./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:03:28,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:03:28,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:03:28,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:03:28,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:03:28,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:03:28,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:03:28,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:03:28,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:03:28,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:03:28,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:03:28,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:03:28,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:03:28,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:03:28,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:03:28,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:03:28,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:03:28,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:03:28,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:03:28,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:03:28,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:03:28,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:03:28,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:03:28,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:03:28,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:03:28,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:03:28,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:03:28,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:03:28,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:03:28,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:03:28,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:03:28,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:03:28,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:03:28,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:03:28,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:03:28,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:03:28,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:03:28,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:03:28,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:03:28,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:03:28,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:03:28,859 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:03:28,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:03:28,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:03:28,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:03:28,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:03:28,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:03:28,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:03:28,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:03:28,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:03:28,908 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:03:28,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:03:28,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:03:28,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:03:28,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:03:28,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:03:28,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:03:28,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:03:28,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:03:28,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:03:28,912 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:03:28,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:03:28,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:03:28,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:03:28,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:03:28,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:03:28,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:03:28,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:03:28,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:03:28,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:03:28,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:03:28,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:03:28,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:03:28,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:03:28,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:03:28,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:03:28,917 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:03:28,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:03:28,917 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2022-11-23 03:03:29,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:03:29,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:03:29,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:03:29,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:03:29,238 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:03:29,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-23 03:03:32,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:03:32,557 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:03:32,558 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-23 03:03:32,566 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/data/a3666dd9f/14dfe4ef319a4237936df7f7908e8f76/FLAG279cee0b4 [2022-11-23 03:03:32,582 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/data/a3666dd9f/14dfe4ef319a4237936df7f7908e8f76 [2022-11-23 03:03:32,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:03:32,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:03:32,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:03:32,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:03:32,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:03:32,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:32" (1/1) ... [2022-11-23 03:03:32,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45da43a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:32, skipping insertion in model container [2022-11-23 03:03:32,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:32" (1/1) ... [2022-11-23 03:03:32,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:03:32,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:03:32,950 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_8f58ae12-c5b4-4c34-8523-67a93559fdee/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-23 03:03:32,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:03:32,992 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:03:33,051 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_8f58ae12-c5b4-4c34-8523-67a93559fdee/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-23 03:03:33,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:03:33,092 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:03:33,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33 WrapperNode [2022-11-23 03:03:33,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:03:33,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:03:33,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:03:33,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:03:33,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,181 INFO L138 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 421 [2022-11-23 03:03:33,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:03:33,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:03:33,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:03:33,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:03:33,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,235 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:03:33,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:03:33,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:03:33,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:03:33,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (1/1) ... [2022-11-23 03:03:33,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:03:33,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:03:33,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:03:33,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:03:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:03:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:03:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:03:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:03:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:03:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 03:03:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 03:03:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 03:03:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 03:03:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 03:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 03:03:33,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 03:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 03:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 03:03:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:03:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:03:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:03:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:03:33,348 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:03:33,569 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:03:33,584 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:03:34,371 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:03:34,738 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:03:34,738 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-23 03:03:34,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:34 BoogieIcfgContainer [2022-11-23 03:03:34,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:03:34,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:03:34,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:03:34,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:03:34,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:03:32" (1/3) ... [2022-11-23 03:03:34,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4727063e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:34, skipping insertion in model container [2022-11-23 03:03:34,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:33" (2/3) ... [2022-11-23 03:03:34,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4727063e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:34, skipping insertion in model container [2022-11-23 03:03:34,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:34" (3/3) ... [2022-11-23 03:03:34,765 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2022-11-23 03:03:34,775 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:03:34,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:03:34,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-23 03:03:34,787 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:03:34,948 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 03:03:34,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 422 places, 449 transitions, 922 flow [2022-11-23 03:03:35,240 INFO L130 PetriNetUnfolder]: 37/446 cut-off events. [2022-11-23 03:03:35,241 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:03:35,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 446 events. 37/446 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 592 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 360. Up to 2 conditions per place. [2022-11-23 03:03:35,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 422 places, 449 transitions, 922 flow [2022-11-23 03:03:35,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 425 transitions, 865 flow [2022-11-23 03:03:35,269 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:03:35,302 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 399 places, 425 transitions, 865 flow [2022-11-23 03:03:35,310 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 399 places, 425 transitions, 865 flow [2022-11-23 03:03:35,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 399 places, 425 transitions, 865 flow [2022-11-23 03:03:35,398 INFO L130 PetriNetUnfolder]: 36/425 cut-off events. [2022-11-23 03:03:35,398 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:03:35,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 425 events. 36/425 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 536 event pairs, 0 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 360. Up to 2 conditions per place. [2022-11-23 03:03:35,410 INFO L119 LiptonReduction]: Number of co-enabled transitions 7238 [2022-11-23 03:03:58,840 INFO L134 LiptonReduction]: Checked pairs total: 9003 [2022-11-23 03:03:58,840 INFO L136 LiptonReduction]: Total number of compositions: 497 [2022-11-23 03:03:58,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:03:58,862 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;@429898bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:03:58,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-23 03:03:58,865 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-23 03:03:58,866 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:03:58,866 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:03:58,867 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:03:58,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:03:58,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:03:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash 62769, now seen corresponding path program 1 times [2022-11-23 03:03:58,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:03:58,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744002487] [2022-11-23 03:03:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:03:58,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:03:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:03:59,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:03:59,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:03:59,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744002487] [2022-11-23 03:03:59,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744002487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:03:59,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:03:59,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:03:59,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912951321] [2022-11-23 03:03:59,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:03:59,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:03:59,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:03:59,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:03:59,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:03:59,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 946 [2022-11-23 03:03:59,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 57 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:03:59,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:03:59,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 946 [2022-11-23 03:03:59,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:00,124 INFO L130 PetriNetUnfolder]: 1165/1771 cut-off events. [2022-11-23 03:04:00,125 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-23 03:04:00,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3735 conditions, 1771 events. 1165/1771 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 9364 event pairs, 890 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1680. Up to 875 conditions per place. [2022-11-23 03:04:00,139 INFO L137 encePairwiseOnDemand]: 924/946 looper letters, 77 selfloop transitions, 8 changer transitions 4/91 dead transitions. [2022-11-23 03:04:00,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 91 transitions, 390 flow [2022-11-23 03:04:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:04:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:04:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1276 transitions. [2022-11-23 03:04:00,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2022-11-23 03:04:00,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1276 transitions. [2022-11-23 03:04:00,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1276 transitions. [2022-11-23 03:04:00,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:00,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1276 transitions. [2022-11-23 03:04:00,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:00,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:00,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:00,189 INFO L175 Difference]: Start difference. First operand has 58 places, 57 transitions, 129 flow. Second operand 3 states and 1276 transitions. [2022-11-23 03:04:00,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 91 transitions, 390 flow [2022-11-23 03:04:00,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 372 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-23 03:04:00,202 INFO L231 Difference]: Finished difference. Result has 51 places, 56 transitions, 179 flow [2022-11-23 03:04:00,204 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=51, PETRI_TRANSITIONS=56} [2022-11-23 03:04:00,207 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, -7 predicate places. [2022-11-23 03:04:00,208 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 56 transitions, 179 flow [2022-11-23 03:04:00,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:00,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:00,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:04:00,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:04:00,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:00,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:00,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1950235, now seen corresponding path program 1 times [2022-11-23 03:04:00,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:00,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20549460] [2022-11-23 03:04:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:00,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:00,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:00,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20549460] [2022-11-23 03:04:00,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20549460] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:04:00,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698693719] [2022-11-23 03:04:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:00,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:00,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:04:00,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:04:00,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:04:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:00,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:04:00,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:04:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:00,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:04:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:00,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698693719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:04:00,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:04:00,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-23 03:04:00,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067710237] [2022-11-23 03:04:00,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:04:00,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:04:00,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:00,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:04:00,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:04:00,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 946 [2022-11-23 03:04:00,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 56 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 390.14285714285717) internal successors, (2731), 7 states have internal predecessors, (2731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:00,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:00,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 946 [2022-11-23 03:04:00,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:02,251 INFO L130 PetriNetUnfolder]: 2903/4386 cut-off events. [2022-11-23 03:04:02,252 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-23 03:04:02,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9214 conditions, 4386 events. 2903/4386 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 26463 event pairs, 2215 based on Foata normal form. 0/2311 useless extension candidates. Maximal degree in co-relation 7223. Up to 866 conditions per place. [2022-11-23 03:04:02,278 INFO L137 encePairwiseOnDemand]: 930/946 looper letters, 166 selfloop transitions, 45 changer transitions 0/213 dead transitions. [2022-11-23 03:04:02,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 213 transitions, 1019 flow [2022-11-23 03:04:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:04:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 03:04:02,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2946 transitions. [2022-11-23 03:04:02,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4448807006946542 [2022-11-23 03:04:02,287 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2946 transitions. [2022-11-23 03:04:02,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2946 transitions. [2022-11-23 03:04:02,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:02,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2946 transitions. [2022-11-23 03:04:02,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 420.85714285714283) internal successors, (2946), 7 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:02,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 946.0) internal successors, (7568), 8 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:02,312 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 946.0) internal successors, (7568), 8 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:02,312 INFO L175 Difference]: Start difference. First operand has 51 places, 56 transitions, 179 flow. Second operand 7 states and 2946 transitions. [2022-11-23 03:04:02,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 213 transitions, 1019 flow [2022-11-23 03:04:02,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 213 transitions, 985 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:04:02,319 INFO L231 Difference]: Finished difference. Result has 56 places, 89 transitions, 462 flow [2022-11-23 03:04:02,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=462, PETRI_PLACES=56, PETRI_TRANSITIONS=89} [2022-11-23 03:04:02,320 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2022-11-23 03:04:02,321 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 89 transitions, 462 flow [2022-11-23 03:04:02,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 390.14285714285717) internal successors, (2731), 7 states have internal predecessors, (2731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:02,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:02,323 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-11-23 03:04:02,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:04:02,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:02,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:02,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash 60461680, now seen corresponding path program 1 times [2022-11-23 03:04:02,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:02,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388926975] [2022-11-23 03:04:02,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:02,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:02,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:02,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388926975] [2022-11-23 03:04:02,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388926975] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:04:02,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052506826] [2022-11-23 03:04:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:02,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:04:02,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:04:02,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:04:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:02,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:04:02,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:04:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:02,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:04:02,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052506826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:04:02,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:04:02,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-23 03:04:02,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270612472] [2022-11-23 03:04:02,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:04:02,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:04:02,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:02,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:04:02,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:04:02,924 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 946 [2022-11-23 03:04:02,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 89 transitions, 462 flow. Second operand has 5 states, 5 states have (on average 389.8) internal successors, (1949), 5 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:02,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:02,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 946 [2022-11-23 03:04:02,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:03,959 INFO L130 PetriNetUnfolder]: 2891/4370 cut-off events. [2022-11-23 03:04:03,960 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-23 03:04:03,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9218 conditions, 4370 events. 2891/4370 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 26161 event pairs, 2215 based on Foata normal form. 4/2315 useless extension candidates. Maximal degree in co-relation 5494. Up to 2570 conditions per place. [2022-11-23 03:04:04,030 INFO L137 encePairwiseOnDemand]: 934/946 looper letters, 112 selfloop transitions, 21 changer transitions 0/135 dead transitions. [2022-11-23 03:04:04,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 135 transitions, 754 flow [2022-11-23 03:04:04,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:04:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:04:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2072 transitions. [2022-11-23 03:04:04,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43805496828752644 [2022-11-23 03:04:04,038 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2072 transitions. [2022-11-23 03:04:04,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2072 transitions. [2022-11-23 03:04:04,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:04,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2072 transitions. [2022-11-23 03:04:04,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 414.4) internal successors, (2072), 5 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:04,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 946.0) internal successors, (5676), 6 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:04,059 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 946.0) internal successors, (5676), 6 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:04,059 INFO L175 Difference]: Start difference. First operand has 56 places, 89 transitions, 462 flow. Second operand 5 states and 2072 transitions. [2022-11-23 03:04:04,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 135 transitions, 754 flow [2022-11-23 03:04:04,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 135 transitions, 713 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-11-23 03:04:04,064 INFO L231 Difference]: Finished difference. Result has 54 places, 73 transitions, 355 flow [2022-11-23 03:04:04,065 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=54, PETRI_TRANSITIONS=73} [2022-11-23 03:04:04,066 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2022-11-23 03:04:04,066 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 73 transitions, 355 flow [2022-11-23 03:04:04,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 389.8) internal successors, (1949), 5 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:04,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:04,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:04:04,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:04:04,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:04,274 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:04,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:04,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1874788884, now seen corresponding path program 1 times [2022-11-23 03:04:04,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:04,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140512103] [2022-11-23 03:04:04,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:04,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:04,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:04,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140512103] [2022-11-23 03:04:04,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140512103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:04:04,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:04:04,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:04:04,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701561265] [2022-11-23 03:04:04,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:04:04,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:04:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:04,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:04:04,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:04:04,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 946 [2022-11-23 03:04:04,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 73 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 399.6666666666667) internal successors, (1199), 3 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:04,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:04,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 946 [2022-11-23 03:04:04,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:06,124 INFO L130 PetriNetUnfolder]: 5766/8696 cut-off events. [2022-11-23 03:04:06,124 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-11-23 03:04:06,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18260 conditions, 8696 events. 5766/8696 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 876. Compared 58760 event pairs, 4430 based on Foata normal form. 0/4596 useless extension candidates. Maximal degree in co-relation 14381. Up to 4291 conditions per place. [2022-11-23 03:04:06,198 INFO L137 encePairwiseOnDemand]: 942/946 looper letters, 108 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-11-23 03:04:06,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 112 transitions, 714 flow [2022-11-23 03:04:06,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:04:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:04:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1270 transitions. [2022-11-23 03:04:06,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4474982381959126 [2022-11-23 03:04:06,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1270 transitions. [2022-11-23 03:04:06,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1270 transitions. [2022-11-23 03:04:06,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:06,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1270 transitions. [2022-11-23 03:04:06,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:06,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:06,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:06,225 INFO L175 Difference]: Start difference. First operand has 54 places, 73 transitions, 355 flow. Second operand 3 states and 1270 transitions. [2022-11-23 03:04:06,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 112 transitions, 714 flow [2022-11-23 03:04:06,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 112 transitions, 677 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:04:06,232 INFO L231 Difference]: Finished difference. Result has 54 places, 74 transitions, 340 flow [2022-11-23 03:04:06,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=54, PETRI_TRANSITIONS=74} [2022-11-23 03:04:06,235 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2022-11-23 03:04:06,236 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 74 transitions, 340 flow [2022-11-23 03:04:06,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.6666666666667) internal successors, (1199), 3 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:06,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:06,237 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-11-23 03:04:06,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:04:06,238 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2025726031, now seen corresponding path program 2 times [2022-11-23 03:04:06,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:06,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900183638] [2022-11-23 03:04:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:06,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:06,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900183638] [2022-11-23 03:04:06,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900183638] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:04:06,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367856865] [2022-11-23 03:04:06,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:04:06,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:06,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:04:06,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:04:06,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:04:06,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:04:06,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:04:06,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:04:06,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:04:06,648 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:04:06,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:04:06,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367856865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:04:06,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:04:06,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-23 03:04:06,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438351673] [2022-11-23 03:04:06,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:04:06,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:04:06,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:06,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:04:06,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:04:06,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 946 [2022-11-23 03:04:06,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 74 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:06,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:06,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 946 [2022-11-23 03:04:06,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:08,343 INFO L130 PetriNetUnfolder]: 5766/8695 cut-off events. [2022-11-23 03:04:08,343 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-23 03:04:08,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18263 conditions, 8695 events. 5766/8695 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 58782 event pairs, 4430 based on Foata normal form. 1/4606 useless extension candidates. Maximal degree in co-relation 14405. Up to 8530 conditions per place. [2022-11-23 03:04:08,392 INFO L137 encePairwiseOnDemand]: 943/946 looper letters, 65 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2022-11-23 03:04:08,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 472 flow [2022-11-23 03:04:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:04:08,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:04:08,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1222 transitions. [2022-11-23 03:04:08,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43058491895701195 [2022-11-23 03:04:08,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1222 transitions. [2022-11-23 03:04:08,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1222 transitions. [2022-11-23 03:04:08,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:08,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1222 transitions. [2022-11-23 03:04:08,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:08,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:08,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:08,408 INFO L175 Difference]: Start difference. First operand has 54 places, 74 transitions, 340 flow. Second operand 3 states and 1222 transitions. [2022-11-23 03:04:08,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 472 flow [2022-11-23 03:04:08,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:04:08,412 INFO L231 Difference]: Finished difference. Result has 54 places, 73 transitions, 340 flow [2022-11-23 03:04:08,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=54, PETRI_TRANSITIONS=73} [2022-11-23 03:04:08,413 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2022-11-23 03:04:08,413 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 73 transitions, 340 flow [2022-11-23 03:04:08,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:08,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:08,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:04:08,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:04:08,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:08,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:08,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:08,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2011081269, now seen corresponding path program 1 times [2022-11-23 03:04:08,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:08,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022842309] [2022-11-23 03:04:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:08,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:08,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:08,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022842309] [2022-11-23 03:04:08,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022842309] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:04:08,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287385773] [2022-11-23 03:04:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:08,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:08,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:04:08,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:04:08,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:04:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:08,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 03:04:08,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:04:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:08,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:04:08,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287385773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:04:08,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:04:08,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-11-23 03:04:08,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838073207] [2022-11-23 03:04:08,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:04:08,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:04:08,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:08,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:04:08,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:04:09,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 946 [2022-11-23 03:04:09,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 73 transitions, 340 flow. Second operand has 5 states, 5 states have (on average 380.2) internal successors, (1901), 5 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:09,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:09,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 946 [2022-11-23 03:04:09,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:11,447 INFO L130 PetriNetUnfolder]: 8191/12577 cut-off events. [2022-11-23 03:04:11,447 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-23 03:04:11,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26436 conditions, 12577 events. 8191/12577 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 91479 event pairs, 6645 based on Foata normal form. 5/6902 useless extension candidates. Maximal degree in co-relation 26379. Up to 8530 conditions per place. [2022-11-23 03:04:11,534 INFO L137 encePairwiseOnDemand]: 937/946 looper letters, 127 selfloop transitions, 15 changer transitions 0/144 dead transitions. [2022-11-23 03:04:11,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 144 transitions, 856 flow [2022-11-23 03:04:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:04:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 03:04:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2763 transitions. [2022-11-23 03:04:11,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4172455451525219 [2022-11-23 03:04:11,542 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2763 transitions. [2022-11-23 03:04:11,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2763 transitions. [2022-11-23 03:04:11,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:11,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2763 transitions. [2022-11-23 03:04:11,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 394.7142857142857) internal successors, (2763), 7 states have internal predecessors, (2763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:11,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 946.0) internal successors, (7568), 8 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:11,684 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 946.0) internal successors, (7568), 8 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:11,685 INFO L175 Difference]: Start difference. First operand has 54 places, 73 transitions, 340 flow. Second operand 7 states and 2763 transitions. [2022-11-23 03:04:11,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 144 transitions, 856 flow [2022-11-23 03:04:11,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 144 transitions, 844 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:04:11,689 INFO L231 Difference]: Finished difference. Result has 61 places, 81 transitions, 441 flow [2022-11-23 03:04:11,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=441, PETRI_PLACES=61, PETRI_TRANSITIONS=81} [2022-11-23 03:04:11,690 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2022-11-23 03:04:11,691 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 81 transitions, 441 flow [2022-11-23 03:04:11,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 380.2) internal successors, (1901), 5 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:11,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:11,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:04:11,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:04:11,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:11,898 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2081012466, now seen corresponding path program 1 times [2022-11-23 03:04:11,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:11,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416256626] [2022-11-23 03:04:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:11,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:11,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:11,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416256626] [2022-11-23 03:04:11,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416256626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:04:11,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:04:11,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:04:12,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358270225] [2022-11-23 03:04:12,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:04:12,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:04:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:04:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:04:12,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 946 [2022-11-23 03:04:12,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 81 transitions, 441 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:12,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:12,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 946 [2022-11-23 03:04:12,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:15,518 INFO L130 PetriNetUnfolder]: 16351/25045 cut-off events. [2022-11-23 03:04:15,518 INFO L131 PetriNetUnfolder]: For 4023/4023 co-relation queries the response was YES. [2022-11-23 03:04:15,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56204 conditions, 25045 events. 16351/25045 cut-off events. For 4023/4023 co-relation queries the response was YES. Maximal size of possible extension queue 2113. Compared 197974 event pairs, 13290 based on Foata normal form. 0/15525 useless extension candidates. Maximal degree in co-relation 33652. Up to 12338 conditions per place. [2022-11-23 03:04:15,684 INFO L137 encePairwiseOnDemand]: 942/946 looper letters, 117 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-23 03:04:15,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 121 transitions, 868 flow [2022-11-23 03:04:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:04:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:04:15,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1265 transitions. [2022-11-23 03:04:15,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44573643410852715 [2022-11-23 03:04:15,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1265 transitions. [2022-11-23 03:04:15,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1265 transitions. [2022-11-23 03:04:15,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:15,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1265 transitions. [2022-11-23 03:04:15,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:15,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:15,699 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:15,699 INFO L175 Difference]: Start difference. First operand has 61 places, 81 transitions, 441 flow. Second operand 3 states and 1265 transitions. [2022-11-23 03:04:15,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 121 transitions, 868 flow [2022-11-23 03:04:15,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 121 transitions, 862 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-23 03:04:15,737 INFO L231 Difference]: Finished difference. Result has 64 places, 82 transitions, 449 flow [2022-11-23 03:04:15,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=64, PETRI_TRANSITIONS=82} [2022-11-23 03:04:15,738 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2022-11-23 03:04:15,738 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 82 transitions, 449 flow [2022-11-23 03:04:15,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:15,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:15,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:04:15,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:04:15,740 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:15,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:15,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2028606936, now seen corresponding path program 1 times [2022-11-23 03:04:15,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:15,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455245923] [2022-11-23 03:04:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:15,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:04:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:15,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455245923] [2022-11-23 03:04:15,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455245923] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:04:15,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939003956] [2022-11-23 03:04:15,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:15,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:15,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:04:15,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:04:15,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:04:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:16,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 03:04:16,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:04:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:16,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:04:16,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:16,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939003956] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:04:16,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:04:16,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 12 [2022-11-23 03:04:16,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535502422] [2022-11-23 03:04:16,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:04:16,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:04:16,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:04:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:04:16,837 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 946 [2022-11-23 03:04:16,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 82 transitions, 449 flow. Second operand has 13 states, 13 states have (on average 370.46153846153845) internal successors, (4816), 13 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:16,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:16,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 946 [2022-11-23 03:04:16,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:04:25,109 INFO L130 PetriNetUnfolder]: 33591/50952 cut-off events. [2022-11-23 03:04:25,109 INFO L131 PetriNetUnfolder]: For 9922/9922 co-relation queries the response was YES. [2022-11-23 03:04:25,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116006 conditions, 50952 events. 33591/50952 cut-off events. For 9922/9922 co-relation queries the response was YES. Maximal size of possible extension queue 3809. Compared 425775 event pairs, 26580 based on Foata normal form. 5/31922 useless extension candidates. Maximal degree in co-relation 69482. Up to 14528 conditions per place. [2022-11-23 03:04:25,425 INFO L137 encePairwiseOnDemand]: 933/946 looper letters, 264 selfloop transitions, 32 changer transitions 0/298 dead transitions. [2022-11-23 03:04:25,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 298 transitions, 1869 flow [2022-11-23 03:04:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 03:04:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-23 03:04:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 8347 transitions. [2022-11-23 03:04:25,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4010666922929079 [2022-11-23 03:04:25,444 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 8347 transitions. [2022-11-23 03:04:25,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 8347 transitions. [2022-11-23 03:04:25,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:04:25,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 8347 transitions. [2022-11-23 03:04:25,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 379.40909090909093) internal successors, (8347), 22 states have internal predecessors, (8347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:25,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 946.0) internal successors, (21758), 23 states have internal predecessors, (21758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:25,500 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 946.0) internal successors, (21758), 23 states have internal predecessors, (21758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:25,501 INFO L175 Difference]: Start difference. First operand has 64 places, 82 transitions, 449 flow. Second operand 22 states and 8347 transitions. [2022-11-23 03:04:25,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 298 transitions, 1869 flow [2022-11-23 03:04:25,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 298 transitions, 1857 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:04:25,589 INFO L231 Difference]: Finished difference. Result has 90 places, 101 transitions, 687 flow [2022-11-23 03:04:25,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=687, PETRI_PLACES=90, PETRI_TRANSITIONS=101} [2022-11-23 03:04:25,593 INFO L288 CegarLoopForPetriNet]: 58 programPoint places, 32 predicate places. [2022-11-23 03:04:25,593 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 101 transitions, 687 flow [2022-11-23 03:04:25,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 370.46153846153845) internal successors, (4816), 13 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:25,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:04:25,596 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2022-11-23 03:04:25,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:04:25,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 03:04:25,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-23 03:04:25,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:04:25,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2026860705, now seen corresponding path program 1 times [2022-11-23 03:04:25,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:04:25,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057272402] [2022-11-23 03:04:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:25,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:04:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:25,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:04:25,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057272402] [2022-11-23 03:04:25,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057272402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:04:25,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791206850] [2022-11-23 03:04:25,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:04:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:04:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:04:25,973 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:04:25,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f58ae12-c5b4-4c34-8523-67a93559fdee/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:04:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:04:26,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:04:26,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:04:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:26,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:04:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:04:26,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791206850] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:04:26,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:04:26,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-23 03:04:26,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17179191] [2022-11-23 03:04:26,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:04:26,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:04:26,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:04:26,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:04:26,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:04:26,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 946 [2022-11-23 03:04:26,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 101 transitions, 687 flow. Second operand has 13 states, 13 states have (on average 390.15384615384613) internal successors, (5072), 13 states have internal predecessors, (5072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:04:26,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:04:26,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 946 [2022-11-23 03:04:26,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand