./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:42:59,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:42:59,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:42:59,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:42:59,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:42:59,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:42:59,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:42:59,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:42:59,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:42:59,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:42:59,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:42:59,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:42:59,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:42:59,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:42:59,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:42:59,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:42:59,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:42:59,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:42:59,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:42:59,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:42:59,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:42:59,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:42:59,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:42:59,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:42:59,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:42:59,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:42:59,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:42:59,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:42:59,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:42:59,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:42:59,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:42:59,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:42:59,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:42:59,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:42:59,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:42:59,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:42:59,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:42:59,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:42:59,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:42:59,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:42:59,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:42:59,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 13:42:59,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:42:59,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:42:59,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:42:59,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:43:00,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:43:00,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:43:00,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:43:00,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:43:00,002 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:43:00,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:43:00,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:43:00,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:43:00,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:43:00,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:43:00,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:43:00,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:43:00,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:43:00,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:43:00,004 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 13:43:00,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:43:00,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:43:00,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:43:00,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:43:00,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:43:00,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:43:00,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:43:00,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:43:00,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:43:00,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:43:00,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:43:00,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:43:00,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:43:00,008 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:43:00,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:43:00,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:43:00,009 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_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2022-11-21 13:43:00,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:43:00,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:43:00,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:43:00,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:43:00,357 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:43:00,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-21 13:43:03,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:43:03,693 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:43:03,693 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-21 13:43:03,711 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/data/537b9e741/8341d6c03a224a6e85c91986f76b5399/FLAG61fd5f155 [2022-11-21 13:43:03,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/data/537b9e741/8341d6c03a224a6e85c91986f76b5399 [2022-11-21 13:43:03,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:43:03,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:43:03,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:43:03,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:43:03,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:43:03,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:43:03" (1/1) ... [2022-11-21 13:43:03,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f17ca06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:03, skipping insertion in model container [2022-11-21 13:43:03,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:43:03" (1/1) ... [2022-11-21 13:43:03,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:43:03,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:43:04,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-21 13:43:04,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:43:04,180 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:43:04,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-21 13:43:04,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:43:04,312 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:43:04,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04 WrapperNode [2022-11-21 13:43:04,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:43:04,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:43:04,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:43:04,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:43:04,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,500 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1656 [2022-11-21 13:43:04,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:43:04,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:43:04,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:43:04,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:43:04,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:43:04,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:43:04,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:43:04,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:43:04,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (1/1) ... [2022-11-21 13:43:04,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:43:04,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:43:04,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:43:04,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:43:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:43:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:43:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:43:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:43:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 13:43:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 13:43:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 13:43:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 13:43:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:43:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:43:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:43:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:43:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:43:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:43:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:43:04,704 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:43:04,961 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:43:04,967 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:43:07,013 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:43:10,015 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:43:10,016 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-21 13:43:10,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:43:10 BoogieIcfgContainer [2022-11-21 13:43:10,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:43:10,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:43:10,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:43:10,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:43:10,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:43:03" (1/3) ... [2022-11-21 13:43:10,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c89f76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:43:10, skipping insertion in model container [2022-11-21 13:43:10,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:04" (2/3) ... [2022-11-21 13:43:10,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c89f76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:43:10, skipping insertion in model container [2022-11-21 13:43:10,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:43:10" (3/3) ... [2022-11-21 13:43:10,034 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-11-21 13:43:10,043 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:43:10,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:43:10,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-11-21 13:43:10,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:43:10,981 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 13:43:11,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 563 transitions, 1142 flow [2022-11-21 13:43:11,373 INFO L130 PetriNetUnfolder]: 53/561 cut-off events. [2022-11-21 13:43:11,374 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 13:43:11,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 561 events. 53/561 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 979 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-11-21 13:43:11,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 563 transitions, 1142 flow [2022-11-21 13:43:11,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 543 transitions, 1098 flow [2022-11-21 13:43:11,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:43:11,412 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;@52c9fb44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:43:11,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-11-21 13:43:11,424 INFO L130 PetriNetUnfolder]: 3/69 cut-off events. [2022-11-21 13:43:11,424 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:43:11,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:11,425 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:11,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:43:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash 776852918, now seen corresponding path program 1 times [2022-11-21 13:43:11,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:11,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740742211] [2022-11-21 13:43:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:11,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:11,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740742211] [2022-11-21 13:43:11,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740742211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:43:11,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:43:11,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:43:11,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084545706] [2022-11-21 13:43:11,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:43:11,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:43:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:11,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:43:11,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:43:11,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-21 13:43:11,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 543 transitions, 1098 flow. Second operand has 4 states, 4 states have (on average 358.5) internal successors, (1434), 4 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:11,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:11,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-21 13:43:11,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:16,600 INFO L130 PetriNetUnfolder]: 1599/4216 cut-off events. [2022-11-21 13:43:16,600 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-11-21 13:43:16,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7071 conditions, 4216 events. 1599/4216 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 35217 event pairs, 880 based on Foata normal form. 196/2476 useless extension candidates. Maximal degree in co-relation 3027. Up to 1380 conditions per place. [2022-11-21 13:43:16,631 INFO L137 encePairwiseOnDemand]: 460/563 looper letters, 246 selfloop transitions, 39 changer transitions 20/626 dead transitions. [2022-11-21 13:43:16,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 626 transitions, 1850 flow [2022-11-21 13:43:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:43:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:43:16,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2168 transitions. [2022-11-21 13:43:16,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7701598579040853 [2022-11-21 13:43:16,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2168 transitions. [2022-11-21 13:43:16,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2168 transitions. [2022-11-21 13:43:16,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:16,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2168 transitions. [2022-11-21 13:43:16,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 433.6) internal successors, (2168), 5 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:16,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 563.0) internal successors, (3378), 6 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:16,687 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 563.0) internal successors, (3378), 6 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:16,689 INFO L175 Difference]: Start difference. First operand has 498 places, 543 transitions, 1098 flow. Second operand 5 states and 2168 transitions. [2022-11-21 13:43:16,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 626 transitions, 1850 flow [2022-11-21 13:43:16,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 626 transitions, 1834 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:43:16,719 INFO L231 Difference]: Finished difference. Result has 481 places, 507 transitions, 1244 flow [2022-11-21 13:43:16,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1244, PETRI_PLACES=481, PETRI_TRANSITIONS=507} [2022-11-21 13:43:16,726 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -17 predicate places. [2022-11-21 13:43:16,727 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 507 transitions, 1244 flow [2022-11-21 13:43:16,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 358.5) internal successors, (1434), 4 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:16,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:16,729 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:16,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:43:16,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:43:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:16,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2051519346, now seen corresponding path program 1 times [2022-11-21 13:43:16,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:16,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898194364] [2022-11-21 13:43:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:16,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:16,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:16,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898194364] [2022-11-21 13:43:16,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898194364] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:43:16,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837132376] [2022-11-21 13:43:16,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:16,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:16,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:43:16,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:43:17,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:43:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:17,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:43:17,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:43:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:18,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:43:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:18,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837132376] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:43:18,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:43:18,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 13:43:18,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936621861] [2022-11-21 13:43:18,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:43:18,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 13:43:18,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:18,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 13:43:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:43:18,073 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-21 13:43:18,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 507 transitions, 1244 flow. Second operand has 12 states, 12 states have (on average 359.6666666666667) internal successors, (4316), 12 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:18,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:18,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-21 13:43:18,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:28,213 INFO L130 PetriNetUnfolder]: 3996/10219 cut-off events. [2022-11-21 13:43:28,213 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2022-11-21 13:43:28,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17332 conditions, 10219 events. 3996/10219 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 94721 event pairs, 2200 based on Foata normal form. 24/5483 useless extension candidates. Maximal degree in co-relation 12724. Up to 1360 conditions per place. [2022-11-21 13:43:28,279 INFO L137 encePairwiseOnDemand]: 500/563 looper letters, 519 selfloop transitions, 172 changer transitions 0/1012 dead transitions. [2022-11-21 13:43:28,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1012 transitions, 3866 flow [2022-11-21 13:43:28,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 13:43:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 13:43:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 7141 transitions. [2022-11-21 13:43:28,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7046575883165581 [2022-11-21 13:43:28,296 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 7141 transitions. [2022-11-21 13:43:28,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 7141 transitions. [2022-11-21 13:43:28,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:28,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 7141 transitions. [2022-11-21 13:43:28,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 396.72222222222223) internal successors, (7141), 18 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:28,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 563.0) internal successors, (10697), 19 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:28,345 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 563.0) internal successors, (10697), 19 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:28,346 INFO L175 Difference]: Start difference. First operand has 481 places, 507 transitions, 1244 flow. Second operand 18 states and 7141 transitions. [2022-11-21 13:43:28,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1012 transitions, 3866 flow [2022-11-21 13:43:28,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1012 transitions, 3843 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:43:28,366 INFO L231 Difference]: Finished difference. Result has 482 places, 624 transitions, 2251 flow [2022-11-21 13:43:28,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2251, PETRI_PLACES=482, PETRI_TRANSITIONS=624} [2022-11-21 13:43:28,368 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -16 predicate places. [2022-11-21 13:43:28,368 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 624 transitions, 2251 flow [2022-11-21 13:43:28,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 359.6666666666667) internal successors, (4316), 12 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:28,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:28,372 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:28,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:43:28,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-21 13:43:28,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:43:28,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:28,589 INFO L85 PathProgramCache]: Analyzing trace with hash -827404254, now seen corresponding path program 1 times [2022-11-21 13:43:28,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:28,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659453811] [2022-11-21 13:43:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:28,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:28,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:28,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659453811] [2022-11-21 13:43:28,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659453811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:43:28,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734377859] [2022-11-21 13:43:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:28,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:28,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:43:28,777 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:43:28,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:43:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:29,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:43:29,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:43:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:29,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:43:29,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734377859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:43:29,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:43:29,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 13:43:29,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553740011] [2022-11-21 13:43:29,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:43:29,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:43:29,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:29,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:43:29,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 13:43:29,587 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-21 13:43:29,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 624 transitions, 2251 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:29,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:29,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-21 13:43:29,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:38,182 INFO L130 PetriNetUnfolder]: 3996/10187 cut-off events. [2022-11-21 13:43:38,182 INFO L131 PetriNetUnfolder]: For 670/670 co-relation queries the response was YES. [2022-11-21 13:43:38,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17483 conditions, 10187 events. 3996/10187 cut-off events. For 670/670 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 94393 event pairs, 2200 based on Foata normal form. 32/5459 useless extension candidates. Maximal degree in co-relation 13865. Up to 5228 conditions per place. [2022-11-21 13:43:38,239 INFO L137 encePairwiseOnDemand]: 516/563 looper letters, 247 selfloop transitions, 123 changer transitions 0/691 dead transitions. [2022-11-21 13:43:38,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 691 transitions, 2992 flow [2022-11-21 13:43:38,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:43:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-21 13:43:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2784 transitions. [2022-11-21 13:43:38,247 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7064196904339001 [2022-11-21 13:43:38,248 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2784 transitions. [2022-11-21 13:43:38,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2784 transitions. [2022-11-21 13:43:38,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:38,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2784 transitions. [2022-11-21 13:43:38,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 397.7142857142857) internal successors, (2784), 7 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:38,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 563.0) internal successors, (4504), 8 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:38,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 563.0) internal successors, (4504), 8 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:38,266 INFO L175 Difference]: Start difference. First operand has 482 places, 624 transitions, 2251 flow. Second operand 7 states and 2784 transitions. [2022-11-21 13:43:38,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 691 transitions, 2992 flow [2022-11-21 13:43:38,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 691 transitions, 2666 flow, removed 116 selfloop flow, removed 5 redundant places. [2022-11-21 13:43:38,288 INFO L231 Difference]: Finished difference. Result has 471 places, 592 transitions, 1955 flow [2022-11-21 13:43:38,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1709, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1955, PETRI_PLACES=471, PETRI_TRANSITIONS=592} [2022-11-21 13:43:38,292 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -27 predicate places. [2022-11-21 13:43:38,292 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 592 transitions, 1955 flow [2022-11-21 13:43:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:38,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:38,294 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:38,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:43:38,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:38,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:43:38,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:38,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1871142070, now seen corresponding path program 2 times [2022-11-21 13:43:38,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:38,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320004149] [2022-11-21 13:43:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:38,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:38,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:38,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320004149] [2022-11-21 13:43:38,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320004149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:43:38,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111132863] [2022-11-21 13:43:38,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:43:38,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:38,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:43:38,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:43:38,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 13:43:39,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 13:43:39,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:43:39,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:43:39,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:43:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-21 13:43:39,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:43:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-21 13:43:39,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111132863] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:43:39,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:43:39,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 17 [2022-11-21 13:43:39,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930632183] [2022-11-21 13:43:39,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:43:39,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 13:43:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 13:43:39,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-21 13:43:39,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-21 13:43:39,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 592 transitions, 1955 flow. Second operand has 18 states, 18 states have (on average 321.0) internal successors, (5778), 18 states have internal predecessors, (5778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:39,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:39,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-21 13:43:39,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:43:53,506 INFO L130 PetriNetUnfolder]: 5588/14015 cut-off events. [2022-11-21 13:43:53,506 INFO L131 PetriNetUnfolder]: For 692/692 co-relation queries the response was YES. [2022-11-21 13:43:53,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23994 conditions, 14015 events. 5588/14015 cut-off events. For 692/692 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 133409 event pairs, 3080 based on Foata normal form. 10/7367 useless extension candidates. Maximal degree in co-relation 19075. Up to 1288 conditions per place. [2022-11-21 13:43:53,588 INFO L137 encePairwiseOnDemand]: 496/563 looper letters, 683 selfloop transitions, 210 changer transitions 0/1174 dead transitions. [2022-11-21 13:43:53,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1174 transitions, 5007 flow [2022-11-21 13:43:53,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-21 13:43:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-11-21 13:43:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 15485 transitions. [2022-11-21 13:43:53,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5979226195072979 [2022-11-21 13:43:53,622 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 15485 transitions. [2022-11-21 13:43:53,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 15485 transitions. [2022-11-21 13:43:53,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:43:53,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 15485 transitions. [2022-11-21 13:43:53,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 336.6304347826087) internal successors, (15485), 46 states have internal predecessors, (15485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:53,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 563.0) internal successors, (26461), 47 states have internal predecessors, (26461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:53,712 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 563.0) internal successors, (26461), 47 states have internal predecessors, (26461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:53,712 INFO L175 Difference]: Start difference. First operand has 471 places, 592 transitions, 1955 flow. Second operand 46 states and 15485 transitions. [2022-11-21 13:43:53,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1174 transitions, 5007 flow [2022-11-21 13:43:53,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1174 transitions, 4769 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-21 13:43:53,734 INFO L231 Difference]: Finished difference. Result has 501 places, 631 transitions, 2296 flow [2022-11-21 13:43:53,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=2296, PETRI_PLACES=501, PETRI_TRANSITIONS=631} [2022-11-21 13:43:53,737 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 3 predicate places. [2022-11-21 13:43:53,737 INFO L495 AbstractCegarLoop]: Abstraction has has 501 places, 631 transitions, 2296 flow [2022-11-21 13:43:53,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 321.0) internal successors, (5778), 18 states have internal predecessors, (5778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:53,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:43:53,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:43:53,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:43:53,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:43:53,948 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:43:53,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:43:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1910941104, now seen corresponding path program 1 times [2022-11-21 13:43:53,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:43:53,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251520865] [2022-11-21 13:43:53,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:43:53,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:43:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:43:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:43:54,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:43:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251520865] [2022-11-21 13:43:54,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251520865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:43:54,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:43:54,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:43:54,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79406528] [2022-11-21 13:43:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:43:54,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:43:54,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:43:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:43:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:43:54,200 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-21 13:43:54,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 631 transitions, 2296 flow. Second operand has 5 states, 5 states have (on average 370.2) internal successors, (1851), 5 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:43:54,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:43:54,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-21 13:43:54,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:02,791 INFO L130 PetriNetUnfolder]: 4793/12124 cut-off events. [2022-11-21 13:44:02,792 INFO L131 PetriNetUnfolder]: For 877/877 co-relation queries the response was YES. [2022-11-21 13:44:02,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20800 conditions, 12124 events. 4793/12124 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 113515 event pairs, 2640 based on Foata normal form. 4/6462 useless extension candidates. Maximal degree in co-relation 19586. Up to 7779 conditions per place. [2022-11-21 13:44:02,861 INFO L137 encePairwiseOnDemand]: 541/563 looper letters, 251 selfloop transitions, 36 changer transitions 0/634 dead transitions. [2022-11-21 13:44:02,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 634 transitions, 2865 flow [2022-11-21 13:44:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:44:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:44:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2022-11-21 13:44:02,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6859088217880402 [2022-11-21 13:44:02,867 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2317 transitions. [2022-11-21 13:44:02,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2317 transitions. [2022-11-21 13:44:02,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:02,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2317 transitions. [2022-11-21 13:44:02,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,880 INFO L175 Difference]: Start difference. First operand has 501 places, 631 transitions, 2296 flow. Second operand 6 states and 2317 transitions. [2022-11-21 13:44:02,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 634 transitions, 2865 flow [2022-11-21 13:44:02,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 634 transitions, 2440 flow, removed 25 selfloop flow, removed 16 redundant places. [2022-11-21 13:44:02,895 INFO L231 Difference]: Finished difference. Result has 491 places, 626 transitions, 1926 flow [2022-11-21 13:44:02,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1926, PETRI_PLACES=491, PETRI_TRANSITIONS=626} [2022-11-21 13:44:02,897 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -7 predicate places. [2022-11-21 13:44:02,897 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 626 transitions, 1926 flow [2022-11-21 13:44:02,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 370.2) internal successors, (1851), 5 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:02,898 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:02,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:44:02,899 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:44:02,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1966004320, now seen corresponding path program 1 times [2022-11-21 13:44:02,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:02,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828981775] [2022-11-21 13:44:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:02,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 13:44:03,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:03,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828981775] [2022-11-21 13:44:03,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828981775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:03,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:03,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:44:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043247849] [2022-11-21 13:44:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:03,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:44:03,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:03,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:44:03,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:44:03,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 563 [2022-11-21 13:44:03,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 626 transitions, 1926 flow. Second operand has 5 states, 5 states have (on average 373.4) internal successors, (1867), 5 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:03,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:03,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 563 [2022-11-21 13:44:03,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:12,270 INFO L130 PetriNetUnfolder]: 4789/12084 cut-off events. [2022-11-21 13:44:12,270 INFO L131 PetriNetUnfolder]: For 467/467 co-relation queries the response was YES. [2022-11-21 13:44:12,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20595 conditions, 12084 events. 4789/12084 cut-off events. For 467/467 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 112843 event pairs, 2640 based on Foata normal form. 4/6422 useless extension candidates. Maximal degree in co-relation 19385. Up to 7814 conditions per place. [2022-11-21 13:44:12,333 INFO L137 encePairwiseOnDemand]: 541/563 looper letters, 244 selfloop transitions, 38 changer transitions 0/629 dead transitions. [2022-11-21 13:44:12,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 629 transitions, 2488 flow [2022-11-21 13:44:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:44:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:44:12,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2022-11-21 13:44:12,338 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6859088217880402 [2022-11-21 13:44:12,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2317 transitions. [2022-11-21 13:44:12,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2317 transitions. [2022-11-21 13:44:12,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:12,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2317 transitions. [2022-11-21 13:44:12,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:12,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:12,350 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 563.0) internal successors, (3941), 7 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:12,351 INFO L175 Difference]: Start difference. First operand has 491 places, 626 transitions, 1926 flow. Second operand 6 states and 2317 transitions. [2022-11-21 13:44:12,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 629 transitions, 2488 flow [2022-11-21 13:44:12,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 629 transitions, 2426 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:44:12,364 INFO L231 Difference]: Finished difference. Result has 492 places, 621 transitions, 1930 flow [2022-11-21 13:44:12,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1838, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1930, PETRI_PLACES=492, PETRI_TRANSITIONS=621} [2022-11-21 13:44:12,365 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, -6 predicate places. [2022-11-21 13:44:12,366 INFO L495 AbstractCegarLoop]: Abstraction has has 492 places, 621 transitions, 1930 flow [2022-11-21 13:44:12,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 373.4) internal successors, (1867), 5 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:12,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:12,367 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:12,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:44:12,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:44:12,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:12,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1821029041, now seen corresponding path program 1 times [2022-11-21 13:44:12,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:12,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288443056] [2022-11-21 13:44:12,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:12,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 13:44:12,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:12,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288443056] [2022-11-21 13:44:12,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288443056] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:12,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82613294] [2022-11-21 13:44:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:12,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:12,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:12,734 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:12,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 13:44:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:13,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:44:13,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:13,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 13:44:13,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 13:44:13,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82613294] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:13,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:13,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-21 13:44:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146838571] [2022-11-21 13:44:13,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:13,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 13:44:13,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:13,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 13:44:13,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-21 13:44:13,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-21 13:44:13,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 621 transitions, 1930 flow. Second operand has 15 states, 15 states have (on average 326.73333333333335) internal successors, (4901), 15 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:13,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:13,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-21 13:44:13,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:20,655 INFO L130 PetriNetUnfolder]: 3195/8262 cut-off events. [2022-11-21 13:44:20,656 INFO L131 PetriNetUnfolder]: For 297/297 co-relation queries the response was YES. [2022-11-21 13:44:20,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14275 conditions, 8262 events. 3195/8262 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73796 event pairs, 1760 based on Foata normal form. 12/4496 useless extension candidates. Maximal degree in co-relation 13066. Up to 5165 conditions per place. [2022-11-21 13:44:20,693 INFO L137 encePairwiseOnDemand]: 497/563 looper letters, 251 selfloop transitions, 130 changer transitions 0/662 dead transitions. [2022-11-21 13:44:20,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 662 transitions, 2788 flow [2022-11-21 13:44:20,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 13:44:20,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 13:44:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 6306 transitions. [2022-11-21 13:44:20,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5895110778723006 [2022-11-21 13:44:20,708 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 6306 transitions. [2022-11-21 13:44:20,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 6306 transitions. [2022-11-21 13:44:20,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:20,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 6306 transitions. [2022-11-21 13:44:20,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 331.89473684210526) internal successors, (6306), 19 states have internal predecessors, (6306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:20,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 563.0) internal successors, (11260), 20 states have internal predecessors, (11260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:20,744 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 563.0) internal successors, (11260), 20 states have internal predecessors, (11260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:20,744 INFO L175 Difference]: Start difference. First operand has 492 places, 621 transitions, 1930 flow. Second operand 19 states and 6306 transitions. [2022-11-21 13:44:20,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 662 transitions, 2788 flow [2022-11-21 13:44:20,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 662 transitions, 2730 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:44:20,758 INFO L231 Difference]: Finished difference. Result has 510 places, 614 transitions, 2264 flow [2022-11-21 13:44:20,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2264, PETRI_PLACES=510, PETRI_TRANSITIONS=614} [2022-11-21 13:44:20,760 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 12 predicate places. [2022-11-21 13:44:20,760 INFO L495 AbstractCegarLoop]: Abstraction has has 510 places, 614 transitions, 2264 flow [2022-11-21 13:44:20,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 326.73333333333335) internal successors, (4901), 15 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:20,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:20,763 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:20,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:20,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:20,972 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:44:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 471242240, now seen corresponding path program 2 times [2022-11-21 13:44:20,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:20,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997967488] [2022-11-21 13:44:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:20,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-21 13:44:21,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:21,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997967488] [2022-11-21 13:44:21,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997967488] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:21,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598183007] [2022-11-21 13:44:21,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:44:21,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:21,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:21,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:21,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 13:44:22,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 13:44:22,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:44:22,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 13:44:22,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-21 13:44:22,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:22,899 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-21 13:44:22,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598183007] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:22,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:22,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 22 [2022-11-21 13:44:22,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829911141] [2022-11-21 13:44:22,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:22,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 13:44:22,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 13:44:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2022-11-21 13:44:22,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-21 13:44:22,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 614 transitions, 2264 flow. Second operand has 22 states, 22 states have (on average 328.59090909090907) internal successors, (7229), 22 states have internal predecessors, (7229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:22,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:22,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-21 13:44:22,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:27,909 INFO L130 PetriNetUnfolder]: 1597/4400 cut-off events. [2022-11-21 13:44:27,909 INFO L131 PetriNetUnfolder]: For 486/486 co-relation queries the response was YES. [2022-11-21 13:44:27,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7964 conditions, 4400 events. 1597/4400 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 34989 event pairs, 880 based on Foata normal form. 16/2528 useless extension candidates. Maximal degree in co-relation 6784. Up to 2587 conditions per place. [2022-11-21 13:44:27,928 INFO L137 encePairwiseOnDemand]: 497/563 looper letters, 275 selfloop transitions, 144 changer transitions 0/700 dead transitions. [2022-11-21 13:44:27,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 700 transitions, 3362 flow [2022-11-21 13:44:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 13:44:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-21 13:44:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 10226 transitions. [2022-11-21 13:44:27,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.585916461353349 [2022-11-21 13:44:27,943 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 10226 transitions. [2022-11-21 13:44:27,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 10226 transitions. [2022-11-21 13:44:27,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:27,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 10226 transitions. [2022-11-21 13:44:27,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 329.8709677419355) internal successors, (10226), 31 states have internal predecessors, (10226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:27,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 563.0) internal successors, (18016), 32 states have internal predecessors, (18016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:27,991 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 563.0) internal successors, (18016), 32 states have internal predecessors, (18016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:27,991 INFO L175 Difference]: Start difference. First operand has 510 places, 614 transitions, 2264 flow. Second operand 31 states and 10226 transitions. [2022-11-21 13:44:27,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 700 transitions, 3362 flow [2022-11-21 13:44:27,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 700 transitions, 3306 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-11-21 13:44:28,007 INFO L231 Difference]: Finished difference. Result has 537 places, 600 transitions, 2564 flow [2022-11-21 13:44:28,008 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=2564, PETRI_PLACES=537, PETRI_TRANSITIONS=600} [2022-11-21 13:44:28,012 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 39 predicate places. [2022-11-21 13:44:28,012 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 600 transitions, 2564 flow [2022-11-21 13:44:28,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 328.59090909090907) internal successors, (7229), 22 states have internal predecessors, (7229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:28,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:28,015 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:28,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:28,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:28,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:44:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash 183667616, now seen corresponding path program 3 times [2022-11-21 13:44:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:28,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506169027] [2022-11-21 13:44:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:28,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-11-21 13:44:29,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:29,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506169027] [2022-11-21 13:44:29,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506169027] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:29,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175778882] [2022-11-21 13:44:29,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 13:44:29,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:29,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:29,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:29,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 13:44:33,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-21 13:44:33,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:44:33,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-21 13:44:33,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-11-21 13:44:33,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:33,979 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-11-21 13:44:33,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175778882] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:33,980 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:33,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 15] total 40 [2022-11-21 13:44:33,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529646344] [2022-11-21 13:44:33,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:33,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-21 13:44:33,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-21 13:44:33,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1211, Unknown=0, NotChecked=0, Total=1560 [2022-11-21 13:44:33,992 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 563 [2022-11-21 13:44:34,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 600 transitions, 2564 flow. Second operand has 40 states, 40 states have (on average 307.45) internal successors, (12298), 40 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:34,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:34,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 563 [2022-11-21 13:44:34,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:38,104 INFO L130 PetriNetUnfolder]: 804/2619 cut-off events. [2022-11-21 13:44:38,104 INFO L131 PetriNetUnfolder]: For 1123/1123 co-relation queries the response was YES. [2022-11-21 13:44:38,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5341 conditions, 2619 events. 804/2619 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 16016 event pairs, 440 based on Foata normal form. 12/1687 useless extension candidates. Maximal degree in co-relation 3992. Up to 1290 conditions per place. [2022-11-21 13:44:38,120 INFO L137 encePairwiseOnDemand]: 531/563 looper letters, 309 selfloop transitions, 127 changer transitions 0/701 dead transitions. [2022-11-21 13:44:38,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 701 transitions, 4010 flow [2022-11-21 13:44:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-21 13:44:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-21 13:44:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 11486 transitions. [2022-11-21 13:44:38,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.551389755652633 [2022-11-21 13:44:38,135 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 11486 transitions. [2022-11-21 13:44:38,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 11486 transitions. [2022-11-21 13:44:38,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:38,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 11486 transitions. [2022-11-21 13:44:38,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 310.43243243243245) internal successors, (11486), 37 states have internal predecessors, (11486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:38,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 563.0) internal successors, (21394), 38 states have internal predecessors, (21394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:38,184 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 563.0) internal successors, (21394), 38 states have internal predecessors, (21394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:38,184 INFO L175 Difference]: Start difference. First operand has 537 places, 600 transitions, 2564 flow. Second operand 37 states and 11486 transitions. [2022-11-21 13:44:38,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 701 transitions, 4010 flow [2022-11-21 13:44:38,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 701 transitions, 3903 flow, removed 4 selfloop flow, removed 14 redundant places. [2022-11-21 13:44:38,205 INFO L231 Difference]: Finished difference. Result has 565 places, 629 transitions, 3052 flow [2022-11-21 13:44:38,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=2445, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=3052, PETRI_PLACES=565, PETRI_TRANSITIONS=629} [2022-11-21 13:44:38,207 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 67 predicate places. [2022-11-21 13:44:38,207 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 629 transitions, 3052 flow [2022-11-21 13:44:38,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 307.45) internal successors, (12298), 40 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:38,211 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:38,212 INFO L209 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:38,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:38,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:38,425 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:44:38,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1694031488, now seen corresponding path program 4 times [2022-11-21 13:44:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:38,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447613864] [2022-11-21 13:44:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2022-11-21 13:44:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:40,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447613864] [2022-11-21 13:44:40,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447613864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:40,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236552323] [2022-11-21 13:44:40,483 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 13:44:40,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:40,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:40,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:40,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 13:44:44,513 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 13:44:44,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:44:44,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-21 13:44:44,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2022-11-21 13:44:45,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2022-11-21 13:44:45,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236552323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:45,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:45,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2022-11-21 13:44:45,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055586367] [2022-11-21 13:44:45,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:45,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-21 13:44:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-21 13:44:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=610, Invalid=2252, Unknown=0, NotChecked=0, Total=2862 [2022-11-21 13:44:45,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 563 [2022-11-21 13:44:45,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 629 transitions, 3052 flow. Second operand has 54 states, 54 states have (on average 322.2962962962963) internal successors, (17404), 54 states have internal predecessors, (17404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:45,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:44:45,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 563 [2022-11-21 13:44:45,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:44:50,059 INFO L130 PetriNetUnfolder]: 804/2655 cut-off events. [2022-11-21 13:44:50,059 INFO L131 PetriNetUnfolder]: For 1799/1799 co-relation queries the response was YES. [2022-11-21 13:44:50,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5614 conditions, 2655 events. 804/2655 cut-off events. For 1799/1799 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 16054 event pairs, 440 based on Foata normal form. 4/1715 useless extension candidates. Maximal degree in co-relation 4241. Up to 1290 conditions per place. [2022-11-21 13:44:50,078 INFO L137 encePairwiseOnDemand]: 535/563 looper letters, 313 selfloop transitions, 135 changer transitions 0/729 dead transitions. [2022-11-21 13:44:50,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 729 transitions, 4504 flow [2022-11-21 13:44:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-21 13:44:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-21 13:44:50,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 13667 transitions. [2022-11-21 13:44:50,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5779835913050834 [2022-11-21 13:44:50,093 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 13667 transitions. [2022-11-21 13:44:50,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 13667 transitions. [2022-11-21 13:44:50,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:44:50,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 13667 transitions. [2022-11-21 13:44:50,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 325.4047619047619) internal successors, (13667), 42 states have internal predecessors, (13667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:50,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 563.0) internal successors, (24209), 43 states have internal predecessors, (24209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:50,140 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 563.0) internal successors, (24209), 43 states have internal predecessors, (24209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:50,140 INFO L175 Difference]: Start difference. First operand has 565 places, 629 transitions, 3052 flow. Second operand 42 states and 13667 transitions. [2022-11-21 13:44:50,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 729 transitions, 4504 flow [2022-11-21 13:44:50,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 729 transitions, 4329 flow, removed 0 selfloop flow, removed 19 redundant places. [2022-11-21 13:44:50,167 INFO L231 Difference]: Finished difference. Result has 590 places, 643 transitions, 3356 flow [2022-11-21 13:44:50,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=563, PETRI_DIFFERENCE_MINUEND_FLOW=2877, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=3356, PETRI_PLACES=590, PETRI_TRANSITIONS=643} [2022-11-21 13:44:50,169 INFO L288 CegarLoopForPetriNet]: 498 programPoint places, 92 predicate places. [2022-11-21 13:44:50,169 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 643 transitions, 3356 flow [2022-11-21 13:44:50,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 322.2962962962963) internal successors, (17404), 54 states have internal predecessors, (17404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:50,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:44:50,173 INFO L209 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:50,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:50,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6728712-7927-456b-8b2c-760d191daa5e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:50,386 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-21 13:44:50,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash 79466021, now seen corresponding path program 1 times [2022-11-21 13:44:50,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:50,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326259028] [2022-11-21 13:44:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:50,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat