060207] [2022-11-16 11:26:09,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:09,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:26:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:09,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:26:09,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:26:09,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 657 [2022-11-16 11:26:09,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 633 transitions, 1281 flow. Second operand has 5 states, 5 states have (on average 521.8) internal successors, (2609), 5 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:09,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:09,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 657 [2022-11-16 11:26:09,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:10,314 INFO L130 PetriNetUnfolder]: 67/1142 cut-off events. [2022-11-16 11:26:10,315 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-16 11:26:10,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1316 conditions, 1142 events. 67/1142 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4705 event pairs, 21 based on Foata normal form. 49/1019 useless extension candidates. Maximal degree in co-relation 707. Up to 123 conditions per place. [2022-11-16 11:26:10,333 INFO L137 encePairwiseOnDemand]: 619/657 looper letters, 80 selfloop transitions, 5 changer transitions 16/603 dead transitions. [2022-11-16 11:26:10,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 603 transitions, 1423 flow [2022-11-16 11:26:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:26:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3239 transitions. [2022-11-16 11:26:10,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.821664129883308 [2022-11-16 11:26:10,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3239 transitions. [2022-11-16 11:26:10,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3239 transitions. [2022-11-16 11:26:10,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:10,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3239 transitions. [2022-11-16 11:26:10,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 539.8333333333334) internal successors, (3239), 6 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,404 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,405 INFO L175 Difference]: Start difference. First operand has 597 places, 633 transitions, 1281 flow. Second operand 6 states and 3239 transitions. [2022-11-16 11:26:10,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 603 transitions, 1423 flow [2022-11-16 11:26:10,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 603 transitions, 1414 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:10,424 INFO L231 Difference]: Finished difference. Result has 595 places, 587 transitions, 1190 flow [2022-11-16 11:26:10,427 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1190, PETRI_PLACES=595, PETRI_TRANSITIONS=587} [2022-11-16 11:26:10,431 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -2 predicate places. [2022-11-16 11:26:10,431 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 587 transitions, 1190 flow [2022-11-16 11:26:10,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 521.8) internal successors, (2609), 5 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:10,433 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] [2022-11-16 11:26:10,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:26:10,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:10,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:10,435 INFO L85 PathProgramCache]: Analyzing trace with hash -769314044, now seen corresponding path program 1 times [2022-11-16 11:26:10,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:10,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557925037] [2022-11-16 11:26:10,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:10,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:10,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:10,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557925037] [2022-11-16 11:26:10,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557925037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:10,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:10,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:26:10,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507214872] [2022-11-16 11:26:10,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:10,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:10,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:10,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:10,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:10,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 598 out of 657 [2022-11-16 11:26:10,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 587 transitions, 1190 flow. Second operand has 4 states, 4 states have (on average 600.25) internal successors, (2401), 4 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:10,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 598 of 657 [2022-11-16 11:26:10,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:10,976 INFO L130 PetriNetUnfolder]: 67/1124 cut-off events. [2022-11-16 11:26:10,976 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 11:26:10,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 1124 events. 67/1124 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4679 event pairs, 21 based on Foata normal form. 0/970 useless extension candidates. Maximal degree in co-relation 1104. Up to 64 conditions per place. [2022-11-16 11:26:10,995 INFO L137 encePairwiseOnDemand]: 652/657 looper letters, 21 selfloop transitions, 3 changer transitions 0/585 dead transitions. [2022-11-16 11:26:10,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 585 transitions, 1234 flow [2022-11-16 11:26:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:10,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:26:10,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2418 transitions. [2022-11-16 11:26:11,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200913242009132 [2022-11-16 11:26:11,000 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2418 transitions. [2022-11-16 11:26:11,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2418 transitions. [2022-11-16 11:26:11,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:11,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2418 transitions. [2022-11-16 11:26:11,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 604.5) internal successors, (2418), 4 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 657.0) internal successors, (3285), 5 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,016 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 657.0) internal successors, (3285), 5 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,016 INFO L175 Difference]: Start difference. First operand has 595 places, 587 transitions, 1190 flow. Second operand 4 states and 2418 transitions. [2022-11-16 11:26:11,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 585 transitions, 1234 flow [2022-11-16 11:26:11,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 585 transitions, 1224 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:26:11,028 INFO L231 Difference]: Finished difference. Result has 575 places, 585 transitions, 1182 flow [2022-11-16 11:26:11,029 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1182, PETRI_PLACES=575, PETRI_TRANSITIONS=585} [2022-11-16 11:26:11,030 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -22 predicate places. [2022-11-16 11:26:11,030 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 585 transitions, 1182 flow [2022-11-16 11:26:11,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 600.25) internal successors, (2401), 4 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:11,032 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] [2022-11-16 11:26:11,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:26:11,033 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:11,033 INFO L85 PathProgramCache]: Analyzing trace with hash 793945238, now seen corresponding path program 1 times [2022-11-16 11:26:11,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:11,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325547886] [2022-11-16 11:26:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:11,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:11,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:11,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325547886] [2022-11-16 11:26:11,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325547886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:11,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:11,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:26:11,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546311001] [2022-11-16 11:26:11,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:11,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:11,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:11,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 657 [2022-11-16 11:26:11,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 585 transitions, 1182 flow. Second operand has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:11,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 657 [2022-11-16 11:26:11,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:11,560 INFO L130 PetriNetUnfolder]: 35/1014 cut-off events. [2022-11-16 11:26:11,560 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2022-11-16 11:26:11,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1100 conditions, 1014 events. 35/1014 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3379 event pairs, 0 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1058. Up to 44 conditions per place. [2022-11-16 11:26:11,573 INFO L137 encePairwiseOnDemand]: 637/657 looper letters, 58 selfloop transitions, 14 changer transitions 0/616 dead transitions. [2022-11-16 11:26:11,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 616 transitions, 1394 flow [2022-11-16 11:26:11,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:11,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:26:11,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3003 transitions. [2022-11-16 11:26:11,582 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9141552511415525 [2022-11-16 11:26:11,582 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3003 transitions. [2022-11-16 11:26:11,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3003 transitions. [2022-11-16 11:26:11,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:11,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3003 transitions. [2022-11-16 11:26:11,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 600.6) internal successors, (3003), 5 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,605 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,606 INFO L175 Difference]: Start difference. First operand has 575 places, 585 transitions, 1182 flow. Second operand 5 states and 3003 transitions. [2022-11-16 11:26:11,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 616 transitions, 1394 flow [2022-11-16 11:26:11,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 616 transitions, 1388 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:26:11,625 INFO L231 Difference]: Finished difference. Result has 579 places, 596 transitions, 1280 flow [2022-11-16 11:26:11,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1280, PETRI_PLACES=579, PETRI_TRANSITIONS=596} [2022-11-16 11:26:11,629 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -18 predicate places. [2022-11-16 11:26:11,629 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 596 transitions, 1280 flow [2022-11-16 11:26:11,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:11,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:11,631 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] [2022-11-16 11:26:11,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:26:11,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:11,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:11,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1600508096, now seen corresponding path program 1 times [2022-11-16 11:26:11,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:11,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480517387] [2022-11-16 11:26:11,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480517387] [2022-11-16 11:26:12,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480517387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:12,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:12,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:26:12,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126592636] [2022-11-16 11:26:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:12,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:26:12,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:26:12,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:12,077 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 657 [2022-11-16 11:26:12,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 596 transitions, 1280 flow. Second operand has 8 states, 8 states have (on average 493.25) internal successors, (3946), 8 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:12,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:12,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 657 [2022-11-16 11:26:12,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:12,905 INFO L130 PetriNetUnfolder]: 132/2078 cut-off events. [2022-11-16 11:26:12,905 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-11-16 11:26:12,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2400 conditions, 2078 events. 132/2078 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 12400 event pairs, 42 based on Foata normal form. 0/1785 useless extension candidates. Maximal degree in co-relation 1144. Up to 223 conditions per place. [2022-11-16 11:26:12,949 INFO L137 encePairwiseOnDemand]: 645/657 looper letters, 110 selfloop transitions, 11 changer transitions 0/597 dead transitions. [2022-11-16 11:26:12,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 597 transitions, 1521 flow [2022-11-16 11:26:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:26:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:26:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4518 transitions. [2022-11-16 11:26:12,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7640791476407914 [2022-11-16 11:26:12,960 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4518 transitions. [2022-11-16 11:26:12,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4518 transitions. [2022-11-16 11:26:12,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:12,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4518 transitions. [2022-11-16 11:26:12,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 502.0) internal successors, (4518), 9 states have internal predecessors, (4518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:12,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 657.0) internal successors, (6570), 10 states have internal predecessors, (6570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:13,002 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 657.0) internal successors, (6570), 10 states have internal predecessors, (6570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:13,010 INFO L175 Difference]: Start difference. First operand has 579 places, 596 transitions, 1280 flow. Second operand 9 states and 4518 transitions. [2022-11-16 11:26:13,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 597 transitions, 1521 flow [2022-11-16 11:26:13,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 597 transitions, 1512 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-16 11:26:13,084 INFO L231 Difference]: Finished difference. Result has 587 places, 595 transitions, 1292 flow [2022-11-16 11:26:13,085 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1292, PETRI_PLACES=587, PETRI_TRANSITIONS=595} [2022-11-16 11:26:13,086 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -10 predicate places. [2022-11-16 11:26:13,086 INFO L495 AbstractCegarLoop]: Abstraction has has 587 places, 595 transitions, 1292 flow [2022-11-16 11:26:13,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 493.25) internal successors, (3946), 8 states have internal predecessors, (3946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:13,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:13,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:13,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:26:13,089 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:13,090 INFO L85 PathProgramCache]: Analyzing trace with hash -861806634, now seen corresponding path program 1 times [2022-11-16 11:26:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:13,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422074611] [2022-11-16 11:26:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:13,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:13,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422074611] [2022-11-16 11:26:13,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422074611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:13,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860814032] [2022-11-16 11:26:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:13,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:13,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:13,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:26:13,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:26:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:13,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:26:13,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:13,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:13,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860814032] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:13,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:26:13,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 11:26:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371471826] [2022-11-16 11:26:13,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:13,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:13,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:13,637 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 657 [2022-11-16 11:26:13,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 595 transitions, 1292 flow. Second operand has 12 states, 12 states have (on average 587.6666666666666) internal successors, (7052), 12 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:13,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:13,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 657 [2022-11-16 11:26:13,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:14,799 INFO L130 PetriNetUnfolder]: 85/2293 cut-off events. [2022-11-16 11:26:14,799 INFO L131 PetriNetUnfolder]: For 53/63 co-relation queries the response was YES. [2022-11-16 11:26:14,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2582 conditions, 2293 events. 85/2293 cut-off events. For 53/63 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12884 event pairs, 0 based on Foata normal form. 9/2029 useless extension candidates. Maximal degree in co-relation 2277. Up to 34 conditions per place. [2022-11-16 11:26:14,844 INFO L137 encePairwiseOnDemand]: 634/657 looper letters, 108 selfloop transitions, 61 changer transitions 0/713 dead transitions. [2022-11-16 11:26:14,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 604 places, 713 transitions, 1974 flow [2022-11-16 11:26:14,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:26:14,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:26:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 10708 transitions. [2022-11-16 11:26:14,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9054625401657365 [2022-11-16 11:26:14,874 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 10708 transitions. [2022-11-16 11:26:14,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 10708 transitions. [2022-11-16 11:26:14,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:14,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 10708 transitions. [2022-11-16 11:26:14,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 594.8888888888889) internal successors, (10708), 18 states have internal predecessors, (10708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 657.0) internal successors, (12483), 19 states have internal predecessors, (12483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,931 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 657.0) internal successors, (12483), 19 states have internal predecessors, (12483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,932 INFO L175 Difference]: Start difference. First operand has 587 places, 595 transitions, 1292 flow. Second operand 18 states and 10708 transitions. [2022-11-16 11:26:14,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 604 places, 713 transitions, 1974 flow [2022-11-16 11:26:14,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 713 transitions, 1948 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:26:14,953 INFO L231 Difference]: Finished difference. Result has 601 places, 637 transitions, 1633 flow [2022-11-16 11:26:14,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1633, PETRI_PLACES=601, PETRI_TRANSITIONS=637} [2022-11-16 11:26:14,958 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 4 predicate places. [2022-11-16 11:26:14,959 INFO L495 AbstractCegarLoop]: Abstraction has has 601 places, 637 transitions, 1633 flow [2022-11-16 11:26:14,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 587.6666666666666) internal successors, (7052), 12 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:14,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:14,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:15,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:15,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:15,174 INFO L85 PathProgramCache]: Analyzing trace with hash -946200399, now seen corresponding path program 1 times [2022-11-16 11:26:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:15,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307194569] [2022-11-16 11:26:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:15,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:15,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:15,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307194569] [2022-11-16 11:26:15,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307194569] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:15,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269686427] [2022-11-16 11:26:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:15,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:15,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:15,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:26:15,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:26:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:15,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:26:15,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:15,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:26:15,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269686427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:15,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:26:15,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:26:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127739829] [2022-11-16 11:26:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:15,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:15,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:15,561 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 657 [2022-11-16 11:26:15,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 637 transitions, 1633 flow. Second operand has 6 states, 6 states have (on average 587.3333333333334) internal successors, (3524), 6 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:15,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:15,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 657 [2022-11-16 11:26:15,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:16,397 INFO L130 PetriNetUnfolder]: 85/2281 cut-off events. [2022-11-16 11:26:16,398 INFO L131 PetriNetUnfolder]: For 194/204 co-relation queries the response was YES. [2022-11-16 11:26:16,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2626 conditions, 2281 events. 85/2281 cut-off events. For 194/204 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12817 event pairs, 0 based on Foata normal form. 12/2020 useless extension candidates. Maximal degree in co-relation 2313. Up to 68 conditions per place. [2022-11-16 11:26:16,433 INFO L137 encePairwiseOnDemand]: 640/657 looper letters, 58 selfloop transitions, 42 changer transitions 0/644 dead transitions. [2022-11-16 11:26:16,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 644 transitions, 1802 flow [2022-11-16 11:26:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:26:16,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:26:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4165 transitions. [2022-11-16 11:26:16,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9056316590563166 [2022-11-16 11:26:16,443 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4165 transitions. [2022-11-16 11:26:16,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4165 transitions. [2022-11-16 11:26:16,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:16,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4165 transitions. [2022-11-16 11:26:16,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 595.0) internal successors, (4165), 7 states have internal predecessors, (4165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:16,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 657.0) internal successors, (5256), 8 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:16,466 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 657.0) internal successors, (5256), 8 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:16,466 INFO L175 Difference]: Start difference. First operand has 601 places, 637 transitions, 1633 flow. Second operand 7 states and 4165 transitions. [2022-11-16 11:26:16,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 644 transitions, 1802 flow [2022-11-16 11:26:16,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 644 transitions, 1696 flow, removed 37 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:16,482 INFO L231 Difference]: Finished difference. Result has 595 places, 625 transitions, 1530 flow [2022-11-16 11:26:16,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1530, PETRI_PLACES=595, PETRI_TRANSITIONS=625} [2022-11-16 11:26:16,484 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -2 predicate places. [2022-11-16 11:26:16,484 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 625 transitions, 1530 flow [2022-11-16 11:26:16,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 587.3333333333334) internal successors, (3524), 6 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:16,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:16,486 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] [2022-11-16 11:26:16,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:16,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 11:26:16,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:16,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:16,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1389208576, now seen corresponding path program 1 times [2022-11-16 11:26:16,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:16,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324110076] [2022-11-16 11:26:16,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:16,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:16,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324110076] [2022-11-16 11:26:16,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324110076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:16,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:16,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:26:16,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827187742] [2022-11-16 11:26:16,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:16,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:26:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:26:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:26:16,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 657 [2022-11-16 11:26:16,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 625 transitions, 1530 flow. Second operand has 5 states, 5 states have (on average 523.4) internal successors, (2617), 5 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:16,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:16,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 657 [2022-11-16 11:26:16,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:19,068 INFO L130 PetriNetUnfolder]: 480/6137 cut-off events. [2022-11-16 11:26:19,069 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-16 11:26:19,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7076 conditions, 6137 events. 480/6137 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 57411 event pairs, 195 based on Foata normal form. 0/5218 useless extension candidates. Maximal degree in co-relation 6775. Up to 586 conditions per place. [2022-11-16 11:26:19,177 INFO L137 encePairwiseOnDemand]: 650/657 looper letters, 80 selfloop transitions, 5 changer transitions 0/623 dead transitions. [2022-11-16 11:26:19,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 623 transitions, 1696 flow [2022-11-16 11:26:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:26:19,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2677 transitions. [2022-11-16 11:26:19,184 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8149162861491629 [2022-11-16 11:26:19,184 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2677 transitions. [2022-11-16 11:26:19,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2677 transitions. [2022-11-16 11:26:19,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:19,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2677 transitions. [2022-11-16 11:26:19,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 535.4) internal successors, (2677), 5 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:19,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:19,200 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:19,200 INFO L175 Difference]: Start difference. First operand has 595 places, 625 transitions, 1530 flow. Second operand 5 states and 2677 transitions. [2022-11-16 11:26:19,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 623 transitions, 1696 flow [2022-11-16 11:26:19,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 623 transitions, 1644 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:19,214 INFO L231 Difference]: Finished difference. Result has 592 places, 623 transitions, 1484 flow [2022-11-16 11:26:19,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1474, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1484, PETRI_PLACES=592, PETRI_TRANSITIONS=623} [2022-11-16 11:26:19,216 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -5 predicate places. [2022-11-16 11:26:19,217 INFO L495 AbstractCegarLoop]: Abstraction has has 592 places, 623 transitions, 1484 flow [2022-11-16 11:26:19,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 523.4) internal successors, (2617), 5 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:19,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:19,218 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] [2022-11-16 11:26:19,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:26:19,219 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:19,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash -115791918, now seen corresponding path program 1 times [2022-11-16 11:26:19,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:19,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073548792] [2022-11-16 11:26:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:19,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:19,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:19,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073548792] [2022-11-16 11:26:19,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073548792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:19,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:19,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:26:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411795066] [2022-11-16 11:26:19,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:19,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:19,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:19,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:19,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:19,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 598 out of 657 [2022-11-16 11:26:19,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 623 transitions, 1484 flow. Second operand has 4 states, 4 states have (on average 600.25) internal successors, (2401), 4 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:19,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:19,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 598 of 657 [2022-11-16 11:26:19,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:21,309 INFO L130 PetriNetUnfolder]: 480/6128 cut-off events. [2022-11-16 11:26:21,309 INFO L131 PetriNetUnfolder]: For 101/101 co-relation queries the response was YES. [2022-11-16 11:26:21,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6878 conditions, 6128 events. 480/6128 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 57436 event pairs, 195 based on Foata normal form. 0/5218 useless extension candidates. Maximal degree in co-relation 6765. Up to 432 conditions per place. [2022-11-16 11:26:21,400 INFO L137 encePairwiseOnDemand]: 652/657 looper letters, 21 selfloop transitions, 3 changer transitions 0/621 dead transitions. [2022-11-16 11:26:21,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 621 transitions, 1528 flow [2022-11-16 11:26:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:26:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2418 transitions. [2022-11-16 11:26:21,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200913242009132 [2022-11-16 11:26:21,406 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2418 transitions. [2022-11-16 11:26:21,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2418 transitions. [2022-11-16 11:26:21,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:21,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2418 transitions. [2022-11-16 11:26:21,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 604.5) internal successors, (2418), 4 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:21,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 657.0) internal successors, (3285), 5 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:21,422 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 657.0) internal successors, (3285), 5 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:21,422 INFO L175 Difference]: Start difference. First operand has 592 places, 623 transitions, 1484 flow. Second operand 4 states and 2418 transitions. [2022-11-16 11:26:21,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 621 transitions, 1528 flow [2022-11-16 11:26:21,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 621 transitions, 1518 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:26:21,437 INFO L231 Difference]: Finished difference. Result has 589 places, 621 transitions, 1476 flow [2022-11-16 11:26:21,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1470, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1476, PETRI_PLACES=589, PETRI_TRANSITIONS=621} [2022-11-16 11:26:21,441 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, -8 predicate places. [2022-11-16 11:26:21,441 INFO L495 AbstractCegarLoop]: Abstraction has has 589 places, 621 transitions, 1476 flow [2022-11-16 11:26:21,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 600.25) internal successors, (2401), 4 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:21,442 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:21,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:21,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:26:21,443 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash -661261162, now seen corresponding path program 2 times [2022-11-16 11:26:21,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:21,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249009297] [2022-11-16 11:26:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:21,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:21,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249009297] [2022-11-16 11:26:21,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249009297] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:21,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287702266] [2022-11-16 11:26:21,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:26:21,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:21,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:21,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:26:21,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:26:21,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:26:21,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:26:21,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:26:21,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 11:26:22,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:22,284 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 11:26:22,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287702266] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:22,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:26:22,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 16 [2022-11-16 11:26:22,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412339080] [2022-11-16 11:26:22,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:22,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:26:22,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:22,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:26:22,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:26:22,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 657 [2022-11-16 11:26:22,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 621 transitions, 1476 flow. Second operand has 17 states, 17 states have (on average 554.8235294117648) internal successors, (9432), 17 states have internal predecessors, (9432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:22,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:22,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 657 [2022-11-16 11:26:22,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:26,017 INFO L130 PetriNetUnfolder]: 462/6878 cut-off events. [2022-11-16 11:26:26,018 INFO L131 PetriNetUnfolder]: For 254/254 co-relation queries the response was YES. [2022-11-16 11:26:26,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7734 conditions, 6878 events. 462/6878 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 62173 event pairs, 147 based on Foata normal form. 6/5883 useless extension candidates. Maximal degree in co-relation 7674. Up to 93 conditions per place. [2022-11-16 11:26:26,138 INFO L137 encePairwiseOnDemand]: 629/657 looper letters, 213 selfloop transitions, 95 changer transitions 0/818 dead transitions. [2022-11-16 11:26:26,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 818 transitions, 2618 flow [2022-11-16 11:26:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 11:26:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-11-16 11:26:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 26762 transitions. [2022-11-16 11:26:26,196 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8486174530695079 [2022-11-16 11:26:26,196 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 26762 transitions. [2022-11-16 11:26:26,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 26762 transitions. [2022-11-16 11:26:26,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:26,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 26762 transitions. [2022-11-16 11:26:26,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 557.5416666666666) internal successors, (26762), 48 states have internal predecessors, (26762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 657.0) internal successors, (32193), 49 states have internal predecessors, (32193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,499 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 657.0) internal successors, (32193), 49 states have internal predecessors, (32193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,500 INFO L175 Difference]: Start difference. First operand has 589 places, 621 transitions, 1476 flow. Second operand 48 states and 26762 transitions. [2022-11-16 11:26:26,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 818 transitions, 2618 flow [2022-11-16 11:26:26,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 818 transitions, 2612 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:26:26,516 INFO L231 Difference]: Finished difference. Result has 636 places, 660 transitions, 1860 flow [2022-11-16 11:26:26,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1460, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=1860, PETRI_PLACES=636, PETRI_TRANSITIONS=660} [2022-11-16 11:26:26,519 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 39 predicate places. [2022-11-16 11:26:26,519 INFO L495 AbstractCegarLoop]: Abstraction has has 636 places, 660 transitions, 1860 flow [2022-11-16 11:26:26,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 554.8235294117648) internal successors, (9432), 17 states have internal predecessors, (9432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:26,522 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] [2022-11-16 11:26:26,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:26,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:26,729 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1424121864, now seen corresponding path program 1 times [2022-11-16 11:26:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:26,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614517107] [2022-11-16 11:26:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:27,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:27,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614517107] [2022-11-16 11:26:27,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614517107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:27,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:27,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:26:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916487969] [2022-11-16 11:26:27,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:27,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:26:27,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:27,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:26:27,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:26:27,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 657 [2022-11-16 11:26:27,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 636 places, 660 transitions, 1860 flow. Second operand has 8 states, 8 states have (on average 495.5) internal successors, (3964), 8 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:27,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:27,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 657 [2022-11-16 11:26:27,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:29,623 INFO L130 PetriNetUnfolder]: 671/8502 cut-off events. [2022-11-16 11:26:29,624 INFO L131 PetriNetUnfolder]: For 482/482 co-relation queries the response was YES. [2022-11-16 11:26:29,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9989 conditions, 8502 events. 671/8502 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 84588 event pairs, 273 based on Foata normal form. 1/7245 useless extension candidates. Maximal degree in co-relation 9589. Up to 871 conditions per place. [2022-11-16 11:26:29,791 INFO L137 encePairwiseOnDemand]: 645/657 looper letters, 154 selfloop transitions, 21 changer transitions 0/660 dead transitions. [2022-11-16 11:26:29,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 660 transitions, 2202 flow [2022-11-16 11:26:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:26:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:26:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4518 transitions. [2022-11-16 11:26:29,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7640791476407914 [2022-11-16 11:26:29,883 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4518 transitions. [2022-11-16 11:26:29,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4518 transitions. [2022-11-16 11:26:29,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:29,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4518 transitions. [2022-11-16 11:26:29,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 502.0) internal successors, (4518), 9 states have internal predecessors, (4518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:29,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 657.0) internal successors, (6570), 10 states have internal predecessors, (6570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:29,902 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 657.0) internal successors, (6570), 10 states have internal predecessors, (6570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:29,902 INFO L175 Difference]: Start difference. First operand has 636 places, 660 transitions, 1860 flow. Second operand 9 states and 4518 transitions. [2022-11-16 11:26:29,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 660 transitions, 2202 flow [2022-11-16 11:26:29,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 660 transitions, 2079 flow, removed 16 selfloop flow, removed 15 redundant places. [2022-11-16 11:26:29,919 INFO L231 Difference]: Finished difference. Result has 629 places, 658 transitions, 1767 flow [2022-11-16 11:26:29,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1725, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1767, PETRI_PLACES=629, PETRI_TRANSITIONS=658} [2022-11-16 11:26:29,922 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 32 predicate places. [2022-11-16 11:26:29,922 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 658 transitions, 1767 flow [2022-11-16 11:26:29,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 495.5) internal successors, (3964), 8 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:29,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:29,924 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] [2022-11-16 11:26:29,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:26:29,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:29,925 INFO L85 PathProgramCache]: Analyzing trace with hash -171416725, now seen corresponding path program 1 times [2022-11-16 11:26:29,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:29,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025673867] [2022-11-16 11:26:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:26:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:30,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025673867] [2022-11-16 11:26:30,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025673867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:30,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:30,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:26:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214783011] [2022-11-16 11:26:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:30,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:26:30,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:30,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:26:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:26:30,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 657 [2022-11-16 11:26:30,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 658 transitions, 1767 flow. Second operand has 5 states, 5 states have (on average 525.0) internal successors, (2625), 5 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:30,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:30,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 657 [2022-11-16 11:26:30,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:32,699 INFO L130 PetriNetUnfolder]: 671/8321 cut-off events. [2022-11-16 11:26:32,699 INFO L131 PetriNetUnfolder]: For 322/357 co-relation queries the response was YES. [2022-11-16 11:26:32,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9471 conditions, 8321 events. 671/8321 cut-off events. For 322/357 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 82575 event pairs, 273 based on Foata normal form. 0/7076 useless extension candidates. Maximal degree in co-relation 9134. Up to 814 conditions per place. [2022-11-16 11:26:32,784 INFO L137 encePairwiseOnDemand]: 650/657 looper letters, 80 selfloop transitions, 5 changer transitions 0/656 dead transitions. [2022-11-16 11:26:32,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 656 transitions, 1933 flow [2022-11-16 11:26:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:32,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:26:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2677 transitions. [2022-11-16 11:26:32,788 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8149162861491629 [2022-11-16 11:26:32,788 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2677 transitions. [2022-11-16 11:26:32,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2677 transitions. [2022-11-16 11:26:32,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:32,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2677 transitions. [2022-11-16 11:26:32,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 535.4) internal successors, (2677), 5 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:32,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:32,801 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:32,802 INFO L175 Difference]: Start difference. First operand has 629 places, 658 transitions, 1767 flow. Second operand 5 states and 2677 transitions. [2022-11-16 11:26:32,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 656 transitions, 1933 flow [2022-11-16 11:26:32,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 624 places, 656 transitions, 1893 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:26:32,817 INFO L231 Difference]: Finished difference. Result has 624 places, 656 transitions, 1733 flow [2022-11-16 11:26:32,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1723, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1733, PETRI_PLACES=624, PETRI_TRANSITIONS=656} [2022-11-16 11:26:32,819 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 27 predicate places. [2022-11-16 11:26:32,819 INFO L495 AbstractCegarLoop]: Abstraction has has 624 places, 656 transitions, 1733 flow [2022-11-16 11:26:32,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 525.0) internal successors, (2625), 5 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:32,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:32,820 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] [2022-11-16 11:26:32,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:26:32,821 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1018950175, now seen corresponding path program 1 times [2022-11-16 11:26:32,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:32,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648284637] [2022-11-16 11:26:32,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:32,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:26:32,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:32,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648284637] [2022-11-16 11:26:32,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648284637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:32,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:32,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:26:32,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684916626] [2022-11-16 11:26:32,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:32,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:32,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:32,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:32,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 598 out of 657 [2022-11-16 11:26:32,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 656 transitions, 1733 flow. Second operand has 4 states, 4 states have (on average 600.25) internal successors, (2401), 4 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:32,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:32,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 598 of 657 [2022-11-16 11:26:32,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:35,406 INFO L130 PetriNetUnfolder]: 671/8308 cut-off events. [2022-11-16 11:26:35,406 INFO L131 PetriNetUnfolder]: For 289/324 co-relation queries the response was YES. [2022-11-16 11:26:35,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9222 conditions, 8308 events. 671/8308 cut-off events. For 289/324 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 82423 event pairs, 273 based on Foata normal form. 0/7076 useless extension candidates. Maximal degree in co-relation 9103. Up to 604 conditions per place. [2022-11-16 11:26:35,495 INFO L137 encePairwiseOnDemand]: 652/657 looper letters, 21 selfloop transitions, 3 changer transitions 0/654 dead transitions. [2022-11-16 11:26:35,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 654 transitions, 1777 flow [2022-11-16 11:26:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:26:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:26:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2418 transitions. [2022-11-16 11:26:35,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200913242009132 [2022-11-16 11:26:35,500 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2418 transitions. [2022-11-16 11:26:35,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2418 transitions. [2022-11-16 11:26:35,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:35,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2418 transitions. [2022-11-16 11:26:35,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 604.5) internal successors, (2418), 4 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 657.0) internal successors, (3285), 5 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,528 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 657.0) internal successors, (3285), 5 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,528 INFO L175 Difference]: Start difference. First operand has 624 places, 656 transitions, 1733 flow. Second operand 4 states and 2418 transitions. [2022-11-16 11:26:35,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 654 transitions, 1777 flow [2022-11-16 11:26:35,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 654 transitions, 1767 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:26:35,546 INFO L231 Difference]: Finished difference. Result has 621 places, 654 transitions, 1725 flow [2022-11-16 11:26:35,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1719, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1725, PETRI_PLACES=621, PETRI_TRANSITIONS=654} [2022-11-16 11:26:35,548 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 24 predicate places. [2022-11-16 11:26:35,549 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 654 transitions, 1725 flow [2022-11-16 11:26:35,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 600.25) internal successors, (2401), 4 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:35,550 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:35,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:26:35,551 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:35,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:35,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1389492238, now seen corresponding path program 1 times [2022-11-16 11:26:35,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:35,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189457028] [2022-11-16 11:26:35,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:35,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:36,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189457028] [2022-11-16 11:26:36,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189457028] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:36,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749627180] [2022-11-16 11:26:36,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:36,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:36,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:36,142 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:26:36,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:26:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:36,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 11:26:36,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:36,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:36,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749627180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:36,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:26:36,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-11-16 11:26:36,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248479191] [2022-11-16 11:26:36,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:36,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-16 11:26:36,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-16 11:26:36,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-11-16 11:26:36,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 657 [2022-11-16 11:26:36,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 654 transitions, 1725 flow. Second operand has 32 states, 32 states have (on average 588.5) internal successors, (18832), 32 states have internal predecessors, (18832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:36,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:36,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 657 [2022-11-16 11:26:36,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:40,245 INFO L130 PetriNetUnfolder]: 254/6440 cut-off events. [2022-11-16 11:26:40,246 INFO L131 PetriNetUnfolder]: For 730/760 co-relation queries the response was YES. [2022-11-16 11:26:40,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7476 conditions, 6440 events. 254/6440 cut-off events. For 730/760 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 50694 event pairs, 0 based on Foata normal form. 16/5781 useless extension candidates. Maximal degree in co-relation 7404. Up to 84 conditions per place. [2022-11-16 11:26:40,296 INFO L137 encePairwiseOnDemand]: 638/657 looper letters, 306 selfloop transitions, 158 changer transitions 0/1005 dead transitions. [2022-11-16 11:26:40,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 1005 transitions, 4035 flow [2022-11-16 11:26:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 11:26:40,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-16 11:26:40,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 26220 transitions. [2022-11-16 11:26:40,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9070153590701536 [2022-11-16 11:26:40,321 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 26220 transitions. [2022-11-16 11:26:40,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 26220 transitions. [2022-11-16 11:26:40,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:40,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 26220 transitions. [2022-11-16 11:26:40,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 595.9090909090909) internal successors, (26220), 44 states have internal predecessors, (26220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:40,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 657.0) internal successors, (29565), 45 states have internal predecessors, (29565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:40,410 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 657.0) internal successors, (29565), 45 states have internal predecessors, (29565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:40,411 INFO L175 Difference]: Start difference. First operand has 621 places, 654 transitions, 1725 flow. Second operand 44 states and 26220 transitions. [2022-11-16 11:26:40,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 1005 transitions, 4035 flow [2022-11-16 11:26:40,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 1005 transitions, 4029 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:26:40,435 INFO L231 Difference]: Finished difference. Result has 670 places, 747 transitions, 2723 flow [2022-11-16 11:26:40,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1719, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=2723, PETRI_PLACES=670, PETRI_TRANSITIONS=747} [2022-11-16 11:26:40,438 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 73 predicate places. [2022-11-16 11:26:40,439 INFO L495 AbstractCegarLoop]: Abstraction has has 670 places, 747 transitions, 2723 flow [2022-11-16 11:26:40,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 588.5) internal successors, (18832), 32 states have internal predecessors, (18832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:40,442 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:40,443 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] [2022-11-16 11:26:40,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:26:40,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:40,650 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:40,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:40,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1330110677, now seen corresponding path program 1 times [2022-11-16 11:26:40,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:40,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320673765] [2022-11-16 11:26:40,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:40,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:26:40,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:40,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320673765] [2022-11-16 11:26:40,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320673765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:40,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:40,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:26:40,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376514712] [2022-11-16 11:26:40,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:40,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:26:40,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:40,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:26:40,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:26:40,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 657 [2022-11-16 11:26:40,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 747 transitions, 2723 flow. Second operand has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:40,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:40,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 657 [2022-11-16 11:26:40,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:44,379 INFO L130 PetriNetUnfolder]: 464/10955 cut-off events. [2022-11-16 11:26:44,379 INFO L131 PetriNetUnfolder]: For 941/1001 co-relation queries the response was YES. [2022-11-16 11:26:44,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12910 conditions, 10955 events. 464/10955 cut-off events. For 941/1001 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 105640 event pairs, 0 based on Foata normal form. 0/9695 useless extension candidates. Maximal degree in co-relation 12242. Up to 646 conditions per place. [2022-11-16 11:26:44,504 INFO L137 encePairwiseOnDemand]: 637/657 looper letters, 58 selfloop transitions, 14 changer transitions 0/778 dead transitions. [2022-11-16 11:26:44,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 778 transitions, 2935 flow [2022-11-16 11:26:44,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:26:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3003 transitions. [2022-11-16 11:26:44,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9141552511415525 [2022-11-16 11:26:44,507 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3003 transitions. [2022-11-16 11:26:44,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3003 transitions. [2022-11-16 11:26:44,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:44,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3003 transitions. [2022-11-16 11:26:44,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 600.6) internal successors, (3003), 5 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:44,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:44,519 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:44,520 INFO L175 Difference]: Start difference. First operand has 670 places, 747 transitions, 2723 flow. Second operand 5 states and 3003 transitions. [2022-11-16 11:26:44,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 778 transitions, 2935 flow [2022-11-16 11:26:44,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 778 transitions, 2835 flow, removed 1 selfloop flow, removed 15 redundant places. [2022-11-16 11:26:44,553 INFO L231 Difference]: Finished difference. Result has 662 places, 758 transitions, 2727 flow [2022-11-16 11:26:44,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=2623, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=747, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2727, PETRI_PLACES=662, PETRI_TRANSITIONS=758} [2022-11-16 11:26:44,556 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 65 predicate places. [2022-11-16 11:26:44,556 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 758 transitions, 2727 flow [2022-11-16 11:26:44,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:44,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:44,557 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:44,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:26:44,558 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:26:44,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:44,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2077222249, now seen corresponding path program 1 times [2022-11-16 11:26:44,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:44,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446856670] [2022-11-16 11:26:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:44,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:26:44,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:44,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446856670] [2022-11-16 11:26:44,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446856670] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:26:44,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105030602] [2022-11-16 11:26:44,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:44,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:26:44,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:44,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:26:44,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:26:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:45,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:26:45,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:26:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:45,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:26:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:26:46,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105030602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:26:46,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:26:46,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 25 [2022-11-16 11:26:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574605603] [2022-11-16 11:26:46,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:26:46,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:26:46,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:26:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:26:46,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 657 [2022-11-16 11:26:46,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 758 transitions, 2727 flow. Second operand has 25 states, 25 states have (on average 509.76) internal successors, (12744), 25 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:46,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:46,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 657 [2022-11-16 11:26:46,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:15,426 INFO L130 PetriNetUnfolder]: 5713/78657 cut-off events. [2022-11-16 11:27:15,427 INFO L131 PetriNetUnfolder]: For 3457/3457 co-relation queries the response was YES. [2022-11-16 11:27:16,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90964 conditions, 78657 events. 5713/78657 cut-off events. For 3457/3457 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 1202430 event pairs, 1890 based on Foata normal form. 75/66972 useless extension candidates. Maximal degree in co-relation 84729. Up to 1080 conditions per place. [2022-11-16 11:27:17,035 INFO L137 encePairwiseOnDemand]: 614/657 looper letters, 490 selfloop transitions, 152 changer transitions 0/1101 dead transitions. [2022-11-16 11:27:17,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 701 places, 1101 transitions, 5593 flow [2022-11-16 11:27:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-16 11:27:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-11-16 11:27:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 20529 transitions. [2022-11-16 11:27:17,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7811643835616439 [2022-11-16 11:27:17,060 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 20529 transitions. [2022-11-16 11:27:17,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 20529 transitions. [2022-11-16 11:27:17,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:17,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 20529 transitions. [2022-11-16 11:27:17,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 513.225) internal successors, (20529), 40 states have internal predecessors, (20529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:17,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 657.0) internal successors, (26937), 41 states have internal predecessors, (26937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:17,128 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 657.0) internal successors, (26937), 41 states have internal predecessors, (26937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:17,128 INFO L175 Difference]: Start difference. First operand has 662 places, 758 transitions, 2727 flow. Second operand 40 states and 20529 transitions. [2022-11-16 11:27:17,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 701 places, 1101 transitions, 5593 flow [2022-11-16 11:27:17,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 700 places, 1101 transitions, 5577 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:17,169 INFO L231 Difference]: Finished difference. Result has 714 places, 849 transitions, 3755 flow [2022-11-16 11:27:17,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=2719, PETRI_DIFFERENCE_MINUEND_PLACES=661, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=3755, PETRI_PLACES=714, PETRI_TRANSITIONS=849} [2022-11-16 11:27:17,172 INFO L288 CegarLoopForPetriNet]: 597 programPoint places, 117 predicate places. [2022-11-16 11:27:17,172 INFO L495 AbstractCegarLoop]: Abstraction has has 714 places, 849 transitions, 3755 flow [2022-11-16 11:27:17,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 509.76) internal successors, (12744), 25 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:17,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:17,175 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:17,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:27:17,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:17,381 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2022-11-16 11:27:17,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:17,382 INFO L85 PathProgramCache]: Analyzing trace with hash 676391668, now seen corresponding path program 1 times [2022-11-16 11:27:17,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:17,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877333382] [2022-11-16 11:27:17,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:17,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 11:27:17,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:17,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877333382] [2022-11-16 11:27:17,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877333382] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:27:17,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189868333] [2022-11-16 11:27:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:17,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:27:17,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:17,588 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:27:17,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0d7695-f2d2-4b60-bb92-14138bb8755e/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:27:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:17,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:27:17,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:27:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 11:27:17,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:27:17,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189868333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:17,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:27:17,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:27:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730292658] [2022-11-16 11:27:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:17,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:17,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:17,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:17,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:27:17,837 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 657 [2022-11-16 11:27:17,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 714 places, 849 transitions, 3755 flow. Second operand has 6 states, 6 states have (on average 587.3333333333334) internal successors, (3524), 6 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:17,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:17,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 657 [2022-11-16 11:27:17,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand