./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:46:46,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:46,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:46,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:46,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:46,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:46,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:46,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:46,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:46,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:46,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:46,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:46,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:46,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:46,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:46,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:46,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:46,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:46,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:46,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:46,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:46,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:46,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:46,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:46,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:46,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:46,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:46,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:46,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:46,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:46,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:46,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:46,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:46,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:46,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:46,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:46,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:46,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:46,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:46,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:46,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:46,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:46:46,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:46,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:46,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:46,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:46,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:46,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:46,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:46,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:46,808 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:46,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:46,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:46:46,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:46:46,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:46:46,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:46:46,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:46,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:46:46,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:46,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:46:46,810 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:46:46,811 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:46:46,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:46:46,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:46,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:46:46,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:46,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:46,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:46,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:46,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:46,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:46,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:46:46,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:46:46,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:46:46,814 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:46:46,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:46:46,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:46:46,814 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_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 [2022-11-16 12:46:47,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:47,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:47,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:47,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:47,085 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:47,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2022-11-16 12:46:47,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/data/2108d7488/14e839dfea6d45838c59de36f83de21f/FLAGa5e1bae56 [2022-11-16 12:46:47,736 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:47,737 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2022-11-16 12:46:47,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/data/2108d7488/14e839dfea6d45838c59de36f83de21f/FLAGa5e1bae56 [2022-11-16 12:46:47,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/data/2108d7488/14e839dfea6d45838c59de36f83de21f [2022-11-16 12:46:47,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:47,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:47,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:47,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:47,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:47,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:47" (1/1) ... [2022-11-16 12:46:47,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e598949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:47, skipping insertion in model container [2022-11-16 12:46:47,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:47" (1/1) ... [2022-11-16 12:46:47,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:48,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:48,496 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-16 12:46:48,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:48,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:48,654 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2022-11-16 12:46:48,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:48,749 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:48,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48 WrapperNode [2022-11-16 12:46:48,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:48,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:48,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:48,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:48,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,838 INFO L138 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 623 [2022-11-16 12:46:48,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:48,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:48,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:48,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:48,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:48,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:48,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:48,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:48,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:48,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:48,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:48,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:46:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 12:46:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 12:46:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:46:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:46:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:46:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:46:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:46:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:46:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:46:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:46:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:46:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:46:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:49,231 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:49,233 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:50,386 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:50,393 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:50,393 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-16 12:46:50,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:50 BoogieIcfgContainer [2022-11-16 12:46:50,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:50,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:50,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:50,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:50,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:47" (1/3) ... [2022-11-16 12:46:50,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecdfc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:50, skipping insertion in model container [2022-11-16 12:46:50,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (2/3) ... [2022-11-16 12:46:50,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecdfc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:50, skipping insertion in model container [2022-11-16 12:46:50,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:50" (3/3) ... [2022-11-16 12:46:50,404 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i [2022-11-16 12:46:50,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:50,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 12:46:50,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:46:50,480 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fcb3755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:46:50,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 12:46:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 12:46:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 12:46:50,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:50,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 12:46:50,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:50,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-11-16 12:46:50,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:50,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654961059] [2022-11-16 12:46:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:50,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:50,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654961059] [2022-11-16 12:46:50,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654961059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:50,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:50,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:46:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181820466] [2022-11-16 12:46:50,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:50,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:50,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:50,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:50,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:50,791 INFO L87 Difference]: Start difference. First operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:50,926 INFO L93 Difference]: Finished difference Result 360 states and 598 transitions. [2022-11-16 12:46:50,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 12:46:50,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:50,948 INFO L225 Difference]: With dead ends: 360 [2022-11-16 12:46:50,948 INFO L226 Difference]: Without dead ends: 222 [2022-11-16 12:46:50,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:50,963 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 110 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:50,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 351 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:46:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-16 12:46:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 135. [2022-11-16 12:46:51,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 129 states have internal predecessors, (155), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 12:46:51,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2022-11-16 12:46:51,046 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 181 transitions. Word has length 6 [2022-11-16 12:46:51,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:51,047 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 181 transitions. [2022-11-16 12:46:51,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 181 transitions. [2022-11-16 12:46:51,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:46:51,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:51,052 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] [2022-11-16 12:46:51,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:46:51,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:51,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:51,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1053673023, now seen corresponding path program 1 times [2022-11-16 12:46:51,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:51,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976960631] [2022-11-16 12:46:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:51,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:51,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:46:51,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117526037] [2022-11-16 12:46:51,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:51,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:51,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:51,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:46:51,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:46:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:52,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:46:52,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:52,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:46:52,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:52,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976960631] [2022-11-16 12:46:52,045 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:46:52,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117526037] [2022-11-16 12:46:52,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117526037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:52,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:52,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:46:52,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149151745] [2022-11-16 12:46:52,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:52,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:52,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:52,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:52,049 INFO L87 Difference]: Start difference. First operand 135 states and 181 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:52,134 INFO L93 Difference]: Finished difference Result 285 states and 387 transitions. [2022-11-16 12:46:52,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2022-11-16 12:46:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:52,136 INFO L225 Difference]: With dead ends: 285 [2022-11-16 12:46:52,136 INFO L226 Difference]: Without dead ends: 156 [2022-11-16 12:46:52,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:52,138 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 9 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:52,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 299 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:46:52,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-16 12:46:52,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2022-11-16 12:46:52,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 135 states have (on average 1.2962962962962963) internal successors, (175), 149 states have internal predecessors, (175), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 12:46:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 201 transitions. [2022-11-16 12:46:52,150 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 201 transitions. Word has length 56 [2022-11-16 12:46:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:52,150 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 201 transitions. [2022-11-16 12:46:52,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:52,151 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 201 transitions. [2022-11-16 12:46:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:46:52,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:52,152 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] [2022-11-16 12:46:52,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:52,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:52,362 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:52,362 INFO L85 PathProgramCache]: Analyzing trace with hash 778913409, now seen corresponding path program 1 times [2022-11-16 12:46:52,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:52,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351455879] [2022-11-16 12:46:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:52,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:52,518 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:46:52,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815955323] [2022-11-16 12:46:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:52,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:52,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:52,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:46:52,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:46:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:53,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:46:53,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:53,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:46:53,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351455879] [2022-11-16 12:46:53,420 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:46:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815955323] [2022-11-16 12:46:53,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815955323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:53,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:53,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:46:53,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642786618] [2022-11-16 12:46:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:53,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:46:53,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:46:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:46:53,423 INFO L87 Difference]: Start difference. First operand 155 states and 201 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:53,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:53,563 INFO L93 Difference]: Finished difference Result 295 states and 387 transitions. [2022-11-16 12:46:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:46:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-11-16 12:46:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:53,566 INFO L225 Difference]: With dead ends: 295 [2022-11-16 12:46:53,567 INFO L226 Difference]: Without dead ends: 146 [2022-11-16 12:46:53,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:46:53,573 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 139 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:53,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 333 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:46:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-16 12:46:53,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2022-11-16 12:46:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 135 states have internal predecessors, (154), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 12:46:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 180 transitions. [2022-11-16 12:46:53,598 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 180 transitions. Word has length 56 [2022-11-16 12:46:53,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:53,599 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 180 transitions. [2022-11-16 12:46:53,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 180 transitions. [2022-11-16 12:46:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:46:53,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:53,607 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] [2022-11-16 12:46:53,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:53,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 12:46:53,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1492117709, now seen corresponding path program 1 times [2022-11-16 12:46:53,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:53,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338565327] [2022-11-16 12:46:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:53,970 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:46:53,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175044907] [2022-11-16 12:46:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:53,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:53,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:53,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:46:53,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:46:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:54,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:46:54,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:54,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:46:54,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:54,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338565327] [2022-11-16 12:46:54,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:46:54,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175044907] [2022-11-16 12:46:54,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175044907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:54,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:54,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:46:54,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014861700] [2022-11-16 12:46:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:54,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:46:54,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:46:54,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:46:54,956 INFO L87 Difference]: Start difference. First operand 141 states and 180 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:55,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:55,019 INFO L93 Difference]: Finished difference Result 234 states and 292 transitions. [2022-11-16 12:46:55,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:46:55,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-11-16 12:46:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:55,024 INFO L225 Difference]: With dead ends: 234 [2022-11-16 12:46:55,024 INFO L226 Difference]: Without dead ends: 233 [2022-11-16 12:46:55,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:46:55,029 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 52 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:55,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 489 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:46:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-11-16 12:46:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2022-11-16 12:46:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 208 states have (on average 1.2355769230769231) internal successors, (257), 222 states have internal predecessors, (257), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 12:46:55,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2022-11-16 12:46:55,059 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 56 [2022-11-16 12:46:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:55,062 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2022-11-16 12:46:55,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:55,063 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2022-11-16 12:46:55,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 12:46:55,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:55,070 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] [2022-11-16 12:46:55,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:55,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:55,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:55,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:55,271 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-11-16 12:46:55,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:55,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135053296] [2022-11-16 12:46:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:55,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:55,386 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:46:55,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523152226] [2022-11-16 12:46:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:55,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:55,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:55,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:46:55,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:46:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:56,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:46:56,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:56,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:46:56,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:56,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135053296] [2022-11-16 12:46:56,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:46:56,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523152226] [2022-11-16 12:46:56,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523152226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:56,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:56,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:46:56,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453737284] [2022-11-16 12:46:56,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:56,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:46:56,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:56,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:46:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:46:56,430 INFO L87 Difference]: Start difference. First operand 231 states and 289 transitions. Second operand has 4 states, 3 states have (on average 19.0) 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) [2022-11-16 12:46:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:56,480 INFO L93 Difference]: Finished difference Result 231 states and 289 transitions. [2022-11-16 12:46:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:46:56,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) 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 [2022-11-16 12:46:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:56,483 INFO L225 Difference]: With dead ends: 231 [2022-11-16 12:46:56,484 INFO L226 Difference]: Without dead ends: 230 [2022-11-16 12:46:56,484 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 [2022-11-16 12:46:56,485 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 82 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:56,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:46:56,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-16 12:46:56,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-16 12:46:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 208 states have (on average 1.2307692307692308) internal successors, (256), 221 states have internal predecessors, (256), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 12:46:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 288 transitions. [2022-11-16 12:46:56,522 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 288 transitions. Word has length 57 [2022-11-16 12:46:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:56,525 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 288 transitions. [2022-11-16 12:46:56,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) 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) [2022-11-16 12:46:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 288 transitions. [2022-11-16 12:46:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-16 12:46:56,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:56,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:56,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:56,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:56,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:56,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash -268562827, now seen corresponding path program 1 times [2022-11-16 12:46:56,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:56,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828813956] [2022-11-16 12:46:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:56,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:56,864 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:46:56,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695025679] [2022-11-16 12:46:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:56,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:56,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:56,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:46:56,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:46:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:57,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:46:57,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:58,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:46:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:58,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:58,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828813956] [2022-11-16 12:46:58,136 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:46:58,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695025679] [2022-11-16 12:46:58,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695025679] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:46:58,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:46:58,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:46:58,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632298047] [2022-11-16 12:46:58,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:46:58,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:46:58,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:46:58,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:46:58,138 INFO L87 Difference]: Start difference. First operand 230 states and 288 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:58,276 INFO L93 Difference]: Finished difference Result 361 states and 460 transitions. [2022-11-16 12:46:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:46:58,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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 61 [2022-11-16 12:46:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:58,280 INFO L225 Difference]: With dead ends: 361 [2022-11-16 12:46:58,280 INFO L226 Difference]: Without dead ends: 327 [2022-11-16 12:46:58,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:46:58,283 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 507 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:58,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 644 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:46:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-16 12:46:58,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-11-16 12:46:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 315 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-16 12:46:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2022-11-16 12:46:58,315 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 61 [2022-11-16 12:46:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:58,316 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2022-11-16 12:46:58,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2022-11-16 12:46:58,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-16 12:46:58,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:58,318 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] [2022-11-16 12:46:58,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:58,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 12:46:58,529 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:46:58,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash -268859924, now seen corresponding path program 1 times [2022-11-16 12:46:58,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:58,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196380328] [2022-11-16 12:46:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:58,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:58,672 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:46:58,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880086232] [2022-11-16 12:46:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:58,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:46:58,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:58,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:46:58,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:46:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:59,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:46:59,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:59,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:46:59,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:59,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196380328] [2022-11-16 12:46:59,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:46:59,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880086232] [2022-11-16 12:46:59,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880086232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:59,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:59,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:46:59,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873541722] [2022-11-16 12:46:59,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:59,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:59,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:59,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:59,908 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:59,996 INFO L93 Difference]: Finished difference Result 594 states and 742 transitions. [2022-11-16 12:46:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2022-11-16 12:46:59,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:00,001 INFO L225 Difference]: With dead ends: 594 [2022-11-16 12:47:00,001 INFO L226 Difference]: Without dead ends: 325 [2022-11-16 12:47:00,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:47:00,003 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 15 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:00,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 320 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-16 12:47:00,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-11-16 12:47:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 300 states have (on average 1.2133333333333334) internal successors, (364), 313 states have internal predecessors, (364), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-16 12:47:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 402 transitions. [2022-11-16 12:47:00,023 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 402 transitions. Word has length 61 [2022-11-16 12:47:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:00,023 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 402 transitions. [2022-11-16 12:47:00,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:00,024 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 402 transitions. [2022-11-16 12:47:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 12:47:00,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:00,025 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:00,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 12:47:00,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 12:47:00,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:47:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:00,235 INFO L85 PathProgramCache]: Analyzing trace with hash 123221931, now seen corresponding path program 1 times [2022-11-16 12:47:00,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:00,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005954744] [2022-11-16 12:47:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:00,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:00,298 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:47:00,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084202250] [2022-11-16 12:47:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:00,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:00,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:00,304 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:00,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:47:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:07,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:47:07,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:47:07,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:47:07,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:07,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005954744] [2022-11-16 12:47:07,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:47:07,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084202250] [2022-11-16 12:47:07,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084202250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:07,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:07,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:47:07,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806605760] [2022-11-16 12:47:07,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:07,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:47:07,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:07,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:47:07,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:47:07,994 INFO L87 Difference]: Start difference. First operand 325 states and 402 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:47:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:08,046 INFO L93 Difference]: Finished difference Result 601 states and 758 transitions. [2022-11-16 12:47:08,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:47:08,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2022-11-16 12:47:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:08,048 INFO L225 Difference]: With dead ends: 601 [2022-11-16 12:47:08,049 INFO L226 Difference]: Without dead ends: 328 [2022-11-16 12:47:08,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:47:08,050 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:08,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 494 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:47:08,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-16 12:47:08,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-11-16 12:47:08,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 316 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-16 12:47:08,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 408 transitions. [2022-11-16 12:47:08,067 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 408 transitions. Word has length 76 [2022-11-16 12:47:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:08,069 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 408 transitions. [2022-11-16 12:47:08,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:47:08,069 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 408 transitions. [2022-11-16 12:47:08,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:47:08,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:08,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:08,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:08,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:08,289 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:47:08,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1992697225, now seen corresponding path program 1 times [2022-11-16 12:47:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:08,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42666388] [2022-11-16 12:47:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:08,341 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:47:08,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904522732] [2022-11-16 12:47:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:08,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:08,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:08,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:47:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:21,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:47:21,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:47:21,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:47:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:47:21,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:21,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42666388] [2022-11-16 12:47:21,560 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:47:21,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904522732] [2022-11-16 12:47:21,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904522732] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:47:21,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:47:21,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:47:21,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816779262] [2022-11-16 12:47:21,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:47:21,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:47:21,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:21,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:47:21,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:47:21,562 INFO L87 Difference]: Start difference. First operand 328 states and 408 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:47:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:21,701 INFO L93 Difference]: Finished difference Result 615 states and 785 transitions. [2022-11-16 12:47:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:47:21,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2022-11-16 12:47:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:21,704 INFO L225 Difference]: With dead ends: 615 [2022-11-16 12:47:21,704 INFO L226 Difference]: Without dead ends: 339 [2022-11-16 12:47:21,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:21,706 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 16 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:21,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 659 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:47:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-16 12:47:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-11-16 12:47:21,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 310 states have (on average 1.229032258064516) internal successors, (381), 324 states have internal predecessors, (381), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-16 12:47:21,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 422 transitions. [2022-11-16 12:47:21,720 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 422 transitions. Word has length 78 [2022-11-16 12:47:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:21,721 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 422 transitions. [2022-11-16 12:47:21,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:47:21,721 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 422 transitions. [2022-11-16 12:47:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 12:47:21,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:21,722 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:21,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:21,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:21,935 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:47:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:21,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2085629483, now seen corresponding path program 2 times [2022-11-16 12:47:21,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:21,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447949236] [2022-11-16 12:47:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:21,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:47:21,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250411976] [2022-11-16 12:47:21,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:47:21,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:21,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:21,993 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:22,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 12:47:23,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:47:23,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:47:23,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 12:47:23,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:47:23,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:47:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 12:47:23,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:23,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447949236] [2022-11-16 12:47:23,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:47:23,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250411976] [2022-11-16 12:47:23,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250411976] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:47:23,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:47:23,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2022-11-16 12:47:23,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568798645] [2022-11-16 12:47:23,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:47:23,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:47:23,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:23,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:47:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:47:23,515 INFO L87 Difference]: Start difference. First operand 337 states and 422 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 12:47:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:24,027 INFO L93 Difference]: Finished difference Result 674 states and 875 transitions. [2022-11-16 12:47:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:47:24,028 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 82 [2022-11-16 12:47:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:24,031 INFO L225 Difference]: With dead ends: 674 [2022-11-16 12:47:24,031 INFO L226 Difference]: Without dead ends: 343 [2022-11-16 12:47:24,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:47:24,033 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 170 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:24,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1436 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:47:24,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-16 12:47:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 334. [2022-11-16 12:47:24,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 307 states have (on average 1.228013029315961) internal successors, (377), 321 states have internal predecessors, (377), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-16 12:47:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 418 transitions. [2022-11-16 12:47:24,055 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 418 transitions. Word has length 82 [2022-11-16 12:47:24,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:24,056 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 418 transitions. [2022-11-16 12:47:24,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 12:47:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 418 transitions. [2022-11-16 12:47:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 12:47:24,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:47:24,057 INFO L195 NwaCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:24,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:24,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:47:24,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:47:24,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:24,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1941349333, now seen corresponding path program 3 times [2022-11-16 12:47:24,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:24,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977407148] [2022-11-16 12:47:24,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:24,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:24,345 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:47:24,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526386674] [2022-11-16 12:47:24,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:47:24,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:47:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:24,351 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:47:24,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 12:48:35,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:48:35,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:48:35,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-16 12:48:35,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:48:35,327 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 12:48:35,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2022-11-16 12:48:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:35,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:48:36,026 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:36,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:36,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977407148] [2022-11-16 12:48:36,027 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:48:36,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526386674] [2022-11-16 12:48:36,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526386674] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:48:36,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:48:36,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-16 12:48:36,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984436288] [2022-11-16 12:48:36,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:36,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:48:36,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:36,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:48:36,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:48:36,030 INFO L87 Difference]: Start difference. First operand 334 states and 418 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:48:36,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:36,140 INFO L93 Difference]: Finished difference Result 334 states and 418 transitions. [2022-11-16 12:48:36,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:48:36,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2022-11-16 12:48:36,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:36,143 INFO L225 Difference]: With dead ends: 334 [2022-11-16 12:48:36,143 INFO L226 Difference]: Without dead ends: 333 [2022-11-16 12:48:36,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:48:36,145 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 201 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:36,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 359 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:48:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-16 12:48:36,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-11-16 12:48:36,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 307 states have (on average 1.221498371335505) internal successors, (375), 320 states have internal predecessors, (375), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-16 12:48:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 416 transitions. [2022-11-16 12:48:36,171 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 416 transitions. Word has length 88 [2022-11-16 12:48:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:36,172 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 416 transitions. [2022-11-16 12:48:36,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:48:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 416 transitions. [2022-11-16 12:48:36,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-16 12:48:36,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:36,176 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:36,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:48:36,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 12:48:36,390 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:48:36,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:36,390 INFO L85 PathProgramCache]: Analyzing trace with hash 164908148, now seen corresponding path program 1 times [2022-11-16 12:48:36,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:36,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296394811] [2022-11-16 12:48:36,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:36,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:36,670 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:48:36,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891809490] [2022-11-16 12:48:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:36,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:36,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:48:36,672 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:48:36,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 12:48:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:38,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 3780 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:48:38,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:48:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:38,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:48:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:39,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:39,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296394811] [2022-11-16 12:48:39,306 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:48:39,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891809490] [2022-11-16 12:48:39,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891809490] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:48:39,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:48:39,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-16 12:48:39,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142872974] [2022-11-16 12:48:39,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:48:39,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:48:39,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:48:39,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:48:39,308 INFO L87 Difference]: Start difference. First operand 333 states and 416 transitions. Second operand has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:48:39,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:39,497 INFO L93 Difference]: Finished difference Result 454 states and 578 transitions. [2022-11-16 12:48:39,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:48:39,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 193 [2022-11-16 12:48:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:39,501 INFO L225 Difference]: With dead ends: 454 [2022-11-16 12:48:39,501 INFO L226 Difference]: Without dead ends: 453 [2022-11-16 12:48:39,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:48:39,502 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 353 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:39,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1070 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:48:39,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-16 12:48:39,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 332. [2022-11-16 12:48:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 307 states have (on average 1.218241042345277) internal successors, (374), 319 states have internal predecessors, (374), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-16 12:48:39,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 415 transitions. [2022-11-16 12:48:39,530 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 415 transitions. Word has length 193 [2022-11-16 12:48:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:39,530 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 415 transitions. [2022-11-16 12:48:39,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:48:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 415 transitions. [2022-11-16 12:48:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-16 12:48:39,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:39,534 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:39,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:48:39,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 12:48:39,750 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:48:39,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2021787180, now seen corresponding path program 1 times [2022-11-16 12:48:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:39,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191988069] [2022-11-16 12:48:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:39,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:40,026 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:48:40,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303795130] [2022-11-16 12:48:40,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:40,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:40,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:48:40,029 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:48:40,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 12:48:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:42,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:48:42,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:48:42,762 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:42,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:48:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:43,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:43,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191988069] [2022-11-16 12:48:43,086 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:48:43,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303795130] [2022-11-16 12:48:43,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303795130] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:48:43,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:48:43,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-16 12:48:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71871482] [2022-11-16 12:48:43,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:48:43,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:48:43,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:48:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:48:43,090 INFO L87 Difference]: Start difference. First operand 332 states and 415 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:48:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:43,351 INFO L93 Difference]: Finished difference Result 733 states and 915 transitions. [2022-11-16 12:48:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:48:43,352 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 198 [2022-11-16 12:48:43,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:43,356 INFO L225 Difference]: With dead ends: 733 [2022-11-16 12:48:43,357 INFO L226 Difference]: Without dead ends: 700 [2022-11-16 12:48:43,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:48:43,358 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 755 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:43,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1425 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:48:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-11-16 12:48:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-11-16 12:48:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 663 states have (on average 1.191553544494721) internal successors, (790), 675 states have internal predecessors, (790), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-11-16 12:48:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 859 transitions. [2022-11-16 12:48:43,403 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 859 transitions. Word has length 198 [2022-11-16 12:48:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:43,404 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 859 transitions. [2022-11-16 12:48:43,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:48:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 859 transitions. [2022-11-16 12:48:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-16 12:48:43,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:43,413 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:43,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:48:43,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:43,628 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:48:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1398619156, now seen corresponding path program 2 times [2022-11-16 12:48:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:43,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329272801] [2022-11-16 12:48:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:43,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:44,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:48:44,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925321257] [2022-11-16 12:48:44,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:48:44,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:44,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:48:44,317 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:48:44,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 12:48:46,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:48:46,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:48:46,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:48:46,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:48:47,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-11-16 12:48:47,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:48:47,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:47,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329272801] [2022-11-16 12:48:47,699 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:48:47,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925321257] [2022-11-16 12:48:47,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925321257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:47,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:47,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:48:47,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453133438] [2022-11-16 12:48:47,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:47,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:48:47,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:47,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:48:47,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:48:47,702 INFO L87 Difference]: Start difference. First operand 700 states and 859 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:48:47,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:47,790 INFO L93 Difference]: Finished difference Result 726 states and 905 transitions. [2022-11-16 12:48:47,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:48:47,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 418 [2022-11-16 12:48:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:47,795 INFO L225 Difference]: With dead ends: 726 [2022-11-16 12:48:47,795 INFO L226 Difference]: Without dead ends: 725 [2022-11-16 12:48:47,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:48:47,797 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 63 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:47,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 358 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:48:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-11-16 12:48:47,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 702. [2022-11-16 12:48:47,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 665 states have (on average 1.1909774436090226) internal successors, (792), 677 states have internal predecessors, (792), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-11-16 12:48:47,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 861 transitions. [2022-11-16 12:48:47,888 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 861 transitions. Word has length 418 [2022-11-16 12:48:47,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:47,889 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 861 transitions. [2022-11-16 12:48:47,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:48:47,890 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 861 transitions. [2022-11-16 12:48:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-16 12:48:47,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:47,900 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:47,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:48:48,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:48,114 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:48:48,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash 407521300, now seen corresponding path program 1 times [2022-11-16 12:48:48,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:48,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070798917] [2022-11-16 12:48:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:48,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:49,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:48:49,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128874144] [2022-11-16 12:48:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:49,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:49,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:48:49,264 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:48:49,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 12:48:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:54,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 9721 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:48:54,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:48:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:55,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:48:56,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-16 12:48:56,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:56,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070798917] [2022-11-16 12:48:56,116 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:48:56,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128874144] [2022-11-16 12:48:56,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128874144] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:48:56,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:48:56,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-11-16 12:48:56,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650776541] [2022-11-16 12:48:56,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:48:56,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 12:48:56,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 12:48:56,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:48:56,120 INFO L87 Difference]: Start difference. First operand 702 states and 861 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:48:56,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:48:56,563 INFO L93 Difference]: Finished difference Result 1013 states and 1251 transitions. [2022-11-16 12:48:56,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:48:56,564 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 419 [2022-11-16 12:48:56,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:48:56,569 INFO L225 Difference]: With dead ends: 1013 [2022-11-16 12:48:56,569 INFO L226 Difference]: Without dead ends: 978 [2022-11-16 12:48:56,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 806 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-11-16 12:48:56,574 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1125 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:48:56,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 2105 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:48:56,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-16 12:48:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2022-11-16 12:48:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 932 states have (on average 1.184549356223176) internal successors, (1104), 944 states have internal predecessors, (1104), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-11-16 12:48:56,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1194 transitions. [2022-11-16 12:48:56,641 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1194 transitions. Word has length 419 [2022-11-16 12:48:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:48:56,642 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1194 transitions. [2022-11-16 12:48:56,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:48:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1194 transitions. [2022-11-16 12:48:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-11-16 12:48:56,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:48:56,660 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:48:56,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:48:56,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:48:56,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:48:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash 931954965, now seen corresponding path program 2 times [2022-11-16 12:48:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:56,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105859833] [2022-11-16 12:48:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:56,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:57,825 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:48:57,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420944363] [2022-11-16 12:48:57,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:48:57,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:48:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:48:57,831 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:48:57,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 12:49:02,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:49:02,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:49:02,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:49:02,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:49:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:49:03,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:49:03,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:03,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105859833] [2022-11-16 12:49:03,160 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:49:03,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420944363] [2022-11-16 12:49:03,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420944363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:03,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:03,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:49:03,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722937853] [2022-11-16 12:49:03,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:03,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:49:03,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:03,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:49:03,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:49:03,162 INFO L87 Difference]: Start difference. First operand 978 states and 1194 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:49:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:03,259 INFO L93 Difference]: Finished difference Result 978 states and 1194 transitions. [2022-11-16 12:49:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:49:03,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 584 [2022-11-16 12:49:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:03,265 INFO L225 Difference]: With dead ends: 978 [2022-11-16 12:49:03,265 INFO L226 Difference]: Without dead ends: 977 [2022-11-16 12:49:03,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:49:03,266 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 98 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:03,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 266 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:49:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-11-16 12:49:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2022-11-16 12:49:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 932 states have (on average 1.1834763948497855) internal successors, (1103), 943 states have internal predecessors, (1103), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-11-16 12:49:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1193 transitions. [2022-11-16 12:49:03,328 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1193 transitions. Word has length 584 [2022-11-16 12:49:03,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:03,329 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1193 transitions. [2022-11-16 12:49:03,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:49:03,329 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1193 transitions. [2022-11-16 12:49:03,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-16 12:49:03,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:03,336 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:03,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:49:03,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 12:49:03,547 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:49:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1425654163, now seen corresponding path program 1 times [2022-11-16 12:49:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:03,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652090767] [2022-11-16 12:49:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:04,542 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:49:04,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408652486] [2022-11-16 12:49:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:04,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:04,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:04,548 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:49:04,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 12:49:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:12,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 14193 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:49:12,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:49:13,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2563 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:49:13,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:49:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2563 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:49:14,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:14,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652090767] [2022-11-16 12:49:14,096 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:49:14,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408652486] [2022-11-16 12:49:14,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408652486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:49:14,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:49:14,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-11-16 12:49:14,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607365003] [2022-11-16 12:49:14,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:49:14,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:49:14,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:49:14,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:49:14,099 INFO L87 Difference]: Start difference. First operand 977 states and 1193 transitions. Second operand has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-16 12:49:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:14,689 INFO L93 Difference]: Finished difference Result 1069 states and 1344 transitions. [2022-11-16 12:49:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:49:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 595 [2022-11-16 12:49:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:14,696 INFO L225 Difference]: With dead ends: 1069 [2022-11-16 12:49:14,696 INFO L226 Difference]: Without dead ends: 1068 [2022-11-16 12:49:14,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1195 GetRequests, 1180 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:49:14,697 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 568 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:14,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 400 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:49:14,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-16 12:49:14,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1067. [2022-11-16 12:49:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 989 states have (on average 1.2032355915065722) internal successors, (1190), 1030 states have internal predecessors, (1190), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-16 12:49:14,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1340 transitions. [2022-11-16 12:49:14,792 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1340 transitions. Word has length 595 [2022-11-16 12:49:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:14,793 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 1340 transitions. [2022-11-16 12:49:14,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-16 12:49:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1340 transitions. [2022-11-16 12:49:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-16 12:49:14,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:14,805 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:14,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:49:15,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 12:49:15,031 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:49:15,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1431352973, now seen corresponding path program 2 times [2022-11-16 12:49:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:15,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004110157] [2022-11-16 12:49:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:16,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:49:16,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832281726] [2022-11-16 12:49:16,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:49:16,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:16,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:16,113 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:49:16,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-16 12:49:24,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:49:24,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:49:24,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 14301 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:49:24,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:49:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2641 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:49:25,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:49:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2641 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked. [2022-11-16 12:49:26,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:26,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004110157] [2022-11-16 12:49:26,829 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:49:26,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832281726] [2022-11-16 12:49:26,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832281726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:49:26,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:49:26,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-11-16 12:49:26,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270924258] [2022-11-16 12:49:26,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:49:26,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:49:26,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:49:26,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:49:26,833 INFO L87 Difference]: Start difference. First operand 1067 states and 1340 transitions. Second operand has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-16 12:49:28,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:28,266 INFO L93 Difference]: Finished difference Result 1249 states and 1641 transitions. [2022-11-16 12:49:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 12:49:28,267 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 631 [2022-11-16 12:49:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:28,273 INFO L225 Difference]: With dead ends: 1249 [2022-11-16 12:49:28,273 INFO L226 Difference]: Without dead ends: 1248 [2022-11-16 12:49:28,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1279 GetRequests, 1240 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 12:49:28,275 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 985 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:28,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 855 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:49:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-11-16 12:49:28,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1247. [2022-11-16 12:49:28,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1103 states have (on average 1.2366273798730734) internal successors, (1364), 1204 states have internal predecessors, (1364), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-11-16 12:49:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1634 transitions. [2022-11-16 12:49:28,416 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1634 transitions. Word has length 631 [2022-11-16 12:49:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:28,417 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1634 transitions. [2022-11-16 12:49:28,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-16 12:49:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1634 transitions. [2022-11-16 12:49:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2022-11-16 12:49:28,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:28,433 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:28,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-16 12:49:28,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 12:49:28,659 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:49:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash -684259021, now seen corresponding path program 3 times [2022-11-16 12:49:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:28,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400553857] [2022-11-16 12:49:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:29,692 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:49:29,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155237996] [2022-11-16 12:49:29,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:49:29,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:29,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:29,694 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:49:29,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-16 12:49:36,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:49:36,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:49:36,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:49:36,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:49:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-11-16 12:49:36,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:49:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:36,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400553857] [2022-11-16 12:49:36,819 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:49:36,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155237996] [2022-11-16 12:49:36,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155237996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:49:36,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:49:36,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:49:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029290542] [2022-11-16 12:49:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:49:36,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:49:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:36,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:49:36,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:49:36,823 INFO L87 Difference]: Start difference. First operand 1247 states and 1634 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:49:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:37,040 INFO L93 Difference]: Finished difference Result 1564 states and 2121 transitions. [2022-11-16 12:49:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:49:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 703 [2022-11-16 12:49:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:37,049 INFO L225 Difference]: With dead ends: 1564 [2022-11-16 12:49:37,049 INFO L226 Difference]: Without dead ends: 1563 [2022-11-16 12:49:37,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:49:37,051 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 152 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:37,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 351 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:49:37,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2022-11-16 12:49:37,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1490. [2022-11-16 12:49:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1274 states have (on average 1.2755102040816326) internal successors, (1625), 1429 states have internal predecessors, (1625), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-11-16 12:49:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2021 transitions. [2022-11-16 12:49:37,173 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2021 transitions. Word has length 703 [2022-11-16 12:49:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:37,174 INFO L495 AbstractCegarLoop]: Abstraction has 1490 states and 2021 transitions. [2022-11-16 12:49:37,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:49:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2021 transitions. [2022-11-16 12:49:37,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-11-16 12:49:37,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:37,185 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:37,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-16 12:49:37,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:37,399 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:49:37,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1306071377, now seen corresponding path program 1 times [2022-11-16 12:49:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:37,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036160337] [2022-11-16 12:49:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:37,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:38,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:49:38,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122578893] [2022-11-16 12:49:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:38,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:38,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:38,503 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:49:38,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-16 12:49:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:49:48,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 14519 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 12:49:48,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:49:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3112 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:49:50,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:49:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3112 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-11-16 12:49:51,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:49:51,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036160337] [2022-11-16 12:49:51,643 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:49:51,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122578893] [2022-11-16 12:49:51,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122578893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:49:51,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:49:51,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-11-16 12:49:51,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169956589] [2022-11-16 12:49:51,644 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:49:51,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-16 12:49:51,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:49:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-16 12:49:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-16 12:49:51,648 INFO L87 Difference]: Start difference. First operand 1490 states and 2021 transitions. Second operand has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-16 12:49:55,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:49:55,711 INFO L93 Difference]: Finished difference Result 2207 states and 3189 transitions. [2022-11-16 12:49:55,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-16 12:49:55,712 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 704 [2022-11-16 12:49:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:49:55,735 INFO L225 Difference]: With dead ends: 2207 [2022-11-16 12:49:55,737 INFO L226 Difference]: Without dead ends: 2206 [2022-11-16 12:49:55,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1449 GetRequests, 1362 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-11-16 12:49:55,741 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 2770 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 1269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 3541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1269 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:49:55,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2780 Valid, 1086 Invalid, 3541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1269 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 12:49:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-11-16 12:49:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2186. [2022-11-16 12:49:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1730 states have (on average 1.3416184971098266) internal successors, (2321), 2089 states have internal predecessors, (2321), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-11-16 12:49:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3149 transitions. [2022-11-16 12:49:56,013 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3149 transitions. Word has length 704 [2022-11-16 12:49:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:49:56,014 INFO L495 AbstractCegarLoop]: Abstraction has 2186 states and 3149 transitions. [2022-11-16 12:49:56,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-16 12:49:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3149 transitions. [2022-11-16 12:49:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2022-11-16 12:49:56,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:49:56,037 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:49:56,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-16 12:49:56,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:56,251 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:49:56,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:49:56,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1283538479, now seen corresponding path program 2 times [2022-11-16 12:49:56,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:49:56,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56005224] [2022-11-16 12:49:56,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:49:56,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:49:57,368 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:49:57,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116141409] [2022-11-16 12:49:57,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:49:57,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:49:57,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:49:57,370 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:49:57,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-16 12:50:09,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:50:09,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:50:09,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 14951 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-16 12:50:09,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:50:11,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:50:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 1871 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2022-11-16 12:50:14,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:14,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56005224] [2022-11-16 12:50:14,799 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:50:14,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116141409] [2022-11-16 12:50:14,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116141409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:50:14,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:50:14,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-11-16 12:50:14,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836491082] [2022-11-16 12:50:14,801 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:50:14,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-16 12:50:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:14,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-16 12:50:14,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-16 12:50:14,807 INFO L87 Difference]: Start difference. First operand 2186 states and 3149 transitions. Second operand has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-16 12:50:26,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:26,369 INFO L93 Difference]: Finished difference Result 3599 states and 5457 transitions. [2022-11-16 12:50:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-11-16 12:50:26,370 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 848 [2022-11-16 12:50:26,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:26,388 INFO L225 Difference]: With dead ends: 3599 [2022-11-16 12:50:26,389 INFO L226 Difference]: Without dead ends: 3598 [2022-11-16 12:50:26,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1785 GetRequests, 1602 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-11-16 12:50:26,399 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 7575 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 5230 mSolverCounterSat, 3724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7585 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 8954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3724 IncrementalHoareTripleChecker+Valid, 5230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:26,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7585 Valid, 1896 Invalid, 8954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3724 Valid, 5230 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 12:50:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-11-16 12:50:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3578. [2022-11-16 12:50:26,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3578 states, 2642 states have (on average 1.4053747161241483) internal successors, (3713), 3409 states have internal predecessors, (3713), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-11-16 12:50:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 5405 transitions. [2022-11-16 12:50:26,781 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 5405 transitions. Word has length 848 [2022-11-16 12:50:26,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:26,782 INFO L495 AbstractCegarLoop]: Abstraction has 3578 states and 5405 transitions. [2022-11-16 12:50:26,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-16 12:50:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 5405 transitions. [2022-11-16 12:50:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1137 [2022-11-16 12:50:26,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:26,809 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:26,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:27,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:27,023 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:50:27,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:27,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1759453905, now seen corresponding path program 3 times [2022-11-16 12:50:27,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:27,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324203730] [2022-11-16 12:50:27,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:27,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:28,156 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:50:28,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69430506] [2022-11-16 12:50:28,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:50:28,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:28,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:28,162 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:28,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-16 12:50:38,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:50:38,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:50:38,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:50:38,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 15028 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 14576 trivial. 0 not checked. [2022-11-16 12:50:38,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:50:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324203730] [2022-11-16 12:50:38,225 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:50:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69430506] [2022-11-16 12:50:38,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69430506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:38,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:38,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:50:38,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848629550] [2022-11-16 12:50:38,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:38,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:50:38,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:38,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:50:38,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:50:38,228 INFO L87 Difference]: Start difference. First operand 3578 states and 5405 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:50:39,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:39,231 INFO L93 Difference]: Finished difference Result 6453 states and 9891 transitions. [2022-11-16 12:50:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:50:39,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1136 [2022-11-16 12:50:39,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:39,270 INFO L225 Difference]: With dead ends: 6453 [2022-11-16 12:50:39,270 INFO L226 Difference]: Without dead ends: 6452 [2022-11-16 12:50:39,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 1135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:50:39,274 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 195 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:39,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 404 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:50:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6452 states. [2022-11-16 12:50:40,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6452 to 5989. [2022-11-16 12:50:40,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5989 states, 4349 states have (on average 1.4532076339388365) internal successors, (6320), 5641 states have internal predecessors, (6320), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-11-16 12:50:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 9242 transitions. [2022-11-16 12:50:40,188 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 9242 transitions. Word has length 1136 [2022-11-16 12:50:40,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:40,190 INFO L495 AbstractCegarLoop]: Abstraction has 5989 states and 9242 transitions. [2022-11-16 12:50:40,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 12:50:40,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 9242 transitions. [2022-11-16 12:50:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1139 [2022-11-16 12:50:40,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:40,223 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:40,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:40,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:40,445 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:50:40,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:40,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1312785231, now seen corresponding path program 1 times [2022-11-16 12:50:40,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:40,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858247115] [2022-11-16 12:50:40,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:40,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:41,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:50:41,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398653850] [2022-11-16 12:50:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:41,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:41,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:41,656 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:41,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-16 12:50:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:55,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 15819 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-16 12:50:55,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 0 proven. 12424 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:50:59,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:51:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 0 proven. 8284 refuted. 0 times theorem prover too weak. 6701 trivial. 0 not checked. [2022-11-16 12:51:09,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:51:09,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858247115] [2022-11-16 12:51:09,285 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:51:09,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398653850] [2022-11-16 12:51:09,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398653850] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:51:09,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:51:09,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-11-16 12:51:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893142969] [2022-11-16 12:51:09,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:51:09,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-16 12:51:09,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:51:09,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-16 12:51:09,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-16 12:51:09,304 INFO L87 Difference]: Start difference. First operand 5989 states and 9242 transitions. Second operand has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-11-16 12:51:58,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:51:58,574 INFO L93 Difference]: Finished difference Result 11421 states and 18006 transitions. [2022-11-16 12:51:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-11-16 12:51:58,575 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1138 [2022-11-16 12:51:58,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:51:58,650 INFO L225 Difference]: With dead ends: 11421 [2022-11-16 12:51:58,650 INFO L226 Difference]: Without dead ends: 11420 [2022-11-16 12:51:58,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2461 GetRequests, 2086 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-11-16 12:51:58,672 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 17232 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 12020 mSolverCounterSat, 9018 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17242 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 21038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9018 IncrementalHoareTripleChecker+Valid, 12020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:51:58,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17242 Valid, 3759 Invalid, 21038 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9018 Valid, 12020 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-11-16 12:51:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2022-11-16 12:52:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11365. [2022-11-16 12:52:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11365 states, 7997 states have (on average 1.4865574590471426) internal successors, (11888), 10681 states have internal predecessors, (11888), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-11-16 12:52:00,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11365 states to 11365 states and 17882 transitions. [2022-11-16 12:52:00,222 INFO L78 Accepts]: Start accepts. Automaton has 11365 states and 17882 transitions. Word has length 1138 [2022-11-16 12:52:00,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:52:00,224 INFO L495 AbstractCegarLoop]: Abstraction has 11365 states and 17882 transitions. [2022-11-16 12:52:00,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-11-16 12:52:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11365 states and 17882 transitions. [2022-11-16 12:52:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1715 [2022-11-16 12:52:00,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:52:00,299 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:52:00,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:00,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:52:00,527 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:52:00,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1490303665, now seen corresponding path program 2 times [2022-11-16 12:52:00,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:00,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914457214] [2022-11-16 12:52:00,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:00,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:02,164 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:52:02,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772325547] [2022-11-16 12:52:02,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:52:02,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:52:02,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:02,167 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:52:02,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-16 12:52:17,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:52:17,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:52:17,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 17547 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-16 12:52:17,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 55017 backedges. 0 proven. 52456 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-16 12:52:33,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:53:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 55017 backedges. 0 proven. 34972 refuted. 0 times theorem prover too weak. 20045 trivial. 0 not checked. [2022-11-16 12:53:09,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:09,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914457214] [2022-11-16 12:53:09,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:53:09,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772325547] [2022-11-16 12:53:09,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772325547] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:53:09,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:53:09,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 191] total 381 [2022-11-16 12:53:09,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694187830] [2022-11-16 12:53:09,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:53:09,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-16 12:53:09,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-16 12:53:09,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-16 12:53:09,184 INFO L87 Difference]: Start difference. First operand 11365 states and 17882 transitions. Second operand has 382 states, 381 states have (on average 4.601049868766404) internal successors, (1753), 382 states have internal predecessors, (1753), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-11-16 12:59:07,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:59:07,520 INFO L93 Difference]: Finished difference Result 22173 states and 35334 transitions. [2022-11-16 12:59:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 572 states. [2022-11-16 12:59:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 4.601049868766404) internal successors, (1753), 382 states have internal predecessors, (1753), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) Word has length 1714 [2022-11-16 12:59:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:59:07,633 INFO L225 Difference]: With dead ends: 22173 [2022-11-16 12:59:07,634 INFO L226 Difference]: Without dead ends: 22172 [2022-11-16 12:59:07,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3805 GetRequests, 3046 SyntacticMatches, 0 SemanticMatches, 759 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133579 ImplicationChecksByTransitivity, 119.3s TimeCoverageRelationStatistics Valid=181449, Invalid=396911, Unknown=0, NotChecked=0, Total=578360 [2022-11-16 12:59:07,711 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 36070 mSDsluCounter, 6413 mSDsCounter, 0 mSdLazyCounter, 28736 mSolverCounterSat, 20253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36080 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 48989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 20253 IncrementalHoareTripleChecker+Valid, 28736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:59:07,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36080 Valid, 6563 Invalid, 48989 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [20253 Valid, 28736 Invalid, 0 Unknown, 0 Unchecked, 31.5s Time] [2022-11-16 12:59:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2022-11-16 12:59:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 22117. [2022-11-16 12:59:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22117 states, 15293 states have (on average 1.505525403779507) internal successors, (23024), 20761 states have internal predecessors, (23024), 6064 states have call successors, (6064), 758 states have call predecessors, (6064), 759 states have return successors, (6074), 786 states have call predecessors, (6074), 6064 states have call successors, (6074) [2022-11-16 12:59:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22117 states to 22117 states and 35162 transitions. [2022-11-16 12:59:10,952 INFO L78 Accepts]: Start accepts. Automaton has 22117 states and 35162 transitions. Word has length 1714 [2022-11-16 12:59:10,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:59:10,954 INFO L495 AbstractCegarLoop]: Abstraction has 22117 states and 35162 transitions. [2022-11-16 12:59:10,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 4.601049868766404) internal successors, (1753), 382 states have internal predecessors, (1753), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-11-16 12:59:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 22117 states and 35162 transitions. [2022-11-16 12:59:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2867 [2022-11-16 12:59:11,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:59:11,116 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 190, 190, 188, 188, 188, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:59:11,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-16 12:59:11,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-16 12:59:11,331 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:59:11,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:59:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2041296561, now seen corresponding path program 3 times [2022-11-16 12:59:11,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:59:11,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426210991] [2022-11-16 12:59:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:59:12,453 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:59:12,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86986483] [2022-11-16 12:59:12,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:59:12,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:59:12,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:59:12,459 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:59:12,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-16 12:59:27,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:59:27,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:59:27,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:59:27,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:59:27,540 INFO L134 CoverageAnalysis]: Checked inductivity of 218025 backedges. 1893 proven. 0 refuted. 0 times theorem prover too weak. 216132 trivial. 0 not checked. [2022-11-16 12:59:27,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:59:27,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:59:27,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426210991] [2022-11-16 12:59:27,541 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:59:27,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86986483] [2022-11-16 12:59:27,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86986483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:59:27,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:59:27,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:59:27,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917586144] [2022-11-16 12:59:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:59:27,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:59:27,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:59:27,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:59:27,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:59:27,546 INFO L87 Difference]: Start difference. First operand 22117 states and 35162 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 12:59:32,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:59:32,850 INFO L93 Difference]: Finished difference Result 45071 states and 70895 transitions. [2022-11-16 12:59:32,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:59:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 2866 [2022-11-16 12:59:32,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:59:33,031 INFO L225 Difference]: With dead ends: 45071 [2022-11-16 12:59:33,031 INFO L226 Difference]: Without dead ends: 45070 [2022-11-16 12:59:33,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2874 GetRequests, 2865 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:59:33,048 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 311 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:59:33,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 387 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:59:33,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45070 states. [2022-11-16 12:59:37,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45070 to 36605. [2022-11-16 12:59:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36605 states, 26031 states have (on average 1.5140409511736006) internal successors, (39412), 34118 states have internal predecessors, (39412), 9248 states have call successors, (9248), 1324 states have call predecessors, (9248), 1325 states have return successors, (9258), 1351 states have call predecessors, (9258), 9248 states have call successors, (9258) [2022-11-16 12:59:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36605 states to 36605 states and 57918 transitions. [2022-11-16 12:59:37,969 INFO L78 Accepts]: Start accepts. Automaton has 36605 states and 57918 transitions. Word has length 2866 [2022-11-16 12:59:37,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:59:37,972 INFO L495 AbstractCegarLoop]: Abstraction has 36605 states and 57918 transitions. [2022-11-16 12:59:37,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 12:59:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 36605 states and 57918 transitions. [2022-11-16 12:59:38,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2868 [2022-11-16 12:59:38,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:59:38,474 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 189, 189, 189, 189, 189, 189, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-11-16 12:59:38,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-11-16 12:59:38,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-16 12:59:38,699 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 12:59:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:59:38,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1234769975, now seen corresponding path program 1 times [2022-11-16 12:59:38,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:59:38,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321977296] [2022-11-16 12:59:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:38,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:59:40,264 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:59:40,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506539888] [2022-11-16 12:59:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:59:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:59:40,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:59:40,266 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:59:40,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b9d1bf-15df-4686-8b81-46ef0948dc6d/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-16 12:59:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:59:59,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 21006 conjuncts, 383 conjunts are in the unsatisfiable core [2022-11-16 12:59:59,783 INFO L286 TraceCheckSpWp]: Computing forward predicates...