./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i --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_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/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_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/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_5b07e196-6cda-4a8b-aba6-1983727d792b/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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --- 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 11:27:29,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:27:29,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:27:29,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:27:29,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:27:29,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:27:29,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:27:29,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:27:29,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:27:29,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:27:29,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:27:29,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:27:29,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:27:29,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:27:29,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:27:29,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:27:29,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:27:29,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:27:29,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:27:29,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:27:29,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:27:29,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:27:29,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:27:29,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:27:29,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:27:29,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:27:29,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:27:29,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:27:29,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:27:29,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:27:29,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:27:29,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:27:29,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:27:29,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:27:29,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:27:29,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:27:29,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:27:29,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:27:29,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:27:29,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:27:29,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:27:29,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:27:29,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:27:29,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:27:29,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:27:29,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:27:29,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:27:29,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:27:29,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:27:29,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:27:29,919 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:27:29,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:27:29,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:27:29,920 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:27:29,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:27:29,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:27:29,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:27:29,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:27:29,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:27:29,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:27:29,922 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:27:29,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:27:29,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:27:29,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:27:29,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:27:29,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:27:29,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:27:29,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:27:29,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:29,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:27:29,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:27:29,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:27:29,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:27:29,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:27:29,925 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:27:29,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:27:29,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:27:29,925 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_5b07e196-6cda-4a8b-aba6-1983727d792b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb [2022-11-16 11:27:30,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:27:30,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:27:30,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:27:30,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:27:30,234 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:27:30,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-11-16 11:27:30,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/data/7ac1bc950/4935045c3d444ec3b9041ad0dd04e7a1/FLAGc6b4d8e46 [2022-11-16 11:27:30,900 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:27:30,901 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-11-16 11:27:30,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/data/7ac1bc950/4935045c3d444ec3b9041ad0dd04e7a1/FLAGc6b4d8e46 [2022-11-16 11:27:31,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/data/7ac1bc950/4935045c3d444ec3b9041ad0dd04e7a1 [2022-11-16 11:27:31,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:27:31,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:27:31,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:31,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:27:31,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:27:31,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22129689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31, skipping insertion in model container [2022-11-16 11:27:31,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:27:31,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:27:31,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:31,839 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:27:31,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:31,925 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:27:31,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31 WrapperNode [2022-11-16 11:27:31,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:31,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:31,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:27:31,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:27:31,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,970 INFO L138 Inliner]: procedures = 266, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-11-16 11:27:31,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:31,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:27:31,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:27:31,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:27:31,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,991 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:31,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:27:31,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:27:31,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:27:31,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:27:31,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (1/1) ... [2022-11-16 11:27:32,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:32,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:32,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:27:32,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:27:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:27:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:27:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:27:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:27:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:27:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:27:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:27:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:27:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:27:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:27:32,084 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 11:27:32,240 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:27:32,242 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:27:32,538 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:27:32,545 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:27:32,545 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:27:32,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:32 BoogieIcfgContainer [2022-11-16 11:27:32,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:27:32,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:27:32,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:27:32,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:27:32,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:27:31" (1/3) ... [2022-11-16 11:27:32,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b560d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:32, skipping insertion in model container [2022-11-16 11:27:32,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:31" (2/3) ... [2022-11-16 11:27:32,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b560d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:32, skipping insertion in model container [2022-11-16 11:27:32,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:32" (3/3) ... [2022-11-16 11:27:32,570 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2022-11-16 11:27:32,578 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:27:32,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:27:32,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 11:27:32,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:27:32,688 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:27:32,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 187 flow [2022-11-16 11:27:32,812 INFO L130 PetriNetUnfolder]: 4/90 cut-off events. [2022-11-16 11:27:32,815 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:32,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 4/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-11-16 11:27:32,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 187 flow [2022-11-16 11:27:32,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 90 transitions, 183 flow [2022-11-16 11:27:32,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:27:32,856 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;@2652c089, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:27:32,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 11:27:32,883 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-16 11:27:32,883 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:32,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:32,884 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] [2022-11-16 11:27:32,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:32,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:32,894 INFO L85 PathProgramCache]: Analyzing trace with hash 918610656, now seen corresponding path program 1 times [2022-11-16 11:27:32,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:32,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257898631] [2022-11-16 11:27:32,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:32,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:33,413 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 11:27:33,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:33,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257898631] [2022-11-16 11:27:33,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257898631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:33,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:33,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:33,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374598500] [2022-11-16 11:27:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:33,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:33,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:33,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:33,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:33,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2022-11-16 11:27:33,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states 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 11:27:33,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:33,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2022-11-16 11:27:33,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:33,642 INFO L130 PetriNetUnfolder]: 18/213 cut-off events. [2022-11-16 11:27:33,643 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:27:33,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 213 events. 18/213 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 724 event pairs, 2 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 219. Up to 14 conditions per place. [2022-11-16 11:27:33,647 INFO L137 encePairwiseOnDemand]: 84/91 looper letters, 19 selfloop transitions, 6 changer transitions 4/104 dead transitions. [2022-11-16 11:27:33,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 261 flow [2022-11-16 11:27:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:33,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 429 transitions. [2022-11-16 11:27:33,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9428571428571428 [2022-11-16 11:27:33,666 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 429 transitions. [2022-11-16 11:27:33,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 429 transitions. [2022-11-16 11:27:33,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:33,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 429 transitions. [2022-11-16 11:27:33,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 11:27:33,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:33,691 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:33,693 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 183 flow. Second operand 5 states and 429 transitions. [2022-11-16 11:27:33,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 261 flow [2022-11-16 11:27:33,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:33,705 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 223 flow [2022-11-16 11:27:33,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2022-11-16 11:27:33,711 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2022-11-16 11:27:33,712 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 223 flow [2022-11-16 11:27:33,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states 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 11:27:33,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:33,712 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:33,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:27:33,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:33,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1690454289, now seen corresponding path program 1 times [2022-11-16 11:27:33,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:33,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030236406] [2022-11-16 11:27:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:33,835 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 11:27:33,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:33,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030236406] [2022-11-16 11:27:33,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030236406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:33,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:33,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:33,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32679569] [2022-11-16 11:27:33,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:33,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:33,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:33,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:33,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-11-16 11:27:33,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states 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 11:27:33,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:33,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-11-16 11:27:33,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:33,982 INFO L130 PetriNetUnfolder]: 2/181 cut-off events. [2022-11-16 11:27:33,983 INFO L131 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-11-16 11:27:33,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 181 events. 2/181 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 524 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 212. Up to 30 conditions per place. [2022-11-16 11:27:33,991 INFO L137 encePairwiseOnDemand]: 83/91 looper letters, 22 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2022-11-16 11:27:33,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 97 transitions, 293 flow [2022-11-16 11:27:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 365 transitions. [2022-11-16 11:27:33,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8021978021978022 [2022-11-16 11:27:33,996 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 365 transitions. [2022-11-16 11:27:33,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 365 transitions. [2022-11-16 11:27:33,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:33,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 365 transitions. [2022-11-16 11:27:33,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 11:27:34,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:34,000 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:34,001 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 223 flow. Second operand 5 states and 365 transitions. [2022-11-16 11:27:34,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 97 transitions, 293 flow [2022-11-16 11:27:34,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 97 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:34,006 INFO L231 Difference]: Finished difference. Result has 100 places, 95 transitions, 266 flow [2022-11-16 11:27:34,007 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=100, PETRI_TRANSITIONS=95} [2022-11-16 11:27:34,007 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2022-11-16 11:27:34,008 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 95 transitions, 266 flow [2022-11-16 11:27:34,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states 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 11:27:34,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,009 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] [2022-11-16 11:27:34,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:27:34,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,010 INFO L85 PathProgramCache]: Analyzing trace with hash 864475580, now seen corresponding path program 1 times [2022-11-16 11:27:34,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617755556] [2022-11-16 11:27:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:34,119 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 11:27:34,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:34,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617755556] [2022-11-16 11:27:34,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617755556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:34,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:34,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:34,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805474510] [2022-11-16 11:27:34,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:34,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:34,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:34,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:34,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:34,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-11-16 11:27:34,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 11:27:34,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:34,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-11-16 11:27:34,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:34,237 INFO L130 PetriNetUnfolder]: 7/228 cut-off events. [2022-11-16 11:27:34,237 INFO L131 PetriNetUnfolder]: For 33/37 co-relation queries the response was YES. [2022-11-16 11:27:34,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 228 events. 7/228 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 863 event pairs, 0 based on Foata normal form. 2/208 useless extension candidates. Maximal degree in co-relation 304. Up to 30 conditions per place. [2022-11-16 11:27:34,241 INFO L137 encePairwiseOnDemand]: 81/91 looper letters, 27 selfloop transitions, 8 changer transitions 0/103 dead transitions. [2022-11-16 11:27:34,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 103 transitions, 350 flow [2022-11-16 11:27:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 372 transitions. [2022-11-16 11:27:34,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8175824175824176 [2022-11-16 11:27:34,245 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 372 transitions. [2022-11-16 11:27:34,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 372 transitions. [2022-11-16 11:27:34,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:34,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 372 transitions. [2022-11-16 11:27:34,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states 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 11:27:34,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:34,251 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:34,251 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 266 flow. Second operand 5 states and 372 transitions. [2022-11-16 11:27:34,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 103 transitions, 350 flow [2022-11-16 11:27:34,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 103 transitions, 345 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:34,260 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 300 flow [2022-11-16 11:27:34,260 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=300, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2022-11-16 11:27:34,263 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2022-11-16 11:27:34,263 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 300 flow [2022-11-16 11:27:34,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 11:27:34,264 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,264 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] [2022-11-16 11:27:34,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:27:34,265 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,266 INFO L85 PathProgramCache]: Analyzing trace with hash 984637203, now seen corresponding path program 1 times [2022-11-16 11:27:34,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38990947] [2022-11-16 11:27:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:34,464 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 11:27:34,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:34,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38990947] [2022-11-16 11:27:34,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38990947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:34,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:34,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:34,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518824623] [2022-11-16 11:27:34,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:34,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:34,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:34,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:34,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:34,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2022-11-16 11:27:34,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states 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 11:27:34,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:34,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2022-11-16 11:27:34,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:34,581 INFO L130 PetriNetUnfolder]: 6/225 cut-off events. [2022-11-16 11:27:34,581 INFO L131 PetriNetUnfolder]: For 91/95 co-relation queries the response was YES. [2022-11-16 11:27:34,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 225 events. 6/225 cut-off events. For 91/95 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 849 event pairs, 0 based on Foata normal form. 3/210 useless extension candidates. Maximal degree in co-relation 318. Up to 16 conditions per place. [2022-11-16 11:27:34,584 INFO L137 encePairwiseOnDemand]: 78/91 looper letters, 13 selfloop transitions, 16 changer transitions 1/96 dead transitions. [2022-11-16 11:27:34,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 96 transitions, 351 flow [2022-11-16 11:27:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:27:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:27:34,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 547 transitions. [2022-11-16 11:27:34,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7513736263736264 [2022-11-16 11:27:34,587 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 547 transitions. [2022-11-16 11:27:34,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 547 transitions. [2022-11-16 11:27:34,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:34,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 547 transitions. [2022-11-16 11:27:34,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.375) internal successors, (547), 8 states have internal predecessors, (547), 0 states have call successors, (0), 0 states 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 11:27:34,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:34,592 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:34,593 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 300 flow. Second operand 8 states and 547 transitions. [2022-11-16 11:27:34,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 96 transitions, 351 flow [2022-11-16 11:27:34,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 96 transitions, 351 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:27:34,604 INFO L231 Difference]: Finished difference. Result has 109 places, 94 transitions, 315 flow [2022-11-16 11:27:34,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=315, PETRI_PLACES=109, PETRI_TRANSITIONS=94} [2022-11-16 11:27:34,606 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2022-11-16 11:27:34,606 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 94 transitions, 315 flow [2022-11-16 11:27:34,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states 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 11:27:34,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,607 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] [2022-11-16 11:27:34,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:27:34,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:34,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,610 INFO L85 PathProgramCache]: Analyzing trace with hash 458982394, now seen corresponding path program 1 times [2022-11-16 11:27:34,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712157481] [2022-11-16 11:27:34,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:34,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:34,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712157481] [2022-11-16 11:27:34,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712157481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:34,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:34,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:27:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538054370] [2022-11-16 11:27:34,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:34,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:27:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:27:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:27:34,729 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2022-11-16 11:27:34,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 94 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states 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 11:27:34,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:34,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2022-11-16 11:27:34,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:34,826 INFO L130 PetriNetUnfolder]: 6/207 cut-off events. [2022-11-16 11:27:34,826 INFO L131 PetriNetUnfolder]: For 122/126 co-relation queries the response was YES. [2022-11-16 11:27:34,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 207 events. 6/207 cut-off events. For 122/126 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 711 event pairs, 0 based on Foata normal form. 1/190 useless extension candidates. Maximal degree in co-relation 309. Up to 26 conditions per place. [2022-11-16 11:27:34,828 INFO L137 encePairwiseOnDemand]: 83/91 looper letters, 17 selfloop transitions, 10 changer transitions 0/93 dead transitions. [2022-11-16 11:27:34,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 93 transitions, 364 flow [2022-11-16 11:27:34,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:27:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:27:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2022-11-16 11:27:34,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-11-16 11:27:34,831 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2022-11-16 11:27:34,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2022-11-16 11:27:34,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:34,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2022-11-16 11:27:34,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states 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 11:27:34,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states 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 11:27:34,835 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 0 states 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 11:27:34,835 INFO L175 Difference]: Start difference. First operand has 109 places, 94 transitions, 315 flow. Second operand 6 states and 413 transitions. [2022-11-16 11:27:34,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 93 transitions, 364 flow [2022-11-16 11:27:34,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 93 transitions, 335 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 11:27:34,840 INFO L231 Difference]: Finished difference. Result has 105 places, 93 transitions, 301 flow [2022-11-16 11:27:34,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=105, PETRI_TRANSITIONS=93} [2022-11-16 11:27:34,841 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2022-11-16 11:27:34,841 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 93 transitions, 301 flow [2022-11-16 11:27:34,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states 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 11:27:34,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:34,842 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] [2022-11-16 11:27:34,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:27:34,842 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:34,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:34,843 INFO L85 PathProgramCache]: Analyzing trace with hash 972358224, now seen corresponding path program 1 times [2022-11-16 11:27:34,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:34,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859117104] [2022-11-16 11:27:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:34,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:34,959 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 11:27:34,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:34,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859117104] [2022-11-16 11:27:34,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859117104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:34,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:34,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:34,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540396618] [2022-11-16 11:27:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:34,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:34,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2022-11-16 11:27:34,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 301 flow. Second operand has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 11:27:34,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:34,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2022-11-16 11:27:34,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,064 INFO L130 PetriNetUnfolder]: 6/206 cut-off events. [2022-11-16 11:27:35,065 INFO L131 PetriNetUnfolder]: For 118/122 co-relation queries the response was YES. [2022-11-16 11:27:35,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 206 events. 6/206 cut-off events. For 118/122 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 707 event pairs, 0 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 299. Up to 21 conditions per place. [2022-11-16 11:27:35,066 INFO L137 encePairwiseOnDemand]: 81/91 looper letters, 16 selfloop transitions, 12 changer transitions 0/94 dead transitions. [2022-11-16 11:27:35,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 94 transitions, 354 flow [2022-11-16 11:27:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:27:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:27:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 546 transitions. [2022-11-16 11:27:35,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-11-16 11:27:35,069 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 546 transitions. [2022-11-16 11:27:35,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 546 transitions. [2022-11-16 11:27:35,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 546 transitions. [2022-11-16 11:27:35,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.25) internal successors, (546), 8 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:35,073 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:35,073 INFO L175 Difference]: Start difference. First operand has 105 places, 93 transitions, 301 flow. Second operand 8 states and 546 transitions. [2022-11-16 11:27:35,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 94 transitions, 354 flow [2022-11-16 11:27:35,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 94 transitions, 334 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:27:35,077 INFO L231 Difference]: Finished difference. Result has 106 places, 92 transitions, 298 flow [2022-11-16 11:27:35,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=298, PETRI_PLACES=106, PETRI_TRANSITIONS=92} [2022-11-16 11:27:35,078 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2022-11-16 11:27:35,078 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 92 transitions, 298 flow [2022-11-16 11:27:35,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 11:27:35,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,079 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:35,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:27:35,080 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:35,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1962496093, now seen corresponding path program 1 times [2022-11-16 11:27:35,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751188692] [2022-11-16 11:27:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,167 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 11:27:35,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751188692] [2022-11-16 11:27:35,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751188692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210591523] [2022-11-16 11:27:35,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:35,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:35,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2022-11-16 11:27:35,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 92 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states 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 11:27:35,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2022-11-16 11:27:35,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,264 INFO L130 PetriNetUnfolder]: 26/332 cut-off events. [2022-11-16 11:27:35,264 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-11-16 11:27:35,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 332 events. 26/332 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1758 event pairs, 0 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 517. Up to 32 conditions per place. [2022-11-16 11:27:35,267 INFO L137 encePairwiseOnDemand]: 84/91 looper letters, 20 selfloop transitions, 7 changer transitions 0/103 dead transitions. [2022-11-16 11:27:35,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 103 transitions, 390 flow [2022-11-16 11:27:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 425 transitions. [2022-11-16 11:27:35,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9340659340659341 [2022-11-16 11:27:35,270 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 425 transitions. [2022-11-16 11:27:35,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 425 transitions. [2022-11-16 11:27:35,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 425 transitions. [2022-11-16 11:27:35,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states 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 11:27:35,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,273 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,273 INFO L175 Difference]: Start difference. First operand has 106 places, 92 transitions, 298 flow. Second operand 5 states and 425 transitions. [2022-11-16 11:27:35,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 103 transitions, 390 flow [2022-11-16 11:27:35,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 103 transitions, 362 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-16 11:27:35,277 INFO L231 Difference]: Finished difference. Result has 106 places, 95 transitions, 317 flow [2022-11-16 11:27:35,278 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=317, PETRI_PLACES=106, PETRI_TRANSITIONS=95} [2022-11-16 11:27:35,279 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2022-11-16 11:27:35,279 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 95 transitions, 317 flow [2022-11-16 11:27:35,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states 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 11:27:35,280 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,281 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] [2022-11-16 11:27:35,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:27:35,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:35,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,282 INFO L85 PathProgramCache]: Analyzing trace with hash 707882694, now seen corresponding path program 1 times [2022-11-16 11:27:35,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863245910] [2022-11-16 11:27:35,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,396 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 11:27:35,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863245910] [2022-11-16 11:27:35,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863245910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524790933] [2022-11-16 11:27:35,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:35,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-11-16 11:27:35,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 95 transitions, 317 flow. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 11:27:35,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-11-16 11:27:35,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,469 INFO L130 PetriNetUnfolder]: 8/225 cut-off events. [2022-11-16 11:27:35,470 INFO L131 PetriNetUnfolder]: For 85/87 co-relation queries the response was YES. [2022-11-16 11:27:35,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 225 events. 8/225 cut-off events. For 85/87 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 900 event pairs, 0 based on Foata normal form. 2/214 useless extension candidates. Maximal degree in co-relation 378. Up to 51 conditions per place. [2022-11-16 11:27:35,471 INFO L137 encePairwiseOnDemand]: 84/91 looper letters, 21 selfloop transitions, 7 changer transitions 1/99 dead transitions. [2022-11-16 11:27:35,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 99 transitions, 383 flow [2022-11-16 11:27:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 363 transitions. [2022-11-16 11:27:35,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7978021978021979 [2022-11-16 11:27:35,474 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 363 transitions. [2022-11-16 11:27:35,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 363 transitions. [2022-11-16 11:27:35,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 363 transitions. [2022-11-16 11:27:35,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states 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 11:27:35,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,477 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,477 INFO L175 Difference]: Start difference. First operand has 106 places, 95 transitions, 317 flow. Second operand 5 states and 363 transitions. [2022-11-16 11:27:35,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 99 transitions, 383 flow [2022-11-16 11:27:35,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 99 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:35,480 INFO L231 Difference]: Finished difference. Result has 112 places, 97 transitions, 351 flow [2022-11-16 11:27:35,481 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=351, PETRI_PLACES=112, PETRI_TRANSITIONS=97} [2022-11-16 11:27:35,481 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 22 predicate places. [2022-11-16 11:27:35,482 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 97 transitions, 351 flow [2022-11-16 11:27:35,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 11:27:35,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,482 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] [2022-11-16 11:27:35,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:27:35,483 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:35,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,483 INFO L85 PathProgramCache]: Analyzing trace with hash 469527219, now seen corresponding path program 1 times [2022-11-16 11:27:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841892801] [2022-11-16 11:27:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,526 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 11:27:35,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841892801] [2022-11-16 11:27:35,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841892801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:35,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061568973] [2022-11-16 11:27:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:35,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:35,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:35,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-11-16 11:27:35,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 97 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 11:27:35,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-11-16 11:27:35,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,609 INFO L130 PetriNetUnfolder]: 8/224 cut-off events. [2022-11-16 11:27:35,609 INFO L131 PetriNetUnfolder]: For 135/137 co-relation queries the response was YES. [2022-11-16 11:27:35,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 224 events. 8/224 cut-off events. For 135/137 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 890 event pairs, 0 based on Foata normal form. 3/227 useless extension candidates. Maximal degree in co-relation 419. Up to 56 conditions per place. [2022-11-16 11:27:35,611 INFO L137 encePairwiseOnDemand]: 87/91 looper letters, 22 selfloop transitions, 1 changer transitions 5/98 dead transitions. [2022-11-16 11:27:35,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 98 transitions, 407 flow [2022-11-16 11:27:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 360 transitions. [2022-11-16 11:27:35,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7912087912087912 [2022-11-16 11:27:35,613 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 360 transitions. [2022-11-16 11:27:35,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 360 transitions. [2022-11-16 11:27:35,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 360 transitions. [2022-11-16 11:27:35,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 0 states have call successors, (0), 0 states 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 11:27:35,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,616 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:35,617 INFO L175 Difference]: Start difference. First operand has 112 places, 97 transitions, 351 flow. Second operand 5 states and 360 transitions. [2022-11-16 11:27:35,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 98 transitions, 407 flow [2022-11-16 11:27:35,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 98 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:35,620 INFO L231 Difference]: Finished difference. Result has 115 places, 93 transitions, 319 flow [2022-11-16 11:27:35,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=115, PETRI_TRANSITIONS=93} [2022-11-16 11:27:35,621 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 25 predicate places. [2022-11-16 11:27:35,622 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 93 transitions, 319 flow [2022-11-16 11:27:35,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 11:27:35,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,622 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] [2022-11-16 11:27:35,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:27:35,623 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:35,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1555040501, now seen corresponding path program 1 times [2022-11-16 11:27:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923179935] [2022-11-16 11:27:35,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,674 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 11:27:35,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923179935] [2022-11-16 11:27:35,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923179935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:35,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970505206] [2022-11-16 11:27:35,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:35,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:35,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:35,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-11-16 11:27:35,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 93 transitions, 319 flow. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 11:27:35,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-11-16 11:27:35,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:35,739 INFO L130 PetriNetUnfolder]: 7/212 cut-off events. [2022-11-16 11:27:35,740 INFO L131 PetriNetUnfolder]: For 118/120 co-relation queries the response was YES. [2022-11-16 11:27:35,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 212 events. 7/212 cut-off events. For 118/120 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 816 event pairs, 0 based on Foata normal form. 8/220 useless extension candidates. Maximal degree in co-relation 397. Up to 30 conditions per place. [2022-11-16 11:27:35,741 INFO L137 encePairwiseOnDemand]: 85/91 looper letters, 17 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2022-11-16 11:27:35,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 92 transitions, 357 flow [2022-11-16 11:27:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:27:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:27:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2022-11-16 11:27:35,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7967032967032966 [2022-11-16 11:27:35,743 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 290 transitions. [2022-11-16 11:27:35,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 290 transitions. [2022-11-16 11:27:35,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:35,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 290 transitions. [2022-11-16 11:27:35,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states 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 11:27:35,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 11:27:35,746 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 11:27:35,746 INFO L175 Difference]: Start difference. First operand has 115 places, 93 transitions, 319 flow. Second operand 4 states and 290 transitions. [2022-11-16 11:27:35,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 92 transitions, 357 flow [2022-11-16 11:27:35,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 92 transitions, 333 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-16 11:27:35,750 INFO L231 Difference]: Finished difference. Result has 107 places, 92 transitions, 299 flow [2022-11-16 11:27:35,750 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=107, PETRI_TRANSITIONS=92} [2022-11-16 11:27:35,752 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 17 predicate places. [2022-11-16 11:27:35,752 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 92 transitions, 299 flow [2022-11-16 11:27:35,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 11:27:35,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:35,753 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] [2022-11-16 11:27:35,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:27:35,753 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1301386552, now seen corresponding path program 1 times [2022-11-16 11:27:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140452265] [2022-11-16 11:27:35,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:35,870 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 11:27:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140452265] [2022-11-16 11:27:35,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140452265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:35,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:35,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418413671] [2022-11-16 11:27:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:35,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:35,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-16 11:27:35,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 92 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states 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 11:27:35,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:35,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-16 11:27:35,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:36,068 INFO L130 PetriNetUnfolder]: 84/614 cut-off events. [2022-11-16 11:27:36,068 INFO L131 PetriNetUnfolder]: For 234/246 co-relation queries the response was YES. [2022-11-16 11:27:36,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 614 events. 84/614 cut-off events. For 234/246 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4133 event pairs, 0 based on Foata normal form. 12/598 useless extension candidates. Maximal degree in co-relation 1136. Up to 38 conditions per place. [2022-11-16 11:27:36,073 INFO L137 encePairwiseOnDemand]: 83/91 looper letters, 34 selfloop transitions, 25 changer transitions 0/126 dead transitions. [2022-11-16 11:27:36,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 126 transitions, 531 flow [2022-11-16 11:27:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:27:36,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:27:36,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1021 transitions. [2022-11-16 11:27:36,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8630600169061707 [2022-11-16 11:27:36,076 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1021 transitions. [2022-11-16 11:27:36,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1021 transitions. [2022-11-16 11:27:36,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:36,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1021 transitions. [2022-11-16 11:27:36,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.53846153846153) internal successors, (1021), 13 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states 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 11:27:36,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 11:27:36,083 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 11:27:36,083 INFO L175 Difference]: Start difference. First operand has 107 places, 92 transitions, 299 flow. Second operand 13 states and 1021 transitions. [2022-11-16 11:27:36,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 126 transitions, 531 flow [2022-11-16 11:27:36,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 521 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:27:36,088 INFO L231 Difference]: Finished difference. Result has 117 places, 104 transitions, 405 flow [2022-11-16 11:27:36,088 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=405, PETRI_PLACES=117, PETRI_TRANSITIONS=104} [2022-11-16 11:27:36,089 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 27 predicate places. [2022-11-16 11:27:36,090 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 104 transitions, 405 flow [2022-11-16 11:27:36,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states 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 11:27:36,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:36,090 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] [2022-11-16 11:27:36,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:27:36,092 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:36,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:36,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1008557474, now seen corresponding path program 1 times [2022-11-16 11:27:36,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:36,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995925832] [2022-11-16 11:27:36,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:36,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:36,226 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 11:27:36,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:36,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995925832] [2022-11-16 11:27:36,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995925832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:36,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:36,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:36,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042733632] [2022-11-16 11:27:36,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:36,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:36,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:36,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:36,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:36,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-16 11:27:36,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 104 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states 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 11:27:36,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:36,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-16 11:27:36,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:36,402 INFO L130 PetriNetUnfolder]: 76/506 cut-off events. [2022-11-16 11:27:36,402 INFO L131 PetriNetUnfolder]: For 425/461 co-relation queries the response was YES. [2022-11-16 11:27:36,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 506 events. 76/506 cut-off events. For 425/461 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2997 event pairs, 0 based on Foata normal form. 28/514 useless extension candidates. Maximal degree in co-relation 1092. Up to 37 conditions per place. [2022-11-16 11:27:36,406 INFO L137 encePairwiseOnDemand]: 83/91 looper letters, 32 selfloop transitions, 33 changer transitions 0/132 dead transitions. [2022-11-16 11:27:36,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 644 flow [2022-11-16 11:27:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:27:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:27:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1019 transitions. [2022-11-16 11:27:36,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8613693998309383 [2022-11-16 11:27:36,409 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1019 transitions. [2022-11-16 11:27:36,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1019 transitions. [2022-11-16 11:27:36,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:36,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1019 transitions. [2022-11-16 11:27:36,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.38461538461539) internal successors, (1019), 13 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states 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 11:27:36,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 11:27:36,415 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 11:27:36,416 INFO L175 Difference]: Start difference. First operand has 117 places, 104 transitions, 405 flow. Second operand 13 states and 1019 transitions. [2022-11-16 11:27:36,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 644 flow [2022-11-16 11:27:36,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 580 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-11-16 11:27:36,421 INFO L231 Difference]: Finished difference. Result has 123 places, 114 transitions, 489 flow [2022-11-16 11:27:36,422 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=489, PETRI_PLACES=123, PETRI_TRANSITIONS=114} [2022-11-16 11:27:36,422 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 33 predicate places. [2022-11-16 11:27:36,422 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 114 transitions, 489 flow [2022-11-16 11:27:36,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states 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 11:27:36,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:36,423 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] [2022-11-16 11:27:36,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:27:36,423 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:36,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:36,424 INFO L85 PathProgramCache]: Analyzing trace with hash 961615460, now seen corresponding path program 1 times [2022-11-16 11:27:36,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:36,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102529855] [2022-11-16 11:27:36,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:36,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:36,498 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 11:27:36,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:36,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102529855] [2022-11-16 11:27:36,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102529855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:36,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:36,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:27:36,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521996336] [2022-11-16 11:27:36,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:36,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:27:36,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:36,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:27:36,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:27:36,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 91 [2022-11-16 11:27:36,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 114 transitions, 489 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 11:27:36,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:36,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 91 [2022-11-16 11:27:36,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:36,601 INFO L130 PetriNetUnfolder]: 31/380 cut-off events. [2022-11-16 11:27:36,601 INFO L131 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2022-11-16 11:27:36,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 380 events. 31/380 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2129 event pairs, 0 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 774. Up to 42 conditions per place. [2022-11-16 11:27:36,603 INFO L137 encePairwiseOnDemand]: 83/91 looper letters, 13 selfloop transitions, 8 changer transitions 22/113 dead transitions. [2022-11-16 11:27:36,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 113 transitions, 528 flow [2022-11-16 11:27:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:27:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:27:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 356 transitions. [2022-11-16 11:27:36,605 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7824175824175824 [2022-11-16 11:27:36,605 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 356 transitions. [2022-11-16 11:27:36,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 356 transitions. [2022-11-16 11:27:36,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:36,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 356 transitions. [2022-11-16 11:27:36,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 0 states 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 11:27:36,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:36,608 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 11:27:36,609 INFO L175 Difference]: Start difference. First operand has 123 places, 114 transitions, 489 flow. Second operand 5 states and 356 transitions. [2022-11-16 11:27:36,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 113 transitions, 528 flow [2022-11-16 11:27:36,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 485 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-11-16 11:27:36,614 INFO L231 Difference]: Finished difference. Result has 118 places, 91 transitions, 298 flow [2022-11-16 11:27:36,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=118, PETRI_TRANSITIONS=91} [2022-11-16 11:27:36,615 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 28 predicate places. [2022-11-16 11:27:36,616 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 91 transitions, 298 flow [2022-11-16 11:27:36,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 11:27:36,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:36,616 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:36,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:27:36,616 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:36,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:36,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2045119988, now seen corresponding path program 1 times [2022-11-16 11:27:36,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:36,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157391502] [2022-11-16 11:27:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:36,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:36,723 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 11:27:36,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:36,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157391502] [2022-11-16 11:27:36,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157391502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:36,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:36,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:36,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973810827] [2022-11-16 11:27:36,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:36,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:36,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:36,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:36,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:36,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-16 11:27:36,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 91 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 11:27:36,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:36,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-16 11:27:36,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:36,821 INFO L130 PetriNetUnfolder]: 19/208 cut-off events. [2022-11-16 11:27:36,821 INFO L131 PetriNetUnfolder]: For 95/125 co-relation queries the response was YES. [2022-11-16 11:27:36,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 208 events. 19/208 cut-off events. For 95/125 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 723 event pairs, 6 based on Foata normal form. 22/230 useless extension candidates. Maximal degree in co-relation 405. Up to 37 conditions per place. [2022-11-16 11:27:36,824 INFO L137 encePairwiseOnDemand]: 84/91 looper letters, 16 selfloop transitions, 2 changer transitions 12/96 dead transitions. [2022-11-16 11:27:36,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 96 transitions, 364 flow [2022-11-16 11:27:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:27:36,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:27:36,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 620 transitions. [2022-11-16 11:27:36,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516483516483516 [2022-11-16 11:27:36,827 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 620 transitions. [2022-11-16 11:27:36,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 620 transitions. [2022-11-16 11:27:36,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:36,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 620 transitions. [2022-11-16 11:27:36,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.5) internal successors, (620), 8 states have internal predecessors, (620), 0 states have call successors, (0), 0 states 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 11:27:36,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:36,831 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:36,832 INFO L175 Difference]: Start difference. First operand has 118 places, 91 transitions, 298 flow. Second operand 8 states and 620 transitions. [2022-11-16 11:27:36,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 96 transitions, 364 flow [2022-11-16 11:27:36,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 96 transitions, 320 flow, removed 3 selfloop flow, removed 12 redundant places. [2022-11-16 11:27:36,835 INFO L231 Difference]: Finished difference. Result has 108 places, 84 transitions, 223 flow [2022-11-16 11:27:36,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=223, PETRI_PLACES=108, PETRI_TRANSITIONS=84} [2022-11-16 11:27:36,836 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 18 predicate places. [2022-11-16 11:27:36,836 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 84 transitions, 223 flow [2022-11-16 11:27:36,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 11:27:36,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:36,836 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:36,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:27:36,837 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 11:27:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:36,837 INFO L85 PathProgramCache]: Analyzing trace with hash -250748084, now seen corresponding path program 1 times [2022-11-16 11:27:36,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:36,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115295406] [2022-11-16 11:27:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:36,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:36,941 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 11:27:36,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:36,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115295406] [2022-11-16 11:27:36,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115295406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:36,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:36,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403775994] [2022-11-16 11:27:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:36,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:36,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:36,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-16 11:27:36,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 84 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 11:27:36,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:36,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-16 11:27:36,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:37,025 INFO L130 PetriNetUnfolder]: 12/202 cut-off events. [2022-11-16 11:27:37,025 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:27:37,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 202 events. 12/202 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 690 event pairs, 0 based on Foata normal form. 4/206 useless extension candidates. Maximal degree in co-relation 295. Up to 16 conditions per place. [2022-11-16 11:27:37,026 INFO L137 encePairwiseOnDemand]: 84/91 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2022-11-16 11:27:37,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 85 transitions, 261 flow [2022-11-16 11:27:37,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:27:37,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:27:37,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 612 transitions. [2022-11-16 11:27:37,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8406593406593407 [2022-11-16 11:27:37,030 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 612 transitions. [2022-11-16 11:27:37,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 612 transitions. [2022-11-16 11:27:37,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:37,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 612 transitions. [2022-11-16 11:27:37,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 76.5) internal successors, (612), 8 states have internal predecessors, (612), 0 states have call successors, (0), 0 states 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 11:27:37,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:37,058 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 91.0) internal successors, (819), 9 states have internal predecessors, (819), 0 states have call successors, (0), 0 states 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 11:27:37,059 INFO L175 Difference]: Start difference. First operand has 108 places, 84 transitions, 223 flow. Second operand 8 states and 612 transitions. [2022-11-16 11:27:37,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 85 transitions, 261 flow [2022-11-16 11:27:37,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 85 transitions, 247 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-16 11:27:37,061 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2022-11-16 11:27:37,061 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2022-11-16 11:27:37,062 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2022-11-16 11:27:37,062 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2022-11-16 11:27:37,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 11:27:37,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-11-16 11:27:37,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-16 11:27:37,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-16 11:27:37,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-16 11:27:37,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-16 11:27:37,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-16 11:27:37,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-16 11:27:37,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-16 11:27:37,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-11-16 11:27:37,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-16 11:27:37,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-16 11:27:37,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-16 11:27:37,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-16 11:27:37,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:27:37,072 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:37,078 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:27:37,079 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:27:37,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:27:37 BasicIcfg [2022-11-16 11:27:37,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:27:37,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:27:37,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:27:37,087 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:27:37,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:32" (3/4) ... [2022-11-16 11:27:37,090 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:27:37,097 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:27:37,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 11:27:37,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:27:37,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:27:37,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:27:37,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:27:37,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:27:37,143 INFO L158 Benchmark]: Toolchain (without parser) took 5940.84ms. Allocated memory was 130.0MB in the beginning and 213.9MB in the end (delta: 83.9MB). Free memory was 89.5MB in the beginning and 181.2MB in the end (delta: -91.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:37,143 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 107.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:37,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 722.92ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 87.8MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:27:37,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.59ms. Allocated memory is still 130.0MB. Free memory was 87.8MB in the beginning and 85.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:27:37,144 INFO L158 Benchmark]: Boogie Preprocessor took 23.95ms. Allocated memory is still 130.0MB. Free memory was 85.8MB in the beginning and 84.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:37,144 INFO L158 Benchmark]: RCFGBuilder took 551.52ms. Allocated memory is still 130.0MB. Free memory was 84.2MB in the beginning and 70.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:27:37,145 INFO L158 Benchmark]: TraceAbstraction took 4536.51ms. Allocated memory was 130.0MB in the beginning and 213.9MB in the end (delta: 83.9MB). Free memory was 70.0MB in the beginning and 184.4MB in the end (delta: -114.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-11-16 11:27:37,145 INFO L158 Benchmark]: Witness Printer took 55.46ms. Allocated memory is still 213.9MB. Free memory was 184.4MB in the beginning and 181.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:27:37,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 107.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 722.92ms. Allocated memory is still 130.0MB. Free memory was 89.3MB in the beginning and 87.8MB in the end (delta: 1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.59ms. Allocated memory is still 130.0MB. Free memory was 87.8MB in the beginning and 85.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.95ms. Allocated memory is still 130.0MB. Free memory was 85.8MB in the beginning and 84.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 551.52ms. Allocated memory is still 130.0MB. Free memory was 84.2MB in the beginning and 70.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4536.51ms. Allocated memory was 130.0MB in the beginning and 213.9MB in the end (delta: 83.9MB). Free memory was 70.0MB in the beginning and 184.4MB in the end (delta: -114.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Witness Printer took 55.46ms. Allocated memory is still 213.9MB. Free memory was 184.4MB in the beginning and 181.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 336 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 191 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 562 IncrementalHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 145 mSDtfsCounter, 562 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=12, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 653 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 1378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:27:37,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b07e196-6cda-4a8b-aba6-1983727d792b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE