./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/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_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/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_90644a12-83d9-4625-85f7-c4532d95f5cb/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 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- 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 10:58:25,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:58:25,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:58:25,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:58:25,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:58:25,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:58:25,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:58:25,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:58:25,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:58:25,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:58:25,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:58:25,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:58:25,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:58:25,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:58:25,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:58:25,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:58:25,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:58:25,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:58:25,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:58:25,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:58:25,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:58:25,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:58:25,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:58:25,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:58:25,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:58:25,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:58:25,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:58:25,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:58:25,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:58:25,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:58:25,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:58:25,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:58:25,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:58:25,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:58:25,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:58:25,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:58:25,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:58:25,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:58:25,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:58:25,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:58:25,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:58:25,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 10:58:25,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:58:25,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:58:25,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:58:25,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:58:25,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:58:25,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:58:25,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:58:25,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:58:25,992 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:58:25,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:58:25,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:58:25,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:58:25,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:58:25,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:58:25,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:58:25,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:58:25,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:58:25,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:58:25,995 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 10:58:25,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:58:25,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:58:25,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:58:25,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:58:25,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:58:25,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:58:25,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:58:25,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:58:25,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:58:25,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:58:25,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:58:25,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:58:25,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:58:25,999 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:58:25,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:58:25,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:58:26,000 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_90644a12-83d9-4625-85f7-c4532d95f5cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2022-11-16 10:58:26,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:58:26,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:58:26,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:58:26,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:58:26,271 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:58:26,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-16 10:58:26,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/data/e12e99a02/7adbe161ce424d35ac8315f0e412528f/FLAGd6fd1c4c6 [2022-11-16 10:58:26,890 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:58:26,890 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-16 10:58:26,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/data/e12e99a02/7adbe161ce424d35ac8315f0e412528f/FLAGd6fd1c4c6 [2022-11-16 10:58:27,236 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/data/e12e99a02/7adbe161ce424d35ac8315f0e412528f [2022-11-16 10:58:27,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:58:27,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:58:27,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:58:27,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:58:27,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:58:27,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5236cf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27, skipping insertion in model container [2022-11-16 10:58:27,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:58:27,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:58:27,623 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-16 10:58:27,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:58:27,649 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:58:27,700 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-16 10:58:27,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:58:27,719 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:58:27,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27 WrapperNode [2022-11-16 10:58:27,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:58:27,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:58:27,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:58:27,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:58:27,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,768 INFO L138 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 421 [2022-11-16 10:58:27,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:58:27,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:58:27,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:58:27,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:58:27,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,830 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:58:27,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:58:27,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:58:27,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:58:27,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (1/1) ... [2022-11-16 10:58:27,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:58:27,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:27,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:58:27,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:58:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:58:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:58:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:58:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:58:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:58:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 10:58:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 10:58:27,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 10:58:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 10:58:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 10:58:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 10:58:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 10:58:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:58:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 10:58:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 10:58:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:58:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:58:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:58:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:58:27,940 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 10:58:28,098 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:58:28,101 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:58:28,831 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:58:29,239 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:58:29,240 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 10:58:29,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:58:29 BoogieIcfgContainer [2022-11-16 10:58:29,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:58:29,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:58:29,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:58:29,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:58:29,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:58:27" (1/3) ... [2022-11-16 10:58:29,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1a066d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:58:29, skipping insertion in model container [2022-11-16 10:58:29,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:58:27" (2/3) ... [2022-11-16 10:58:29,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1a066d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:58:29, skipping insertion in model container [2022-11-16 10:58:29,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:58:29" (3/3) ... [2022-11-16 10:58:29,258 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2022-11-16 10:58:29,266 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:58:29,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:58:29,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-16 10:58:29,278 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:58:29,462 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 10:58:29,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 422 places, 449 transitions, 922 flow [2022-11-16 10:58:29,776 INFO L130 PetriNetUnfolder]: 37/446 cut-off events. [2022-11-16 10:58:29,777 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 10:58:29,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 446 events. 37/446 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 592 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 360. Up to 2 conditions per place. [2022-11-16 10:58:29,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 422 places, 449 transitions, 922 flow [2022-11-16 10:58:29,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 425 transitions, 865 flow [2022-11-16 10:58:29,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:58:29,825 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;@54d94066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:58:29,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-16 10:58:29,840 INFO L130 PetriNetUnfolder]: 3/96 cut-off events. [2022-11-16 10:58:29,840 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:58:29,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:29,842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:29,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:29,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:29,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1072572112, now seen corresponding path program 1 times [2022-11-16 10:58:29,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:29,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172893991] [2022-11-16 10:58:29,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:29,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:30,373 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 10:58:30,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:30,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172893991] [2022-11-16 10:58:30,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172893991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:30,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:30,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:58:30,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611212705] [2022-11-16 10:58:30,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:30,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:58:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:30,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:58:30,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:58:30,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 449 [2022-11-16 10:58:30,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 425 transitions, 865 flow. Second operand has 4 states, 4 states have (on average 354.5) internal successors, (1418), 4 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states 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 10:58:30,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:30,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 449 [2022-11-16 10:58:30,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:31,126 INFO L130 PetriNetUnfolder]: 173/1029 cut-off events. [2022-11-16 10:58:31,127 INFO L131 PetriNetUnfolder]: For 88/96 co-relation queries the response was YES. [2022-11-16 10:58:31,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 1029 events. 173/1029 cut-off events. For 88/96 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4466 event pairs, 100 based on Foata normal form. 154/911 useless extension candidates. Maximal degree in co-relation 862. Up to 180 conditions per place. [2022-11-16 10:58:31,142 INFO L137 encePairwiseOnDemand]: 390/449 looper letters, 90 selfloop transitions, 19 changer transitions 12/441 dead transitions. [2022-11-16 10:58:31,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 441 transitions, 1130 flow [2022-11-16 10:58:31,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:58:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 10:58:31,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1938 transitions. [2022-11-16 10:58:31,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8632516703786192 [2022-11-16 10:58:31,167 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1938 transitions. [2022-11-16 10:58:31,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1938 transitions. [2022-11-16 10:58:31,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:31,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1938 transitions. [2022-11-16 10:58:31,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 387.6) internal successors, (1938), 5 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states 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 10:58:31,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states 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 10:58:31,198 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states 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 10:58:31,200 INFO L175 Difference]: Start difference. First operand has 399 places, 425 transitions, 865 flow. Second operand 5 states and 1938 transitions. [2022-11-16 10:58:31,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 441 transitions, 1130 flow [2022-11-16 10:58:31,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 441 transitions, 1112 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:58:31,218 INFO L231 Difference]: Finished difference. Result has 395 places, 396 transitions, 909 flow [2022-11-16 10:58:31,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=909, PETRI_PLACES=395, PETRI_TRANSITIONS=396} [2022-11-16 10:58:31,224 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, -4 predicate places. [2022-11-16 10:58:31,224 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 396 transitions, 909 flow [2022-11-16 10:58:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 354.5) internal successors, (1418), 4 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states 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 10:58:31,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:31,226 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:31,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:58:31,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1901730206, now seen corresponding path program 1 times [2022-11-16 10:58:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:31,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167871991] [2022-11-16 10:58:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:31,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:31,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:31,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167871991] [2022-11-16 10:58:31,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167871991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:58:31,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303412375] [2022-11-16 10:58:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:31,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:31,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:31,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:31,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:58:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:31,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:58:31,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:31,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:58:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:31,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303412375] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:58:31,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:58:31,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 10:58:31,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607968869] [2022-11-16 10:58:31,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:58:31,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 10:58:31,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:31,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 10:58:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 10:58:31,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 449 [2022-11-16 10:58:31,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 396 transitions, 909 flow. Second operand has 12 states, 12 states have (on average 355.6666666666667) internal successors, (4268), 12 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states 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 10:58:31,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:31,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 449 [2022-11-16 10:58:31,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:33,217 INFO L130 PetriNetUnfolder]: 431/2332 cut-off events. [2022-11-16 10:58:33,217 INFO L131 PetriNetUnfolder]: For 89/109 co-relation queries the response was YES. [2022-11-16 10:58:33,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3514 conditions, 2332 events. 431/2332 cut-off events. For 89/109 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14291 event pairs, 250 based on Foata normal form. 12/1724 useless extension candidates. Maximal degree in co-relation 2268. Up to 169 conditions per place. [2022-11-16 10:58:33,243 INFO L137 encePairwiseOnDemand]: 418/449 looper letters, 177 selfloop transitions, 84 changer transitions 0/581 dead transitions. [2022-11-16 10:58:33,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 581 transitions, 1931 flow [2022-11-16 10:58:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 10:58:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 10:58:33,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 6627 transitions. [2022-11-16 10:58:33,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.819970304380104 [2022-11-16 10:58:33,255 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 6627 transitions. [2022-11-16 10:58:33,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 6627 transitions. [2022-11-16 10:58:33,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:33,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 6627 transitions. [2022-11-16 10:58:33,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 368.1666666666667) internal successors, (6627), 18 states have internal predecessors, (6627), 0 states have call successors, (0), 0 states 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 10:58:33,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 449.0) internal successors, (8531), 19 states have internal predecessors, (8531), 0 states have call successors, (0), 0 states 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 10:58:33,294 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 449.0) internal successors, (8531), 19 states have internal predecessors, (8531), 0 states have call successors, (0), 0 states 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 10:58:33,294 INFO L175 Difference]: Start difference. First operand has 395 places, 396 transitions, 909 flow. Second operand 18 states and 6627 transitions. [2022-11-16 10:58:33,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 581 transitions, 1931 flow [2022-11-16 10:58:33,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 581 transitions, 1920 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:58:33,307 INFO L231 Difference]: Finished difference. Result has 403 places, 453 transitions, 1400 flow [2022-11-16 10:58:33,307 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1400, PETRI_PLACES=403, PETRI_TRANSITIONS=453} [2022-11-16 10:58:33,308 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, 4 predicate places. [2022-11-16 10:58:33,308 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 453 transitions, 1400 flow [2022-11-16 10:58:33,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 355.6666666666667) internal successors, (4268), 12 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states 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 10:58:33,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:33,311 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:33,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:33,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:33,518 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:33,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1175906909, now seen corresponding path program 1 times [2022-11-16 10:58:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:33,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761485857] [2022-11-16 10:58:33,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:33,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:33,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:33,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761485857] [2022-11-16 10:58:33,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761485857] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:58:33,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790992405] [2022-11-16 10:58:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:33,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:33,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:33,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:58:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:33,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:58:33,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:33,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790992405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:33,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:58:33,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 10:58:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694946586] [2022-11-16 10:58:33,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:33,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:58:33,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:58:33,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:58:33,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 449 [2022-11-16 10:58:33,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 453 transitions, 1400 flow. Second operand has 6 states, 6 states have (on average 355.3333333333333) internal successors, (2132), 6 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states 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 10:58:33,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:33,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 449 [2022-11-16 10:58:33,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:34,867 INFO L130 PetriNetUnfolder]: 431/2316 cut-off events. [2022-11-16 10:58:34,867 INFO L131 PetriNetUnfolder]: For 299/319 co-relation queries the response was YES. [2022-11-16 10:58:34,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 2316 events. 431/2316 cut-off events. For 299/319 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14193 event pairs, 250 based on Foata normal form. 16/1712 useless extension candidates. Maximal degree in co-relation 2816. Up to 576 conditions per place. [2022-11-16 10:58:34,894 INFO L137 encePairwiseOnDemand]: 426/449 looper letters, 91 selfloop transitions, 59 changer transitions 0/470 dead transitions. [2022-11-16 10:58:34,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 470 transitions, 1672 flow [2022-11-16 10:58:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:58:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 10:58:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2580 transitions. [2022-11-16 10:58:34,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8208717785555202 [2022-11-16 10:58:34,900 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2580 transitions. [2022-11-16 10:58:34,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2580 transitions. [2022-11-16 10:58:34,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:34,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2580 transitions. [2022-11-16 10:58:34,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 368.57142857142856) internal successors, (2580), 7 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states 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 10:58:34,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 449.0) internal successors, (3592), 8 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states 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 10:58:34,913 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 449.0) internal successors, (3592), 8 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states 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 10:58:34,914 INFO L175 Difference]: Start difference. First operand has 403 places, 453 transitions, 1400 flow. Second operand 7 states and 2580 transitions. [2022-11-16 10:58:34,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 470 transitions, 1672 flow [2022-11-16 10:58:34,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 470 transitions, 1514 flow, removed 56 selfloop flow, removed 5 redundant places. [2022-11-16 10:58:34,927 INFO L231 Difference]: Finished difference. Result has 396 places, 437 transitions, 1252 flow [2022-11-16 10:58:34,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1252, PETRI_PLACES=396, PETRI_TRANSITIONS=437} [2022-11-16 10:58:34,928 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, -3 predicate places. [2022-11-16 10:58:34,928 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 437 transitions, 1252 flow [2022-11-16 10:58:34,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.3333333333333) internal successors, (2132), 6 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states 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 10:58:34,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:34,930 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:34,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 10:58:35,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 10:58:35,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:35,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:35,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1452915120, now seen corresponding path program 2 times [2022-11-16 10:58:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:35,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278973301] [2022-11-16 10:58:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:35,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:35,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:35,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278973301] [2022-11-16 10:58:35,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278973301] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:58:35,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692971297] [2022-11-16 10:58:35,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:58:35,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:35,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:35,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:35,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:58:35,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 10:58:35,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:58:35,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 10:58:35,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 10:58:35,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:58:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 10:58:36,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692971297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:58:36,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:58:36,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-11-16 10:58:36,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220198514] [2022-11-16 10:58:36,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:58:36,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 10:58:36,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:36,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 10:58:36,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-16 10:58:36,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 449 [2022-11-16 10:58:36,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 437 transitions, 1252 flow. Second operand has 18 states, 18 states have (on average 330.6111111111111) internal successors, (5951), 18 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states 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 10:58:36,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:36,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 449 [2022-11-16 10:58:36,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:38,706 INFO L130 PetriNetUnfolder]: 1037/4099 cut-off events. [2022-11-16 10:58:38,706 INFO L131 PetriNetUnfolder]: For 406/434 co-relation queries the response was YES. [2022-11-16 10:58:38,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6474 conditions, 4099 events. 1037/4099 cut-off events. For 406/434 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 28849 event pairs, 623 based on Foata normal form. 8/2784 useless extension candidates. Maximal degree in co-relation 4728. Up to 271 conditions per place. [2022-11-16 10:58:38,743 INFO L137 encePairwiseOnDemand]: 413/449 looper letters, 256 selfloop transitions, 129 changer transitions 0/679 dead transitions. [2022-11-16 10:58:38,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 679 transitions, 2685 flow [2022-11-16 10:58:38,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 10:58:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-11-16 10:58:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 16416 transitions. [2022-11-16 10:58:38,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7461479023680742 [2022-11-16 10:58:38,774 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 16416 transitions. [2022-11-16 10:58:38,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 16416 transitions. [2022-11-16 10:58:38,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:38,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 16416 transitions. [2022-11-16 10:58:38,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 335.0204081632653) internal successors, (16416), 49 states have internal predecessors, (16416), 0 states have call successors, (0), 0 states 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 10:58:38,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 449.0) internal successors, (22450), 50 states have internal predecessors, (22450), 0 states have call successors, (0), 0 states 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 10:58:38,867 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 449.0) internal successors, (22450), 50 states have internal predecessors, (22450), 0 states have call successors, (0), 0 states 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 10:58:38,867 INFO L175 Difference]: Start difference. First operand has 396 places, 437 transitions, 1252 flow. Second operand 49 states and 16416 transitions. [2022-11-16 10:58:38,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 679 transitions, 2685 flow [2022-11-16 10:58:38,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 679 transitions, 2590 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:58:38,885 INFO L231 Difference]: Finished difference. Result has 442 places, 492 transitions, 1723 flow [2022-11-16 10:58:38,886 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=1723, PETRI_PLACES=442, PETRI_TRANSITIONS=492} [2022-11-16 10:58:38,887 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, 43 predicate places. [2022-11-16 10:58:38,888 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 492 transitions, 1723 flow [2022-11-16 10:58:38,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 330.6111111111111) internal successors, (5951), 18 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states 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 10:58:38,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:38,890 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:38,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:39,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:39,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash -435163169, now seen corresponding path program 1 times [2022-11-16 10:58:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:39,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970984737] [2022-11-16 10:58:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:39,226 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 10:58:39,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:39,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970984737] [2022-11-16 10:58:39,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970984737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:39,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:58:39,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:58:39,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027474703] [2022-11-16 10:58:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:39,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:58:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:39,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:58:39,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:58:39,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 449 [2022-11-16 10:58:39,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 492 transitions, 1723 flow. Second operand has 4 states, 4 states have (on average 390.5) internal successors, (1562), 4 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states 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 10:58:39,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:39,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 449 [2022-11-16 10:58:39,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:41,204 INFO L130 PetriNetUnfolder]: 1184/5726 cut-off events. [2022-11-16 10:58:41,204 INFO L131 PetriNetUnfolder]: For 569/625 co-relation queries the response was YES. [2022-11-16 10:58:41,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8783 conditions, 5726 events. 1184/5726 cut-off events. For 569/625 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 47656 event pairs, 700 based on Foata normal form. 0/4060 useless extension candidates. Maximal degree in co-relation 8484. Up to 981 conditions per place. [2022-11-16 10:58:41,262 INFO L137 encePairwiseOnDemand]: 443/449 looper letters, 42 selfloop transitions, 4 changer transitions 0/513 dead transitions. [2022-11-16 10:58:41,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 513 transitions, 1863 flow [2022-11-16 10:58:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:58:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 10:58:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1993 transitions. [2022-11-16 10:58:41,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8877505567928731 [2022-11-16 10:58:41,268 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1993 transitions. [2022-11-16 10:58:41,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1993 transitions. [2022-11-16 10:58:41,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:41,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1993 transitions. [2022-11-16 10:58:41,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 398.6) internal successors, (1993), 5 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states 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 10:58:41,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states 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 10:58:41,278 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states 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 10:58:41,279 INFO L175 Difference]: Start difference. First operand has 442 places, 492 transitions, 1723 flow. Second operand 5 states and 1993 transitions. [2022-11-16 10:58:41,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 513 transitions, 1863 flow [2022-11-16 10:58:41,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 513 transitions, 1700 flow, removed 23 selfloop flow, removed 15 redundant places. [2022-11-16 10:58:41,292 INFO L231 Difference]: Finished difference. Result has 434 places, 495 transitions, 1590 flow [2022-11-16 10:58:41,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1590, PETRI_PLACES=434, PETRI_TRANSITIONS=495} [2022-11-16 10:58:41,294 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, 35 predicate places. [2022-11-16 10:58:41,294 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 495 transitions, 1590 flow [2022-11-16 10:58:41,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 390.5) internal successors, (1562), 4 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states 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 10:58:41,295 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:41,296 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:41,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:58:41,296 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash 185675178, now seen corresponding path program 1 times [2022-11-16 10:58:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020832163] [2022-11-16 10:58:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:41,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:41,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:41,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020832163] [2022-11-16 10:58:41,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020832163] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:58:41,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34037103] [2022-11-16 10:58:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:41,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:41,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:41,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 10:58:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:41,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 10:58:41,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:42,037 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:42,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:58:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:42,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34037103] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:58:42,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:58:42,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-11-16 10:58:42,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940109401] [2022-11-16 10:58:42,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:58:42,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-16 10:58:42,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-16 10:58:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-11-16 10:58:42,380 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 449 [2022-11-16 10:58:42,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 495 transitions, 1590 flow. Second operand has 32 states, 32 states have (on average 356.28125) internal successors, (11401), 32 states have internal predecessors, (11401), 0 states have call successors, (0), 0 states 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 10:58:42,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:42,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 449 [2022-11-16 10:58:42,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:47,793 INFO L130 PetriNetUnfolder]: 2536/12117 cut-off events. [2022-11-16 10:58:47,793 INFO L131 PetriNetUnfolder]: For 1537/1657 co-relation queries the response was YES. [2022-11-16 10:58:47,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19017 conditions, 12117 events. 2536/12117 cut-off events. For 1537/1657 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 112034 event pairs, 1500 based on Foata normal form. 32/8609 useless extension candidates. Maximal degree in co-relation 18346. Up to 630 conditions per place. [2022-11-16 10:58:47,903 INFO L137 encePairwiseOnDemand]: 423/449 looper letters, 506 selfloop transitions, 218 changer transitions 0/1053 dead transitions. [2022-11-16 10:58:47,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1053 transitions, 5003 flow [2022-11-16 10:58:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 10:58:47,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-16 10:58:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 16280 transitions. [2022-11-16 10:58:47,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8240534521158129 [2022-11-16 10:58:47,928 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 16280 transitions. [2022-11-16 10:58:47,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 16280 transitions. [2022-11-16 10:58:47,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:47,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 16280 transitions. [2022-11-16 10:58:47,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 370.0) internal successors, (16280), 44 states have internal predecessors, (16280), 0 states have call successors, (0), 0 states 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 10:58:47,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 449.0) internal successors, (20205), 45 states have internal predecessors, (20205), 0 states have call successors, (0), 0 states 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 10:58:47,998 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 449.0) internal successors, (20205), 45 states have internal predecessors, (20205), 0 states have call successors, (0), 0 states 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 10:58:47,998 INFO L175 Difference]: Start difference. First operand has 434 places, 495 transitions, 1590 flow. Second operand 44 states and 16280 transitions. [2022-11-16 10:58:47,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1053 transitions, 5003 flow [2022-11-16 10:58:48,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 1053 transitions, 5001 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:58:48,022 INFO L231 Difference]: Finished difference. Result has 485 places, 621 transitions, 2963 flow [2022-11-16 10:58:48,023 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1588, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=2963, PETRI_PLACES=485, PETRI_TRANSITIONS=621} [2022-11-16 10:58:48,023 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, 86 predicate places. [2022-11-16 10:58:48,024 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 621 transitions, 2963 flow [2022-11-16 10:58:48,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 356.28125) internal successors, (11401), 32 states have internal predecessors, (11401), 0 states have call successors, (0), 0 states 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 10:58:48,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:48,027 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:48,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:48,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:48,234 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2097622978, now seen corresponding path program 1 times [2022-11-16 10:58:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:48,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361966126] [2022-11-16 10:58:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:48,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:58:48,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:48,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361966126] [2022-11-16 10:58:48,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361966126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:58:48,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840405724] [2022-11-16 10:58:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:48,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:48,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:48,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:48,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 10:58:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:48,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 10:58:48,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:58:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 10:58:48,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:58:48,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840405724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:58:48,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:58:48,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 13 [2022-11-16 10:58:48,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194680832] [2022-11-16 10:58:48,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:58:48,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 10:58:48,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:58:48,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 10:58:48,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 10:58:48,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 449 [2022-11-16 10:58:48,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 621 transitions, 2963 flow. Second operand has 9 states, 9 states have (on average 342.1111111111111) internal successors, (3079), 9 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states 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 10:58:48,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:58:48,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 449 [2022-11-16 10:58:48,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:58:58,500 INFO L130 PetriNetUnfolder]: 7651/25681 cut-off events. [2022-11-16 10:58:58,500 INFO L131 PetriNetUnfolder]: For 3932/4112 co-relation queries the response was YES. [2022-11-16 10:58:58,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42466 conditions, 25681 events. 7651/25681 cut-off events. For 3932/4112 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 258967 event pairs, 4815 based on Foata normal form. 0/16471 useless extension candidates. Maximal degree in co-relation 41730. Up to 8198 conditions per place. [2022-11-16 10:58:58,800 INFO L137 encePairwiseOnDemand]: 436/449 looper letters, 353 selfloop transitions, 33 changer transitions 0/750 dead transitions. [2022-11-16 10:58:58,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 750 transitions, 4481 flow [2022-11-16 10:58:58,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 10:58:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 10:58:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4184 transitions. [2022-11-16 10:58:58,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7765404602821084 [2022-11-16 10:58:58,814 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4184 transitions. [2022-11-16 10:58:58,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4184 transitions. [2022-11-16 10:58:58,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:58:58,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4184 transitions. [2022-11-16 10:58:58,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 348.6666666666667) internal successors, (4184), 12 states have internal predecessors, (4184), 0 states have call successors, (0), 0 states 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 10:58:58,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 449.0) internal successors, (5837), 13 states have internal predecessors, (5837), 0 states have call successors, (0), 0 states 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 10:58:58,842 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 449.0) internal successors, (5837), 13 states have internal predecessors, (5837), 0 states have call successors, (0), 0 states 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 10:58:58,842 INFO L175 Difference]: Start difference. First operand has 485 places, 621 transitions, 2963 flow. Second operand 12 states and 4184 transitions. [2022-11-16 10:58:58,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 750 transitions, 4481 flow [2022-11-16 10:58:58,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 750 transitions, 4297 flow, removed 1 selfloop flow, removed 15 redundant places. [2022-11-16 10:58:58,878 INFO L231 Difference]: Finished difference. Result has 485 places, 625 transitions, 2919 flow [2022-11-16 10:58:58,879 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=2826, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2919, PETRI_PLACES=485, PETRI_TRANSITIONS=625} [2022-11-16 10:58:58,880 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, 86 predicate places. [2022-11-16 10:58:58,881 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 625 transitions, 2919 flow [2022-11-16 10:58:58,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 342.1111111111111) internal successors, (3079), 9 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states 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 10:58:58,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:58:58,882 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:58:58,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 10:58:59,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:59,084 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:58:59,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:58:59,084 INFO L85 PathProgramCache]: Analyzing trace with hash -83199185, now seen corresponding path program 1 times [2022-11-16 10:58:59,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:58:59,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862757258] [2022-11-16 10:58:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:59,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:58:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 10:58:59,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:58:59,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862757258] [2022-11-16 10:58:59,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862757258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:58:59,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883850610] [2022-11-16 10:58:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:58:59,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:58:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:58:59,279 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:58:59,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 10:58:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:58:59,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 10:58:59,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:59:00,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:00,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:59:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:00,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883850610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:59:00,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:59:00,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 25 [2022-11-16 10:59:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746697818] [2022-11-16 10:59:00,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:59:00,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 10:59:00,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:00,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 10:59:00,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-16 10:59:00,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 449 [2022-11-16 10:59:00,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 625 transitions, 2919 flow. Second operand has 25 states, 25 states have (on average 317.56) internal successors, (7939), 25 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states 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 10:59:00,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:00,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 449 [2022-11-16 10:59:00,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:18,654 INFO L130 PetriNetUnfolder]: 15256/50124 cut-off events. [2022-11-16 10:59:18,654 INFO L131 PetriNetUnfolder]: For 5908/6268 co-relation queries the response was YES. [2022-11-16 10:59:18,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83371 conditions, 50124 events. 15256/50124 cut-off events. For 5908/6268 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 571876 event pairs, 9630 based on Foata normal form. 30/31794 useless extension candidates. Maximal degree in co-relation 82585. Up to 7900 conditions per place. [2022-11-16 10:59:19,154 INFO L137 encePairwiseOnDemand]: 421/449 looper letters, 676 selfloop transitions, 151 changer transitions 0/1107 dead transitions. [2022-11-16 10:59:19,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 1107 transitions, 7607 flow [2022-11-16 10:59:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-16 10:59:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-11-16 10:59:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 11242 transitions. [2022-11-16 10:59:19,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7153674832962138 [2022-11-16 10:59:19,171 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 11242 transitions. [2022-11-16 10:59:19,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 11242 transitions. [2022-11-16 10:59:19,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:19,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 11242 transitions. [2022-11-16 10:59:19,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 321.2) internal successors, (11242), 35 states have internal predecessors, (11242), 0 states have call successors, (0), 0 states 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 10:59:19,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 449.0) internal successors, (16164), 36 states have internal predecessors, (16164), 0 states have call successors, (0), 0 states 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 10:59:19,216 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 449.0) internal successors, (16164), 36 states have internal predecessors, (16164), 0 states have call successors, (0), 0 states 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 10:59:19,216 INFO L175 Difference]: Start difference. First operand has 485 places, 625 transitions, 2919 flow. Second operand 35 states and 11242 transitions. [2022-11-16 10:59:19,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 1107 transitions, 7607 flow [2022-11-16 10:59:19,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 1107 transitions, 7576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:19,268 INFO L231 Difference]: Finished difference. Result has 526 places, 721 transitions, 4000 flow [2022-11-16 10:59:19,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=2888, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=4000, PETRI_PLACES=526, PETRI_TRANSITIONS=721} [2022-11-16 10:59:19,270 INFO L288 CegarLoopForPetriNet]: 399 programPoint places, 127 predicate places. [2022-11-16 10:59:19,270 INFO L495 AbstractCegarLoop]: Abstraction has has 526 places, 721 transitions, 4000 flow [2022-11-16 10:59:19,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 317.56) internal successors, (7939), 25 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states 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 10:59:19,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:19,273 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:59:19,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 10:59:19,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90644a12-83d9-4625-85f7-c4532d95f5cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:19,480 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-16 10:59:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2054944747, now seen corresponding path program 1 times [2022-11-16 10:59:19,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:19,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61804209] [2022-11-16 10:59:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:19,659 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 10:59:19,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:19,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61804209] [2022-11-16 10:59:19,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61804209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:19,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:19,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 10:59:19,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820077361] [2022-11-16 10:59:19,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:19,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:59:19,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:19,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:59:19,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:59:19,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 449 [2022-11-16 10:59:19,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 721 transitions, 4000 flow. Second operand has 5 states, 5 states have (on average 393.6) internal successors, (1968), 5 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states 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 10:59:19,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:19,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 449 [2022-11-16 10:59:19,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand