./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc --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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- 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-5e519f3 [2022-11-02 19:57:47,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:57:47,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:57:47,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:57:47,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:57:47,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:57:47,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:57:47,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:57:47,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:57:47,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:57:47,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:57:47,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:57:47,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:57:47,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:57:47,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:57:47,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:57:47,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:57:47,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:57:47,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:57:47,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:57:47,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:57:47,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:57:47,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:57:47,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:57:47,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:57:47,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:57:47,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:57:47,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:57:47,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:57:47,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:57:47,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:57:47,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:57:47,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:57:47,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:57:47,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:57:47,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:57:47,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:57:47,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:57:47,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:57:47,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:57:47,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:57:47,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 19:57:47,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:57:47,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:57:47,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:57:47,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:57:47,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:57:47,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:57:47,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:57:47,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:57:47,686 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:57:47,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:57:47,687 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:57:47,687 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:57:47,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:57:47,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:57:47,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:57:47,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:57:47,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:57:47,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:57:47,690 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 19:57:47,690 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:57:47,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:57:47,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:57:47,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:57:47,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:57:47,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:57:47,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:57:47,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:57:47,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:57:47,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:57:47,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:57:47,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:57:47,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:57:47,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:57:47,695 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_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2022-11-02 19:57:47,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:57:48,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:57:48,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:57:48,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:57:48,048 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:57:48,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2022-11-02 19:57:48,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/data/901204e47/395755b365bb4dd7b0dc245091f0486e/FLAG02492b6b8 [2022-11-02 19:57:48,985 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:57:48,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2022-11-02 19:57:49,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/data/901204e47/395755b365bb4dd7b0dc245091f0486e/FLAG02492b6b8 [2022-11-02 19:57:49,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/data/901204e47/395755b365bb4dd7b0dc245091f0486e [2022-11-02 19:57:49,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:57:49,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:57:49,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:57:49,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:57:49,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:57:49,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:57:49" (1/1) ... [2022-11-02 19:57:49,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695ab993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:49, skipping insertion in model container [2022-11-02 19:57:49,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:57:49" (1/1) ... [2022-11-02 19:57:49,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:57:49,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:57:49,912 WARN L230 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_9923afde-07f0-4ce0-8faf-5abd0dc3a718/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2022-11-02 19:57:50,099 WARN L230 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_9923afde-07f0-4ce0-8faf-5abd0dc3a718/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2022-11-02 19:57:50,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:57:50,121 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:57:50,159 WARN L230 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_9923afde-07f0-4ce0-8faf-5abd0dc3a718/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2022-11-02 19:57:50,300 WARN L230 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_9923afde-07f0-4ce0-8faf-5abd0dc3a718/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2022-11-02 19:57:50,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:57:50,376 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:57:50,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50 WrapperNode [2022-11-02 19:57:50,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:57:50,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:57:50,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:57:50,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:57:50,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,536 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1034 [2022-11-02 19:57:50,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:57:50,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:57:50,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:57:50,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:57:50,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:57:50,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:57:50,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:57:50,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:57:50,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (1/1) ... [2022-11-02 19:57:50,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:57:50,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:57:50,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:57:50,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:57:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 19:57:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 19:57:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 19:57:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:57:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 19:57:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 19:57:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 19:57:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:57:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 19:57:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:57:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 19:57:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 19:57:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:57:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:57:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:57:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:57:51,102 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:57:51,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:57:53,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:57:53,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:57:53,403 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-02 19:57:53,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:57:53 BoogieIcfgContainer [2022-11-02 19:57:53,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:57:53,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:57:53,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:57:53,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:57:53,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:57:49" (1/3) ... [2022-11-02 19:57:53,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7f50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:57:53, skipping insertion in model container [2022-11-02 19:57:53,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:50" (2/3) ... [2022-11-02 19:57:53,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7f50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:57:53, skipping insertion in model container [2022-11-02 19:57:53,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:57:53" (3/3) ... [2022-11-02 19:57:53,424 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2022-11-02 19:57:53,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:57:53,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-02 19:57:53,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:57:53,571 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=FINITE_AUTOMATA, 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;@26b26183, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:57:53,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-02 19:57:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 195 states have (on average 1.7025641025641025) internal successors, (332), 208 states have internal predecessors, (332), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:57:53,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:57:53,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:57:53,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:57:53,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:57:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:57:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-11-02 19:57:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:57:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84656473] [2022-11-02 19:57:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:53,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:57:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:57:53,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:57:53,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84656473] [2022-11-02 19:57:53,878 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 19:57:53,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847326604] [2022-11-02 19:57:53,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:53,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:57:53,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:57:53,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:57:53,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 19:57:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:57:54,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 19:57:54,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:57:54,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:57:54,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:57:54,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847326604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:57:54,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:57:54,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:57:54,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441318784] [2022-11-02 19:57:54,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:57:54,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 19:57:54,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:57:54,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 19:57:54,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:57:54,215 INFO L87 Difference]: Start difference. First operand has 214 states, 195 states have (on average 1.7025641025641025) internal successors, (332), 208 states have internal predecessors, (332), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-02 19:57:54,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:57:54,306 INFO L93 Difference]: Finished difference Result 426 states and 699 transitions. [2022-11-02 19:57:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 19:57:54,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-02 19:57:54,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:57:54,322 INFO L225 Difference]: With dead ends: 426 [2022-11-02 19:57:54,323 INFO L226 Difference]: Without dead ends: 210 [2022-11-02 19:57:54,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:57:54,332 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 19:57:54,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 19:57:54,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-02 19:57:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-02 19:57:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 192 states have (on average 1.3489583333333333) internal successors, (259), 204 states have internal predecessors, (259), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:57:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 275 transitions. [2022-11-02 19:57:54,402 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 275 transitions. Word has length 7 [2022-11-02 19:57:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:57:54,403 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 275 transitions. [2022-11-02 19:57:54,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-02 19:57:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 275 transitions. [2022-11-02 19:57:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 19:57:54,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:57:54,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:57:54,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 19:57:54,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-02 19:57:54,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:57:54,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:57:54,629 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-11-02 19:57:54,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:57:54,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409090304] [2022-11-02 19:57:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:54,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:57:54,696 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:57:54,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855792614] [2022-11-02 19:57:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:54,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:57:54,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:57:54,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:57:54,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 19:57:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:57:54,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 19:57:54,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:57:55,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 19:57:55,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:57:55,070 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 19:57:55,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 19:57:55,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:57:55,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 19:57:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:57:55,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:57:55,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:57:55,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409090304] [2022-11-02 19:57:55,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:57:55,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855792614] [2022-11-02 19:57:55,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855792614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:57:55,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:57:55,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 19:57:55,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015138077] [2022-11-02 19:57:55,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:57:55,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 19:57:55,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:57:55,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 19:57:55,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 19:57:55,151 INFO L87 Difference]: Start difference. First operand 210 states and 275 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-11-02 19:57:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:57:56,235 INFO L93 Difference]: Finished difference Result 348 states and 463 transitions. [2022-11-02 19:57:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 19:57:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-11-02 19:57:56,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:57:56,239 INFO L225 Difference]: With dead ends: 348 [2022-11-02 19:57:56,239 INFO L226 Difference]: Without dead ends: 346 [2022-11-02 19:57:56,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 19:57:56,241 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 208 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 19:57:56,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 848 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 19:57:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-02 19:57:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 216. [2022-11-02 19:57:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 198 states have (on average 1.3434343434343434) internal successors, (266), 210 states have internal predecessors, (266), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:57:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2022-11-02 19:57:56,287 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 282 transitions. Word has length 7 [2022-11-02 19:57:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:57:56,287 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 282 transitions. [2022-11-02 19:57:56,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-11-02 19:57:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 282 transitions. [2022-11-02 19:57:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 19:57:56,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:57:56,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:57:56,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 19:57:56,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:57:56,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:57:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:57:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash -479642755, now seen corresponding path program 1 times [2022-11-02 19:57:56,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:57:56,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890717598] [2022-11-02 19:57:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:56,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:57:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:57:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:57:56,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:57:56,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890717598] [2022-11-02 19:57:56,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890717598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:57:56,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:57:56,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 19:57:56,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437007202] [2022-11-02 19:57:56,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:57:56,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 19:57:56,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:57:56,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 19:57:56,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 19:57:56,693 INFO L87 Difference]: Start difference. First operand 216 states and 282 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-02 19:57:57,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 19:57:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:57:58,221 INFO L93 Difference]: Finished difference Result 420 states and 558 transitions. [2022-11-02 19:57:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 19:57:58,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-02 19:57:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:57:58,224 INFO L225 Difference]: With dead ends: 420 [2022-11-02 19:57:58,224 INFO L226 Difference]: Without dead ends: 312 [2022-11-02 19:57:58,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 19:57:58,227 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 119 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 19:57:58,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 708 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 19:57:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-02 19:57:58,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 216. [2022-11-02 19:57:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 210 states have internal predecessors, (265), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:57:58,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 281 transitions. [2022-11-02 19:57:58,282 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 281 transitions. Word has length 10 [2022-11-02 19:57:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:57:58,283 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 281 transitions. [2022-11-02 19:57:58,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-02 19:57:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 281 transitions. [2022-11-02 19:57:58,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 19:57:58,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:57:58,285 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] [2022-11-02 19:57:58,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 19:57:58,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:57:58,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:57:58,287 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2022-11-02 19:57:58,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:57:58,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517460033] [2022-11-02 19:57:58,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:58,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:57:58,505 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:57:58,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837591392] [2022-11-02 19:57:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:58,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:57:58,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:57:58,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:57:58,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 19:57:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:57:59,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 19:57:59,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:57:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:57:59,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:57:59,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:57:59,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517460033] [2022-11-02 19:57:59,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:57:59,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837591392] [2022-11-02 19:57:59,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837591392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:57:59,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:57:59,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:57:59,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125544478] [2022-11-02 19:57:59,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:57:59,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:57:59,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:57:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:57:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:57:59,583 INFO L87 Difference]: Start difference. First operand 216 states and 281 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-11-02 19:57:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:57:59,705 INFO L93 Difference]: Finished difference Result 445 states and 585 transitions. [2022-11-02 19:57:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:57:59,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-11-02 19:57:59,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:57:59,709 INFO L225 Difference]: With dead ends: 445 [2022-11-02 19:57:59,709 INFO L226 Difference]: Without dead ends: 237 [2022-11-02 19:57:59,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:57:59,712 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 9 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 495 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 [2022-11-02 19:57:59,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 495 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:57:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-02 19:57:59,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2022-11-02 19:57:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 218 states have (on average 1.3073394495412844) internal successors, (285), 230 states have internal predecessors, (285), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:57:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 301 transitions. [2022-11-02 19:57:59,728 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 301 transitions. Word has length 57 [2022-11-02 19:57:59,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:57:59,728 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 301 transitions. [2022-11-02 19:57:59,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-11-02 19:57:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 301 transitions. [2022-11-02 19:57:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 19:57:59,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:57:59,731 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] [2022-11-02 19:57:59,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 19:57:59,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:57:59,960 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:57:59,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:57:59,960 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2022-11-02 19:57:59,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:57:59,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787553012] [2022-11-02 19:57:59,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:57:59,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:00,160 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:58:00,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507007003] [2022-11-02 19:58:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:00,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:00,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:00,164 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:00,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 19:58:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:01,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 19:58:01,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:58:01,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:58:01,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:01,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787553012] [2022-11-02 19:58:01,137 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:58:01,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507007003] [2022-11-02 19:58:01,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507007003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:58:01,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:58:01,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 19:58:01,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290193900] [2022-11-02 19:58:01,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:58:01,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 19:58:01,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 19:58:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 19:58:01,141 INFO L87 Difference]: Start difference. First operand 236 states and 301 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-11-02 19:58:01,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:01,275 INFO L93 Difference]: Finished difference Result 454 states and 584 transitions. [2022-11-02 19:58:01,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 19:58:01,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-11-02 19:58:01,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:01,278 INFO L225 Difference]: With dead ends: 454 [2022-11-02 19:58:01,278 INFO L226 Difference]: Without dead ends: 226 [2022-11-02 19:58:01,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 19:58:01,280 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 240 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:01,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 527 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:58:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-02 19:58:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 222. [2022-11-02 19:58:01,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.2941176470588236) internal successors, (264), 216 states have internal predecessors, (264), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:58:01,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 280 transitions. [2022-11-02 19:58:01,293 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 280 transitions. Word has length 57 [2022-11-02 19:58:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:01,294 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 280 transitions. [2022-11-02 19:58:01,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-11-02 19:58:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 280 transitions. [2022-11-02 19:58:01,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 19:58:01,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:01,296 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] [2022-11-02 19:58:01,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:01,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:01,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:58:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:01,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2022-11-02 19:58:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:01,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568166626] [2022-11-02 19:58:01,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:01,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:01,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:58:01,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145184707] [2022-11-02 19:58:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:01,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:01,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:01,703 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:01,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 19:58:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:02,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 19:58:02,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:58:02,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:58:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:02,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568166626] [2022-11-02 19:58:02,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 19:58:02,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145184707] [2022-11-02 19:58:02,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145184707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:58:02,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:58:02,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:58:02,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504933585] [2022-11-02 19:58:02,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:58:02,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:58:02,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:58:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:58:02,984 INFO L87 Difference]: Start difference. First operand 222 states and 280 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-11-02 19:58:03,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:03,132 INFO L93 Difference]: Finished difference Result 564 states and 718 transitions. [2022-11-02 19:58:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:58:03,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-11-02 19:58:03,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:03,135 INFO L225 Difference]: With dead ends: 564 [2022-11-02 19:58:03,135 INFO L226 Difference]: Without dead ends: 350 [2022-11-02 19:58:03,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:58:03,137 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 119 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:03,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 578 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:58:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-02 19:58:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 328. [2022-11-02 19:58:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 310 states have (on average 1.2838709677419355) internal successors, (398), 322 states have internal predecessors, (398), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-02 19:58:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 414 transitions. [2022-11-02 19:58:03,155 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 414 transitions. Word has length 57 [2022-11-02 19:58:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:03,156 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 414 transitions. [2022-11-02 19:58:03,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-11-02 19:58:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 414 transitions. [2022-11-02 19:58:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-02 19:58:03,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:03,159 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] [2022-11-02 19:58:03,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:03,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:03,385 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 19:58:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:03,386 INFO L85 PathProgramCache]: Analyzing trace with hash -436973774, now seen corresponding path program 1 times [2022-11-02 19:58:03,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:03,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033165134] [2022-11-02 19:58:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:03,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:03,485 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 19:58:03,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12030307] [2022-11-02 19:58:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:03,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:03,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:03,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:03,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9923afde-07f0-4ce0-8faf-5abd0dc3a718/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 19:58:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:04,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 119 conjunts are in the unsatisfiable core [2022-11-02 19:58:04,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:04,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 19:58:04,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:58:04,468 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 19:58:04,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-02 19:58:04,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:58:04,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:58:05,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:58:05,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:58:05,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 19:58:05,541 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-02 19:58:05,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2022-11-02 19:58:05,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 19:58:05,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-02 19:58:34,375 INFO L244 Elim1Store]: Index analysis took 1372 ms