./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:32:06,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:32:06,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:32:06,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:32:06,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:32:06,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:32:06,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:32:06,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:32:06,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:32:06,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:32:06,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:32:06,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:32:06,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:32:06,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:32:06,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:32:06,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:32:06,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:32:06,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:32:06,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:32:06,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:32:06,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:32:06,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:32:06,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:32:06,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:32:06,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:32:06,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:32:06,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:32:06,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:32:06,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:32:06,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:32:06,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:32:06,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:32:06,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:32:06,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:32:06,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:32:06,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:32:06,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:32:06,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:32:06,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:32:06,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:32:06,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:32:06,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:32:06,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:32:06,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:32:06,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:32:06,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:32:06,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:32:06,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:32:06,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:32:06,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:32:06,517 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:32:06,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:32:06,518 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:32:06,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:32:06,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:32:06,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:32:06,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:32:06,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:32:06,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:32:06,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:32:06,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:32:06,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:32:06,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:32:06,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:32:06,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:32:06,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:32:06,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:32:06,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:32:06,522 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:32:06,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:32:06,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:32:06,522 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_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2022-11-16 11:32:06,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:32:06,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:32:06,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:32:06,887 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:32:06,887 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:32:06,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2022-11-16 11:32:06,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/data/e553ba094/585e21efd77842ca89a58354477483f4/FLAGae9f8e9de [2022-11-16 11:32:07,592 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:32:07,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2022-11-16 11:32:07,609 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/data/e553ba094/585e21efd77842ca89a58354477483f4/FLAGae9f8e9de [2022-11-16 11:32:07,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/data/e553ba094/585e21efd77842ca89a58354477483f4 [2022-11-16 11:32:07,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:32:07,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:32:07,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:32:07,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:32:07,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:32:07,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:32:07" (1/1) ... [2022-11-16 11:32:07,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e84a29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:07, skipping insertion in model container [2022-11-16 11:32:07,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:32:07" (1/1) ... [2022-11-16 11:32:07,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:32:08,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:32:08,589 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2022-11-16 11:32:08,777 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2022-11-16 11:32:08,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:32:08,807 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:32:08,835 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2022-11-16 11:32:08,916 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2022-11-16 11:32:08,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:32:08,966 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:32:08,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08 WrapperNode [2022-11-16 11:32:08,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:32:08,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:32:08,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:32:08,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:32:08,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,116 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1696 [2022-11-16 11:32:09,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:32:09,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:32:09,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:32:09,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:32:09,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:32:09,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:32:09,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:32:09,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:32:09,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (1/1) ... [2022-11-16 11:32:09,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:32:09,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:09,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:32:09,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:32:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:32:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 11:32:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 11:32:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:32:09,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:32:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:32:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:32:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:32:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:32:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:32:09,444 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 11:32:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:32:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:32:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:32:09,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:32:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:32:09,747 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:32:09,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:32:11,911 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:32:11,930 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:32:11,930 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-16 11:32:11,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:32:11 BoogieIcfgContainer [2022-11-16 11:32:11,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:32:11,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:32:11,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:32:11,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:32:11,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:32:07" (1/3) ... [2022-11-16 11:32:11,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc85f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:32:11, skipping insertion in model container [2022-11-16 11:32:11,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:08" (2/3) ... [2022-11-16 11:32:11,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc85f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:32:11, skipping insertion in model container [2022-11-16 11:32:11,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:32:11" (3/3) ... [2022-11-16 11:32:11,947 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-3.i [2022-11-16 11:32:11,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:32:11,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 11:32:12,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:32:12,071 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;@3460dfcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:32:12,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 11:32:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 295 states have (on average 1.7152542372881356) internal successors, (506), 310 states have internal predecessors, (506), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 11:32:12,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:32:12,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:12,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:32:12,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1126968937, now seen corresponding path program 1 times [2022-11-16 11:32:12,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:12,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257222584] [2022-11-16 11:32:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:12,228 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:12,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608230998] [2022-11-16 11:32:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:12,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:12,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:12,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:32:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:12,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:32:12,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:12,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:12,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:12,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257222584] [2022-11-16 11:32:12,546 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:12,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608230998] [2022-11-16 11:32:12,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608230998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:12,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:12,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006692360] [2022-11-16 11:32:12,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:12,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:12,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:12,606 INFO L87 Difference]: Start difference. First operand has 319 states, 295 states have (on average 1.7152542372881356) internal successors, (506), 310 states have internal predecessors, (506), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:12,756 INFO L93 Difference]: Finished difference Result 884 states and 1492 transitions. [2022-11-16 11:32:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-16 11:32:12,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:12,772 INFO L225 Difference]: With dead ends: 884 [2022-11-16 11:32:12,772 INFO L226 Difference]: Without dead ends: 513 [2022-11-16 11:32:12,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:12,779 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 308 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:12,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 816 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-11-16 11:32:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 337. [2022-11-16 11:32:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 311 states have (on average 1.3440514469453375) internal successors, (418), 328 states have internal predecessors, (418), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:32:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 450 transitions. [2022-11-16 11:32:12,892 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 450 transitions. Word has length 6 [2022-11-16 11:32:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:12,892 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 450 transitions. [2022-11-16 11:32:12,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:12,894 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 450 transitions. [2022-11-16 11:32:12,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:32:12,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:12,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:32:12,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 11:32:13,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:13,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-11-16 11:32:13,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:13,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460767652] [2022-11-16 11:32:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:13,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:13,145 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:13,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985997729] [2022-11-16 11:32:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:13,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:13,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:13,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:13,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:32:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:13,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:13,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:13,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:13,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:13,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460767652] [2022-11-16 11:32:13,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:13,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985997729] [2022-11-16 11:32:13,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985997729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:13,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:13,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:32:13,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688215412] [2022-11-16 11:32:13,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:13,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:13,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:13,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:13,392 INFO L87 Difference]: Start difference. First operand 337 states and 450 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:13,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:13,481 INFO L93 Difference]: Finished difference Result 514 states and 676 transitions. [2022-11-16 11:32:13,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:13,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-16 11:32:13,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:13,486 INFO L225 Difference]: With dead ends: 514 [2022-11-16 11:32:13,486 INFO L226 Difference]: Without dead ends: 511 [2022-11-16 11:32:13,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:13,489 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 302 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:13,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 697 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:32:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-11-16 11:32:13,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 341. [2022-11-16 11:32:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 315 states have (on average 1.3365079365079364) internal successors, (421), 332 states have internal predecessors, (421), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:32:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 453 transitions. [2022-11-16 11:32:13,526 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 453 transitions. Word has length 6 [2022-11-16 11:32:13,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:13,529 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 453 transitions. [2022-11-16 11:32:13,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 453 transitions. [2022-11-16 11:32:13,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:32:13,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:13,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:13,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:13,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-16 11:32:13,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1509086869, now seen corresponding path program 1 times [2022-11-16 11:32:13,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:13,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882054663] [2022-11-16 11:32:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:13,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:14,057 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:14,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698805813] [2022-11-16 11:32:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:14,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:14,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:14,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:14,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:32:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:15,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:15,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:15,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:15,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882054663] [2022-11-16 11:32:15,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698805813] [2022-11-16 11:32:15,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698805813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:15,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:15,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:15,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866704983] [2022-11-16 11:32:15,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:15,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:15,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:15,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:15,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:15,457 INFO L87 Difference]: Start difference. First operand 341 states and 453 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:15,555 INFO L93 Difference]: Finished difference Result 697 states and 931 transitions. [2022-11-16 11:32:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:15,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) Word has length 103 [2022-11-16 11:32:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:15,558 INFO L225 Difference]: With dead ends: 697 [2022-11-16 11:32:15,558 INFO L226 Difference]: Without dead ends: 362 [2022-11-16 11:32:15,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:15,561 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 9 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:15,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 633 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-16 11:32:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2022-11-16 11:32:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 335 states have (on average 1.3164179104477611) internal successors, (441), 352 states have internal predecessors, (441), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:32:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 473 transitions. [2022-11-16 11:32:15,575 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 473 transitions. Word has length 103 [2022-11-16 11:32:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:15,576 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 473 transitions. [2022-11-16 11:32:15,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 473 transitions. [2022-11-16 11:32:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:32:15,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:15,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:15,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:15,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:15,790 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:15,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:15,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1749326615, now seen corresponding path program 1 times [2022-11-16 11:32:15,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:15,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184481778] [2022-11-16 11:32:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:15,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:16,089 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:16,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440304766] [2022-11-16 11:32:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:16,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:16,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:16,098 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:16,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:32:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:17,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2980 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:17,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:17,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:17,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184481778] [2022-11-16 11:32:17,510 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440304766] [2022-11-16 11:32:17,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440304766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:17,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:17,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699824739] [2022-11-16 11:32:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:17,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:17,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:17,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:17,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:17,513 INFO L87 Difference]: Start difference. First operand 361 states and 473 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:17,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:17,595 INFO L93 Difference]: Finished difference Result 737 states and 971 transitions. [2022-11-16 11:32:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:17,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) Word has length 103 [2022-11-16 11:32:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:17,598 INFO L225 Difference]: With dead ends: 737 [2022-11-16 11:32:17,598 INFO L226 Difference]: Without dead ends: 382 [2022-11-16 11:32:17,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:17,600 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 9 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:17,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 633 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-16 11:32:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2022-11-16 11:32:17,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 355 states have (on average 1.2985915492957747) internal successors, (461), 372 states have internal predecessors, (461), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:32:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 493 transitions. [2022-11-16 11:32:17,613 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 493 transitions. Word has length 103 [2022-11-16 11:32:17,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:17,613 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 493 transitions. [2022-11-16 11:32:17,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 493 transitions. [2022-11-16 11:32:17,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:32:17,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:17,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:17,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:17,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:17,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash 494656683, now seen corresponding path program 1 times [2022-11-16 11:32:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:17,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390777062] [2022-11-16 11:32:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:18,126 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:18,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97132481] [2022-11-16 11:32:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:18,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:18,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:18,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:18,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:32:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:19,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:19,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:19,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:19,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:19,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390777062] [2022-11-16 11:32:19,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:19,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97132481] [2022-11-16 11:32:19,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97132481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:19,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:19,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:32:19,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577121990] [2022-11-16 11:32:19,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:19,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:32:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:19,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:32:19,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:32:19,834 INFO L87 Difference]: Start difference. First operand 381 states and 493 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:19,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:19,923 INFO L93 Difference]: Finished difference Result 747 states and 971 transitions. [2022-11-16 11:32:19,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:32:19,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) Word has length 103 [2022-11-16 11:32:19,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:19,926 INFO L225 Difference]: With dead ends: 747 [2022-11-16 11:32:19,926 INFO L226 Difference]: Without dead ends: 372 [2022-11-16 11:32:19,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:19,928 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 310 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:19,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 665 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-11-16 11:32:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 367. [2022-11-16 11:32:19,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 341 states have (on average 1.2903225806451613) internal successors, (440), 358 states have internal predecessors, (440), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:32:19,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 472 transitions. [2022-11-16 11:32:19,946 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 472 transitions. Word has length 103 [2022-11-16 11:32:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:19,948 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 472 transitions. [2022-11-16 11:32:19,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 472 transitions. [2022-11-16 11:32:19,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:32:19,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:19,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:19,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:20,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:20,160 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:20,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash -419194439, now seen corresponding path program 1 times [2022-11-16 11:32:20,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:20,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968169743] [2022-11-16 11:32:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:20,403 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:20,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16364294] [2022-11-16 11:32:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:20,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:20,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:20,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:20,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:32:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:22,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:22,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:22,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:22,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:22,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:22,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968169743] [2022-11-16 11:32:22,179 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:22,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16364294] [2022-11-16 11:32:22,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16364294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:22,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:22,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:32:22,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989383367] [2022-11-16 11:32:22,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:22,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:32:22,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:22,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:32:22,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:32:22,181 INFO L87 Difference]: Start difference. First operand 367 states and 472 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:22,279 INFO L93 Difference]: Finished difference Result 806 states and 1035 transitions. [2022-11-16 11:32:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:32:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) Word has length 103 [2022-11-16 11:32:22,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:22,283 INFO L225 Difference]: With dead ends: 806 [2022-11-16 11:32:22,284 INFO L226 Difference]: Without dead ends: 445 [2022-11-16 11:32:22,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:22,292 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 303 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:22,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 899 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-16 11:32:22,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 353. [2022-11-16 11:32:22,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 327 states have (on average 1.2813455657492354) internal successors, (419), 344 states have internal predecessors, (419), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 11:32:22,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 451 transitions. [2022-11-16 11:32:22,313 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 451 transitions. Word has length 103 [2022-11-16 11:32:22,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:22,313 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 451 transitions. [2022-11-16 11:32:22,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 451 transitions. [2022-11-16 11:32:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:32:22,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:22,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:22,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:22,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:22,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:22,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1604741739, now seen corresponding path program 1 times [2022-11-16 11:32:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:22,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949233217] [2022-11-16 11:32:22,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:22,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:22,769 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:22,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862349935] [2022-11-16 11:32:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:22,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:22,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:22,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:22,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:32:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:24,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:24,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:24,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:24,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:24,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949233217] [2022-11-16 11:32:24,930 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:24,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862349935] [2022-11-16 11:32:24,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862349935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:24,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:24,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888394289] [2022-11-16 11:32:24,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:24,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:32:24,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:24,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:32:24,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:32:24,933 INFO L87 Difference]: Start difference. First operand 353 states and 451 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:25,033 INFO L93 Difference]: Finished difference Result 535 states and 669 transitions. [2022-11-16 11:32:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:32:25,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 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) Word has length 103 [2022-11-16 11:32:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:25,036 INFO L225 Difference]: With dead ends: 535 [2022-11-16 11:32:25,037 INFO L226 Difference]: Without dead ends: 534 [2022-11-16 11:32:25,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:25,038 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 193 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:25,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 966 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-16 11:32:25,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 530. [2022-11-16 11:32:25,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 498 states have (on average 1.248995983935743) internal successors, (622), 515 states have internal predecessors, (622), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-16 11:32:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 666 transitions. [2022-11-16 11:32:25,064 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 666 transitions. Word has length 103 [2022-11-16 11:32:25,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:25,065 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 666 transitions. [2022-11-16 11:32:25,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:25,065 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 666 transitions. [2022-11-16 11:32:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-16 11:32:25,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:25,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:25,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:25,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:25,272 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:25,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:25,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1792612892, now seen corresponding path program 1 times [2022-11-16 11:32:25,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:25,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068460473] [2022-11-16 11:32:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:25,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:25,588 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:25,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732753145] [2022-11-16 11:32:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:25,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:25,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:25,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:25,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 11:32:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:27,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:32:27,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:27,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:27,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:27,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:27,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068460473] [2022-11-16 11:32:27,878 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:27,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732753145] [2022-11-16 11:32:27,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732753145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:27,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:27,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:27,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701274022] [2022-11-16 11:32:27,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:27,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:32:27,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:32:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:32:27,880 INFO L87 Difference]: Start difference. First operand 530 states and 666 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:27,949 INFO L93 Difference]: Finished difference Result 530 states and 666 transitions. [2022-11-16 11:32:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:32:27,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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) Word has length 104 [2022-11-16 11:32:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:27,957 INFO L225 Difference]: With dead ends: 530 [2022-11-16 11:32:27,958 INFO L226 Difference]: Without dead ends: 528 [2022-11-16 11:32:27,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:27,959 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 196 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:27,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 640 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:32:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-16 11:32:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 527. [2022-11-16 11:32:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 497 states have (on average 1.2454728370221329) internal successors, (619), 512 states have internal predecessors, (619), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-16 11:32:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 663 transitions. [2022-11-16 11:32:27,983 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 663 transitions. Word has length 104 [2022-11-16 11:32:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:27,985 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 663 transitions. [2022-11-16 11:32:27,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:27,985 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 663 transitions. [2022-11-16 11:32:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-16 11:32:27,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:27,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:28,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:28,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:28,203 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:28,203 INFO L85 PathProgramCache]: Analyzing trace with hash 969929611, now seen corresponding path program 1 times [2022-11-16 11:32:28,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:28,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176420224] [2022-11-16 11:32:28,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:28,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:28,401 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:28,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90834026] [2022-11-16 11:32:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:28,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:28,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:28,407 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:28,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 11:32:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:30,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:32:30,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:31,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:31,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:31,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176420224] [2022-11-16 11:32:31,010 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:31,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90834026] [2022-11-16 11:32:31,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90834026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:31,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:31,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:31,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62035710] [2022-11-16 11:32:31,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:31,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:31,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:31,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:31,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:31,012 INFO L87 Difference]: Start difference. First operand 527 states and 663 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:31,114 INFO L93 Difference]: Finished difference Result 987 states and 1267 transitions. [2022-11-16 11:32:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:31,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) Word has length 108 [2022-11-16 11:32:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:31,121 INFO L225 Difference]: With dead ends: 987 [2022-11-16 11:32:31,121 INFO L226 Difference]: Without dead ends: 605 [2022-11-16 11:32:31,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:31,127 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 135 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:31,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 691 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:32:31,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-16 11:32:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 601. [2022-11-16 11:32:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 561 states have (on average 1.2655971479500892) internal successors, (710), 586 states have internal predecessors, (710), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-16 11:32:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 774 transitions. [2022-11-16 11:32:31,157 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 774 transitions. Word has length 108 [2022-11-16 11:32:31,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:31,158 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 774 transitions. [2022-11-16 11:32:31,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:31,158 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 774 transitions. [2022-11-16 11:32:31,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-16 11:32:31,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:31,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:31,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:31,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:31,375 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:31,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1476157955, now seen corresponding path program 1 times [2022-11-16 11:32:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:31,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961435805] [2022-11-16 11:32:31,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:31,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:31,534 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:31,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437698248] [2022-11-16 11:32:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:31,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:31,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:31,536 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:31,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 11:32:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:33,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:32:33,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:32:33,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961435805] [2022-11-16 11:32:33,802 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:32:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437698248] [2022-11-16 11:32:33,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437698248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:33,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:33,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:32:33,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596889940] [2022-11-16 11:32:33,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:33,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:32:33,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:32:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:33,807 INFO L87 Difference]: Start difference. First operand 601 states and 774 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:32:33,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:33,876 INFO L93 Difference]: Finished difference Result 1142 states and 1480 transitions. [2022-11-16 11:32:33,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:32:33,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 123 [2022-11-16 11:32:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:33,881 INFO L225 Difference]: With dead ends: 1142 [2022-11-16 11:32:33,881 INFO L226 Difference]: Without dead ends: 599 [2022-11-16 11:32:33,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:32:33,883 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 15 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:33,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 639 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:32:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-16 11:32:33,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-16 11:32:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 559 states have (on average 1.2647584973166368) internal successors, (707), 584 states have internal predecessors, (707), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-16 11:32:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 771 transitions. [2022-11-16 11:32:33,911 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 771 transitions. Word has length 123 [2022-11-16 11:32:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:33,912 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 771 transitions. [2022-11-16 11:32:33,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:32:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 771 transitions. [2022-11-16 11:32:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 11:32:33,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:33,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:33,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:32:34,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:32:34,132 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:32:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash 455737666, now seen corresponding path program 1 times [2022-11-16 11:32:34,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:34,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789587300] [2022-11-16 11:32:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:34,230 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:32:34,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804929293] [2022-11-16 11:32:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:34,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:34,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:34,232 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:34,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 11:33:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:00,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:33:00,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:33:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 11:33:00,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:33:00,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:00,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789587300] [2022-11-16 11:33:00,845 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:33:00,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804929293] [2022-11-16 11:33:00,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804929293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:00,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:00,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:33:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966706519] [2022-11-16 11:33:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:00,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:33:00,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:00,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:33:00,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:33:00,848 INFO L87 Difference]: Start difference. First operand 599 states and 771 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 11:33:00,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:00,924 INFO L93 Difference]: Finished difference Result 1149 states and 1499 transitions. [2022-11-16 11:33:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:33:00,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 138 [2022-11-16 11:33:00,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:00,928 INFO L225 Difference]: With dead ends: 1149 [2022-11-16 11:33:00,928 INFO L226 Difference]: Without dead ends: 602 [2022-11-16 11:33:00,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:33:00,930 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 2 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:00,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 965 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:33:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-16 11:33:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2022-11-16 11:33:00,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 561 states have (on average 1.2655971479500892) internal successors, (710), 587 states have internal predecessors, (710), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-11-16 11:33:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 778 transitions. [2022-11-16 11:33:00,970 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 778 transitions. Word has length 138 [2022-11-16 11:33:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:00,970 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 778 transitions. [2022-11-16 11:33:00,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 11:33:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 778 transitions. [2022-11-16 11:33:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-16 11:33:00,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:00,974 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:01,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:33:01,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 11:33:01,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:33:01,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash -470753026, now seen corresponding path program 1 times [2022-11-16 11:33:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:01,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496162031] [2022-11-16 11:33:01,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:01,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:01,329 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:33:01,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075106000] [2022-11-16 11:33:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:01,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:33:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:33:01,332 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:33:01,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d897625-ca7c-4db7-a210-4d045281fb41/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process