./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro --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 80b250f44ccc89442200d93f4bf6653c7aad36a18be4f80bda8f239187e0714d --- 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-8393723 [2022-11-18 20:23:38,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:38,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:38,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:38,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:38,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:38,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:38,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:38,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:38,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:39,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:39,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:39,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:39,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:39,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:39,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:39,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:39,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:39,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:39,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:39,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:39,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:39,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:39,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:39,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:39,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:39,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:39,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:39,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:39,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:39,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:39,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:39,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:39,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:39,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:39,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:39,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:39,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:39,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:39,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:39,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:39,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:23:39,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:39,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:39,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:39,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:39,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:39,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:39,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:39,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:39,071 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:39,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:39,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:23:39,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:23:39,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:39,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:23:39,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:39,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:23:39,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:39,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:23:39,075 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:23:39,075 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:23:39,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:23:39,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:39,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:23:39,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:39,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:39,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:39,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:39,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:39,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:39,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:23:39,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:23:39,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:23:39,080 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:23:39,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:23:39,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:23:39,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80b250f44ccc89442200d93f4bf6653c7aad36a18be4f80bda8f239187e0714d [2022-11-18 20:23:39,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:39,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:39,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:39,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:39,467 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:39,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2022-11-18 20:23:39,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/data/4d8ad3b35/9f725c1f42674cf09027eeabbe2a820b/FLAGfe34e418a [2022-11-18 20:23:40,067 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:40,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2022-11-18 20:23:40,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/data/4d8ad3b35/9f725c1f42674cf09027eeabbe2a820b/FLAGfe34e418a [2022-11-18 20:23:40,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/data/4d8ad3b35/9f725c1f42674cf09027eeabbe2a820b [2022-11-18 20:23:40,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:40,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:40,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:40,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:40,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:40,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787ed920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40, skipping insertion in model container [2022-11-18 20:23:40,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:40,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:40,684 WARN L234 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_8cac1591-09e4-4c02-88a8-06fdcaed072f/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c[454,467] [2022-11-18 20:23:40,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:40,696 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:40,713 WARN L234 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_8cac1591-09e4-4c02-88a8-06fdcaed072f/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c[454,467] [2022-11-18 20:23:40,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:40,729 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:40,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40 WrapperNode [2022-11-18 20:23:40,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:40,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:40,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:40,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:40,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,771 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-18 20:23:40,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:40,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:40,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:40,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:40,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,795 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:40,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:40,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:40,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:40,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (1/1) ... [2022-11-18 20:23:40,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:40,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:40,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:40,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:23:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:40,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:40,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:23:40,890 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-18 20:23:40,890 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-18 20:23:40,960 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:40,962 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:41,106 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:23:41,114 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:23:41,115 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:23:41,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:41 BoogieIcfgContainer [2022-11-18 20:23:41,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:23:41,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:23:41,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:23:41,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:23:41,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:40" (1/3) ... [2022-11-18 20:23:41,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b20d54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:41, skipping insertion in model container [2022-11-18 20:23:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:40" (2/3) ... [2022-11-18 20:23:41,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b20d54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:41, skipping insertion in model container [2022-11-18 20:23:41,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:41" (3/3) ... [2022-11-18 20:23:41,150 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i20_o20-2.c [2022-11-18 20:23:41,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:23:41,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:23:41,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:23:41,299 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;@718b83f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:23:41,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:23:41,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:23:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:23:41,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:41,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:23:41,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:41,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:41,323 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-11-18 20:23:41,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:41,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073595507] [2022-11-18 20:23:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:41,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:41,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073595507] [2022-11-18 20:23:41,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073595507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:41,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:41,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:41,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685380613] [2022-11-18 20:23:41,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:41,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:23:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:41,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:23:41,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:41,687 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:41,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:41,828 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-11-18 20:23:41,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:23:41,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:23:41,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:41,842 INFO L225 Difference]: With dead ends: 26 [2022-11-18 20:23:41,842 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:23:41,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:41,867 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:41,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:23:41,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:23:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:23:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-18 20:23:41,927 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2022-11-18 20:23:41,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:41,928 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-18 20:23:41,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-18 20:23:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:23:41,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:41,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:41,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:23:41,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:41,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:41,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1829163585, now seen corresponding path program 1 times [2022-11-18 20:23:41,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:41,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834738913] [2022-11-18 20:23:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:41,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:42,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:42,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834738913] [2022-11-18 20:23:42,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834738913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:42,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:42,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:42,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894768070] [2022-11-18 20:23:42,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:42,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:23:42,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:23:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:42,099 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:42,195 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-11-18 20:23:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:23:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:23:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:42,204 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:23:42,204 INFO L226 Difference]: Without dead ends: 26 [2022-11-18 20:23:42,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:42,206 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:42,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-18 20:23:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-18 20:23:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:23:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-18 20:23:42,233 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-11-18 20:23:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:42,234 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-18 20:23:42,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:42,237 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-18 20:23:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:23:42,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:42,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:42,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:23:42,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:42,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-11-18 20:23:42,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:42,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826533362] [2022-11-18 20:23:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:42,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:42,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826533362] [2022-11-18 20:23:42,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826533362] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:42,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058361878] [2022-11-18 20:23:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:42,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:42,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:42,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:42,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:23:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:42,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:23:42,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:42,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:42,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058361878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:42,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:42,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 20:23:42,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536484314] [2022-11-18 20:23:42,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:42,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:23:42,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:42,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:23:42,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:23:42,702 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:42,907 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-11-18 20:23:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:42,908 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:23:42,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:42,911 INFO L225 Difference]: With dead ends: 74 [2022-11-18 20:23:42,911 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 20:23:42,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:23:42,913 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:42,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 89 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:42,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 20:23:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-11-18 20:23:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 20:23:42,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-11-18 20:23:42,928 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-11-18 20:23:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:42,928 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-11-18 20:23:42,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-11-18 20:23:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:23:42,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:42,942 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:42,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:23:43,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:43,148 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:43,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-11-18 20:23:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:43,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335115331] [2022-11-18 20:23:43,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:43,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:23:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:23:43,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:43,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335115331] [2022-11-18 20:23:43,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335115331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:43,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:43,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:23:43,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540330519] [2022-11-18 20:23:43,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:43,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:23:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:43,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:23:43,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:23:43,319 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:23:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:43,350 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-11-18 20:23:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:23:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-18 20:23:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:43,354 INFO L225 Difference]: With dead ends: 74 [2022-11-18 20:23:43,355 INFO L226 Difference]: Without dead ends: 72 [2022-11-18 20:23:43,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:23:43,357 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:43,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-18 20:23:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-18 20:23:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-18 20:23:43,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-11-18 20:23:43,381 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-11-18 20:23:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:43,382 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-11-18 20:23:43,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:23:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-11-18 20:23:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:23:43,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:43,384 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:43,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:23:43,384 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:43,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:43,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-11-18 20:23:43,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:43,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064849551] [2022-11-18 20:23:43,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:43,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:23:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:23:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:43,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064849551] [2022-11-18 20:23:43,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064849551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:43,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876669942] [2022-11-18 20:23:43,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:43,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:43,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:43,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:43,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:23:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:23:43,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:23:43,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:23:44,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876669942] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:44,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:44,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-11-18 20:23:44,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095372749] [2022-11-18 20:23:44,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:44,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:23:44,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:44,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:23:44,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:23:44,167 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-18 20:23:44,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:44,493 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-11-18 20:23:44,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:23:44,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-11-18 20:23:44,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:44,499 INFO L225 Difference]: With dead ends: 101 [2022-11-18 20:23:44,499 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:23:44,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-11-18 20:23:44,501 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 115 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:44,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 91 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:23:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-11-18 20:23:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 20:23:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-11-18 20:23:44,531 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-11-18 20:23:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:44,531 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-11-18 20:23:44,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-18 20:23:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-11-18 20:23:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:23:44,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:44,535 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-18 20:23:44,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:44,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:44,736 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:44,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:44,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-11-18 20:23:44,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:44,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981743432] [2022-11-18 20:23:44,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:44,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:45,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:45,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981743432] [2022-11-18 20:23:45,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981743432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:45,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567644745] [2022-11-18 20:23:45,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:45,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:45,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:45,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:23:45,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:23:45,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:45,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:23:45,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:45,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:45,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567644745] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:45,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:45,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 20:23:45,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166051792] [2022-11-18 20:23:45,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:45,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:23:45,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:23:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:23:45,380 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:45,930 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-11-18 20:23:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:23:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-18 20:23:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:45,933 INFO L225 Difference]: With dead ends: 220 [2022-11-18 20:23:45,933 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 20:23:45,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 20:23:45,935 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 304 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:45,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:23:45,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 20:23:45,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-11-18 20:23:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-18 20:23:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-11-18 20:23:45,952 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-11-18 20:23:45,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:45,953 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-11-18 20:23:45,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-11-18 20:23:45,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 20:23:45,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:45,955 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:45,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:46,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:46,161 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:46,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-11-18 20:23:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:46,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929153802] [2022-11-18 20:23:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:46,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 20:23:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 20:23:46,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:46,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929153802] [2022-11-18 20:23:46,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929153802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:46,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:46,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:46,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180947861] [2022-11-18 20:23:46,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:46,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:46,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:46,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:46,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:46,241 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:23:46,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:46,256 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-11-18 20:23:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:46,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-18 20:23:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:46,260 INFO L225 Difference]: With dead ends: 177 [2022-11-18 20:23:46,260 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 20:23:46,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:46,262 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:46,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:23:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 20:23:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-18 20:23:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-18 20:23:46,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-11-18 20:23:46,299 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-11-18 20:23:46,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:46,301 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-11-18 20:23:46,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:23:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-11-18 20:23:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:23:46,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:46,304 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:23:46,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:23:46,304 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:46,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-11-18 20:23:46,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342648466] [2022-11-18 20:23:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:46,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 20:23:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:23:46,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:46,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342648466] [2022-11-18 20:23:46,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342648466] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:46,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822789013] [2022-11-18 20:23:46,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:46,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:46,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:46,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:46,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:23:46,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:23:46,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:46,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:23:46,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:23:46,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:23:47,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822789013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:47,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:47,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 26 [2022-11-18 20:23:47,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657784902] [2022-11-18 20:23:47,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:47,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 20:23:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 20:23:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-11-18 20:23:47,461 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-18 20:23:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:47,804 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-11-18 20:23:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:23:47,804 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-11-18 20:23:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:47,811 INFO L225 Difference]: With dead ends: 224 [2022-11-18 20:23:47,811 INFO L226 Difference]: Without dead ends: 157 [2022-11-18 20:23:47,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 20:23:47,815 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 179 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:47,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 315 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:23:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-18 20:23:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-11-18 20:23:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-11-18 20:23:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-11-18 20:23:47,839 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-11-18 20:23:47,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:47,839 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-11-18 20:23:47,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-18 20:23:47,840 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-11-18 20:23:47,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-18 20:23:47,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:47,845 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-18 20:23:47,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:48,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:48,052 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-11-18 20:23:48,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:48,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064370396] [2022-11-18 20:23:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:48,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:48,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:48,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064370396] [2022-11-18 20:23:48,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064370396] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:48,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017344561] [2022-11-18 20:23:48,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:48,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:48,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:48,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:48,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:23:48,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:23:48,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:48,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:23:48,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:48,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:49,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017344561] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:49,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:49,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 20:23:49,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246183561] [2022-11-18 20:23:49,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:49,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 20:23:49,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:49,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 20:23:49,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:23:49,665 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:51,138 INFO L93 Difference]: Finished difference Result 431 states and 464 transitions. [2022-11-18 20:23:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-18 20:23:51,139 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-18 20:23:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:51,145 INFO L225 Difference]: With dead ends: 431 [2022-11-18 20:23:51,145 INFO L226 Difference]: Without dead ends: 371 [2022-11-18 20:23:51,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1742, Invalid=4578, Unknown=0, NotChecked=0, Total=6320 [2022-11-18 20:23:51,157 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 718 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:51,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 535 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:23:51,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-18 20:23:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2022-11-18 20:23:51,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 276 states have (on average 1.1268115942028984) internal successors, (311), 275 states have internal predecessors, (311), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2022-11-18 20:23:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 385 transitions. [2022-11-18 20:23:51,215 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 385 transitions. Word has length 57 [2022-11-18 20:23:51,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:51,218 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 385 transitions. [2022-11-18 20:23:51,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,218 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 385 transitions. [2022-11-18 20:23:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-18 20:23:51,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:51,231 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:23:51,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:51,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:23:51,439 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:51,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash 292034471, now seen corresponding path program 3 times [2022-11-18 20:23:51,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:51,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501299873] [2022-11-18 20:23:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:51,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 20:23:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:23:52,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:52,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501299873] [2022-11-18 20:23:52,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501299873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:52,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274056895] [2022-11-18 20:23:52,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:52,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:52,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:52,072 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:52,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:23:52,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:23:52,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:52,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:23:52,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 20:23:52,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-18 20:23:52,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274056895] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:52,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:52,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 7, 7] total 38 [2022-11-18 20:23:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630731031] [2022-11-18 20:23:52,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:52,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-18 20:23:52,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:52,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-18 20:23:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1226, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 20:23:52,682 INFO L87 Difference]: Start difference. First operand 349 states and 385 transitions. Second operand has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-18 20:23:54,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:54,229 INFO L93 Difference]: Finished difference Result 702 states and 802 transitions. [2022-11-18 20:23:54,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-18 20:23:54,230 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-11-18 20:23:54,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:54,233 INFO L225 Difference]: With dead ends: 702 [2022-11-18 20:23:54,234 INFO L226 Difference]: Without dead ends: 647 [2022-11-18 20:23:54,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=742, Invalid=4660, Unknown=0, NotChecked=0, Total=5402 [2022-11-18 20:23:54,237 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 332 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:54,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 366 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:23:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-11-18 20:23:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 638. [2022-11-18 20:23:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 509 states have (on average 1.0667976424361494) internal successors, (543), 504 states have internal predecessors, (543), 24 states have call successors, (24), 23 states have call predecessors, (24), 103 states have return successors, (110), 110 states have call predecessors, (110), 23 states have call successors, (110) [2022-11-18 20:23:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 677 transitions. [2022-11-18 20:23:54,268 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 677 transitions. Word has length 74 [2022-11-18 20:23:54,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:54,269 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 677 transitions. [2022-11-18 20:23:54,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-18 20:23:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 677 transitions. [2022-11-18 20:23:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:23:54,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:54,272 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-18 20:23:54,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:54,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:23:54,478 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:54,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1383014436, now seen corresponding path program 4 times [2022-11-18 20:23:54,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:54,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549308430] [2022-11-18 20:23:54,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:54,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:23:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:54,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:55,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:23:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:55,414 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-18 20:23:55,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:55,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549308430] [2022-11-18 20:23:55,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549308430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:23:55,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670831185] [2022-11-18 20:23:55,415 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:23:55,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:55,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:55,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:23:55,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:23:55,512 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:23:55,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:55,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-18 20:23:55,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 354 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-18 20:23:55,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 420 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:23:58,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670831185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:58,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:23:58,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 29] total 46 [2022-11-18 20:23:58,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598913040] [2022-11-18 20:23:58,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:58,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-18 20:23:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:58,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-18 20:23:58,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=1677, Unknown=0, NotChecked=0, Total=2070 [2022-11-18 20:23:58,404 INFO L87 Difference]: Start difference. First operand 638 states and 677 transitions. Second operand has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-18 20:23:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:59,167 INFO L93 Difference]: Finished difference Result 741 states and 779 transitions. [2022-11-18 20:23:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 20:23:59,168 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2022-11-18 20:23:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:59,172 INFO L225 Difference]: With dead ends: 741 [2022-11-18 20:23:59,172 INFO L226 Difference]: Without dead ends: 477 [2022-11-18 20:23:59,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=919, Invalid=3371, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 20:23:59,177 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 355 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:59,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 737 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:23:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-18 20:23:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 435. [2022-11-18 20:23:59,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 348 states have (on average 1.0775862068965518) internal successors, (375), 343 states have internal predecessors, (375), 24 states have call successors, (24), 23 states have call predecessors, (24), 61 states have return successors, (68), 68 states have call predecessors, (68), 23 states have call successors, (68) [2022-11-18 20:23:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 467 transitions. [2022-11-18 20:23:59,213 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 467 transitions. Word has length 99 [2022-11-18 20:23:59,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:59,214 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 467 transitions. [2022-11-18 20:23:59,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 44 states have (on average 2.6363636363636362) internal successors, (116), 34 states have internal predecessors, (116), 22 states have call successors, (22), 13 states have call predecessors, (22), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-11-18 20:23:59,215 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 467 transitions. [2022-11-18 20:23:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-18 20:23:59,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:59,217 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-11-18 20:23:59,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:59,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:23:59,424 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:23:59,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:59,424 INFO L85 PathProgramCache]: Analyzing trace with hash 848460513, now seen corresponding path program 4 times [2022-11-18 20:23:59,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:59,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118552017] [2022-11-18 20:23:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:01,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:01,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118552017] [2022-11-18 20:24:01,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118552017] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:01,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840678676] [2022-11-18 20:24:01,118 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:24:01,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:01,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:01,120 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:01,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:24:01,232 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:24:01,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:24:01,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 20:24:01,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:01,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:24:03,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840678676] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:03,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:03,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-18 20:24:03,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037077151] [2022-11-18 20:24:03,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:03,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-18 20:24:03,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:03,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-18 20:24:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-11-18 20:24:03,983 INFO L87 Difference]: Start difference. First operand 435 states and 467 transitions. Second operand has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:04,999 INFO L93 Difference]: Finished difference Result 521 states and 544 transitions. [2022-11-18 20:24:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-18 20:24:05,000 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-18 20:24:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:05,003 INFO L225 Difference]: With dead ends: 521 [2022-11-18 20:24:05,003 INFO L226 Difference]: Without dead ends: 425 [2022-11-18 20:24:05,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2873 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4100, Invalid=9706, Unknown=0, NotChecked=0, Total=13806 [2022-11-18 20:24:05,008 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 759 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:05,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 726 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:24:05,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-11-18 20:24:05,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 405. [2022-11-18 20:24:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 325 states have (on average 1.0769230769230769) internal successors, (350), 319 states have internal predecessors, (350), 24 states have call successors, (24), 23 states have call predecessors, (24), 55 states have return successors, (62), 62 states have call predecessors, (62), 23 states have call successors, (62) [2022-11-18 20:24:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 436 transitions. [2022-11-18 20:24:05,032 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 436 transitions. Word has length 117 [2022-11-18 20:24:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:05,033 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 436 transitions. [2022-11-18 20:24:05,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.010752688172043) internal successors, (187), 50 states have internal predecessors, (187), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 436 transitions. [2022-11-18 20:24:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-18 20:24:05,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:05,038 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-18 20:24:05,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-18 20:24:05,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:24:05,245 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:24:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:05,246 INFO L85 PathProgramCache]: Analyzing trace with hash 18589604, now seen corresponding path program 5 times [2022-11-18 20:24:05,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:05,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005311185] [2022-11-18 20:24:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:05,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 20:24:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 20 proven. 99 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-11-18 20:24:05,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:05,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005311185] [2022-11-18 20:24:05,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005311185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:05,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702703939] [2022-11-18 20:24:05,882 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:24:05,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:05,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:05,883 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:05,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:24:06,061 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-11-18 20:24:06,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:24:06,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 20:24:06,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-18 20:24:06,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-18 20:24:07,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702703939] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:07,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:07,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-11-18 20:24:07,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202575898] [2022-11-18 20:24:07,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:07,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-18 20:24:07,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:07,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-18 20:24:07,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 20:24:07,817 INFO L87 Difference]: Start difference. First operand 405 states and 436 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:24:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:08,321 INFO L93 Difference]: Finished difference Result 922 states and 1068 transitions. [2022-11-18 20:24:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:24:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 139 [2022-11-18 20:24:08,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:08,327 INFO L225 Difference]: With dead ends: 922 [2022-11-18 20:24:08,327 INFO L226 Difference]: Without dead ends: 921 [2022-11-18 20:24:08,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-11-18 20:24:08,330 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 78 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:08,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 78 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:24:08,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-18 20:24:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-11-18 20:24:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 741 states have (on average 1.0337381916329285) internal successors, (766), 727 states have internal predecessors, (766), 24 states have call successors, (24), 23 states have call predecessors, (24), 155 states have return successors, (170), 170 states have call predecessors, (170), 23 states have call successors, (170) [2022-11-18 20:24:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 960 transitions. [2022-11-18 20:24:08,412 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 960 transitions. Word has length 139 [2022-11-18 20:24:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:08,413 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 960 transitions. [2022-11-18 20:24:08,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:24:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 960 transitions. [2022-11-18 20:24:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-18 20:24:08,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:08,420 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-11-18 20:24:08,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:08,629 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:24:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -706464220, now seen corresponding path program 6 times [2022-11-18 20:24:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:08,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557149478] [2022-11-18 20:24:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:08,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:09,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:24:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:09,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 20 proven. 511 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-11-18 20:24:11,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:11,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557149478] [2022-11-18 20:24:11,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557149478] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:11,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707387967] [2022-11-18 20:24:11,381 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:24:11,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:11,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:11,384 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:11,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:24:11,586 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-11-18 20:24:11,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:24:11,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-18 20:24:11,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-18 20:24:11,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:24:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-18 20:24:25,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707387967] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:24:25,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:24:25,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2022-11-18 20:24:25,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750511529] [2022-11-18 20:24:25,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:24:25,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-18 20:24:25,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-18 20:24:25,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2022-11-18 20:24:25,113 INFO L87 Difference]: Start difference. First operand 921 states and 960 transitions. Second operand has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-18 20:24:26,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:24:26,349 INFO L93 Difference]: Finished difference Result 2639 states and 3035 transitions. [2022-11-18 20:24:26,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-18 20:24:26,350 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 179 [2022-11-18 20:24:26,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:24:26,358 INFO L225 Difference]: With dead ends: 2639 [2022-11-18 20:24:26,358 INFO L226 Difference]: Without dead ends: 1472 [2022-11-18 20:24:26,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3039, Invalid=12461, Unknown=0, NotChecked=0, Total=15500 [2022-11-18 20:24:26,365 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 158 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:24:26,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 90 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:24:26,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-11-18 20:24:26,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-11-18 20:24:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1185 states have (on average 1.019409282700422) internal successors, (1208), 1164 states have internal predecessors, (1208), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2022-11-18 20:24:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1516 transitions. [2022-11-18 20:24:26,418 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1516 transitions. Word has length 179 [2022-11-18 20:24:26,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:24:26,419 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 1516 transitions. [2022-11-18 20:24:26,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-18 20:24:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1516 transitions. [2022-11-18 20:24:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-18 20:24:26,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:24:26,434 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-11-18 20:24:26,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:24:26,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:26,641 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:24:26,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:26,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1980487428, now seen corresponding path program 7 times [2022-11-18 20:24:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:26,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175668252] [2022-11-18 20:24:26,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:26,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 20:24:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:29,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:32,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:36,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:37,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:38,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:24:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 54 proven. 2295 refuted. 0 times theorem prover too weak. 7209 trivial. 0 not checked. [2022-11-18 20:24:40,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:40,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175668252] [2022-11-18 20:24:40,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175668252] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:24:40,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355091844] [2022-11-18 20:24:40,845 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:24:40,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:24:40,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:24:40,846 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:24:40,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:24:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:41,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-18 20:24:41,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:24:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 3648 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-11-18 20:24:46,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:27:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 5418 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-11-18 20:27:17,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355091844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:27:17,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:27:17,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 83, 113] total 226 [2022-11-18 20:27:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815232312] [2022-11-18 20:27:17,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:27:17,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2022-11-18 20:27:17,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2022-11-18 20:27:17,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5220, Invalid=45630, Unknown=0, NotChecked=0, Total=50850 [2022-11-18 20:27:17,656 INFO L87 Difference]: Start difference. First operand 1472 states and 1516 transitions. Second operand has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-11-18 20:27:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:27:19,706 INFO L93 Difference]: Finished difference Result 1472 states and 1516 transitions. [2022-11-18 20:27:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-18 20:27:19,707 INFO L78 Accepts]: Start accepts. Automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) Word has length 429 [2022-11-18 20:27:19,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:27:19,708 INFO L225 Difference]: With dead ends: 1472 [2022-11-18 20:27:19,708 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:27:19,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 726 SyntacticMatches, 31 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33237 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=8088, Invalid=54162, Unknown=0, NotChecked=0, Total=62250 [2022-11-18 20:27:19,720 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:27:19,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 127 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-18 20:27:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:27:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:27:19,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:19,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:27:19,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 429 [2022-11-18 20:27:19,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:27:19,723 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:27:19,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-11-18 20:27:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:27:19,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:27:19,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-18 20:27:19,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-18 20:27:19,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-18 20:27:19,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-18 20:27:19,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:27:19,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:19,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:27:20,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:27:20,776 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:27:20,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:27:20,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (<= 20 |ULTIMATE.start_main_~input~0#1|) (<= |ULTIMATE.start_main_~input~0#1| 20)) [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,777 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-11-18 20:27:20,778 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-11-18 20:27:20,778 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-11-18 20:27:20,778 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,778 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,778 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,778 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-18 20:27:20,778 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,779 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or .cse0 (not (<= |id_#in~x| 20)) (not (<= 12 |id_#in~x|))) (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 2))) (or (not (<= 10 |id_#in~x|)) (not (<= |id_#in~x| 10)) (and (<= id_~x 10) (<= 10 id_~x))) (or (not (<= 3 |id_#in~x|)) (and (<= 3 id_~x) (<= id_~x 3)) (not (<= |id_#in~x| 3))) (or (not (<= 5 |id_#in~x|)) (not (<= |id_#in~x| 5)) (and (<= 5 id_~x) (<= id_~x 5))) (or .cse0 (not (<= 11 |id_#in~x|)) (not (<= |id_#in~x| 11))) (or (not (<= 8 |id_#in~x|)) (not (<= |id_#in~x| 8)) (and (<= id_~x 8) (<= 8 id_~x))) (or .cse0 (not (<= 4 |id_#in~x|)) (not (<= |id_#in~x| 4))) (or .cse0 (not (<= |id_#in~x| 6)) (not (<= 6 |id_#in~x|))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))) (or (not (<= |id_#in~x| 7)) .cse0 (not (<= 7 |id_#in~x|))) (or (not (<= |id_#in~x| 9)) (not (<= 9 |id_#in~x|)) (and (<= id_~x 9) (<= 9 id_~x))))) [2022-11-18 20:27:20,779 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,779 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,779 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-11-18 20:27:20,782 INFO L444 BasicCegarLoop]: Path program histogram: [7, 4, 1, 1, 1, 1] [2022-11-18 20:27:20,784 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:27:20,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:27:20 BoogieIcfgContainer [2022-11-18 20:27:20,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:27:20,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:27:20,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:27:20,789 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:27:20,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:41" (3/4) ... [2022-11-18 20:27:20,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:27:20,800 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-18 20:27:20,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:27:20,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:27:20,804 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:27:20,804 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:27:20,831 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:27:20,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:27:20,831 INFO L158 Benchmark]: Toolchain (without parser) took 220378.21ms. Allocated memory was 155.2MB in the beginning and 931.1MB in the end (delta: 775.9MB). Free memory was 120.2MB in the beginning and 405.7MB in the end (delta: -285.5MB). Peak memory consumption was 490.8MB. Max. memory is 16.1GB. [2022-11-18 20:27:20,832 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:27:20,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.46ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 131.1MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:27:20,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.65ms. Allocated memory is still 155.2MB. Free memory was 131.1MB in the beginning and 129.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:27:20,833 INFO L158 Benchmark]: Boogie Preprocessor took 24.61ms. Allocated memory is still 155.2MB. Free memory was 129.8MB in the beginning and 129.0MB in the end (delta: 727.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:27:20,833 INFO L158 Benchmark]: RCFGBuilder took 320.97ms. Allocated memory is still 155.2MB. Free memory was 129.0MB in the beginning and 119.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:27:20,833 INFO L158 Benchmark]: TraceAbstraction took 219663.54ms. Allocated memory was 155.2MB in the beginning and 931.1MB in the end (delta: 775.9MB). Free memory was 118.6MB in the beginning and 407.8MB in the end (delta: -289.3MB). Peak memory consumption was 489.2MB. Max. memory is 16.1GB. [2022-11-18 20:27:20,834 INFO L158 Benchmark]: Witness Printer took 41.98ms. Allocated memory is still 931.1MB. Free memory was 407.8MB in the beginning and 405.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:27:20,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.46ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 131.1MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.65ms. Allocated memory is still 155.2MB. Free memory was 131.1MB in the beginning and 129.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.61ms. Allocated memory is still 155.2MB. Free memory was 129.8MB in the beginning and 129.0MB in the end (delta: 727.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.97ms. Allocated memory is still 155.2MB. Free memory was 129.0MB in the beginning and 119.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 219663.54ms. Allocated memory was 155.2MB in the beginning and 931.1MB in the end (delta: 775.9MB). Free memory was 118.6MB in the beginning and 407.8MB in the end (delta: -289.3MB). Peak memory consumption was 489.2MB. Max. memory is 16.1GB. * Witness Printer took 41.98ms. Allocated memory is still 931.1MB. Free memory was 407.8MB in the beginning and 405.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 219.5s, OverallIterations: 15, TraceHistogramMax: 55, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3338 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3263 mSDsluCounter, 3505 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3062 mSDsCounter, 826 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6050 IncrementalHoareTripleChecker+Invalid, 6876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 826 mSolverCounterUnsat, 443 mSDtfsCounter, 6050 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3070 GetRequests, 2146 SyntacticMatches, 43 SemanticMatches, 881 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48204 ImplicationChecksByTransitivity, 25.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1472occurred in iteration=14, InterpolantAutomatonStates: 429, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 152 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 49 PreInvPairs, 49 NumberOfFragments, 182 HoareAnnotationTreeSize, 49 FomulaSimplifications, 650 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1172 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 203.0s InterpolantComputationTime, 2474 NumberOfCodeBlocks, 2429 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 3638 ConstructedInterpolants, 0 QuantifiedInterpolants, 9636 SizeOfPredicates, 118 NumberOfNonLiveVariables, 2362 ConjunctsInSsa, 305 ConjunctsInUnsatCore, 37 InterpolantComputations, 4 PerfectInterpolantSequences, 24204/43739 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:27:20,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cac1591-09e4-4c02-88a8-06fdcaed072f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE