./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8 --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 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 --- 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-2329fc7 [2022-12-13 14:29:02,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:29:02,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:29:02,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:29:02,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:29:02,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:29:02,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:29:02,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:29:02,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:29:02,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:29:02,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:29:02,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:29:02,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:29:02,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:29:02,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:29:02,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:29:02,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:29:02,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:29:02,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:29:02,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:29:02,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:29:02,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:29:02,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:29:02,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:29:02,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:29:02,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:29:02,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:29:02,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:29:02,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:29:02,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:29:02,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:29:02,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:29:02,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:29:02,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:29:02,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:29:02,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:29:02,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:29:02,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:29:02,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:29:02,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:29:02,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:29:02,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:29:02,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:29:02,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:29:02,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:29:02,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:29:02,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:29:02,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:29:02,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:29:02,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:29:02,802 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:29:02,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:29:02,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:29:02,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:29:02,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:29:02,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:29:02,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:29:02,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:29:02,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:29:02,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:29:02,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:29:02,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:29:02,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:29:02,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:29:02,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:29:02,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:29:02,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:29:02,806 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 [2022-12-13 14:29:02,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:29:03,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:29:03,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:29:03,015 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:29:03,015 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:29:03,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2022-12-13 14:29:05,499 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:29:05,701 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:29:05,702 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2022-12-13 14:29:05,711 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/data/4270de705/8663b154ca094f80862303273c6e8f2c/FLAG8d96e8368 [2022-12-13 14:29:06,073 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/data/4270de705/8663b154ca094f80862303273c6e8f2c [2022-12-13 14:29:06,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:29:06,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:29:06,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:29:06,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:29:06,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:29:06,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6f4564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06, skipping insertion in model container [2022-12-13 14:29:06,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:29:06,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:29:06,389 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-12-13 14:29:06,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:29:06,468 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:29:06,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2022-12-13 14:29:06,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:29:06,573 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:29:06,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06 WrapperNode [2022-12-13 14:29:06,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:29:06,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:29:06,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:29:06,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:29:06,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,625 INFO L138 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 623 [2022-12-13 14:29:06,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:29:06,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:29:06,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:29:06,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:29:06,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:29:06,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:29:06,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:29:06,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:29:06,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (1/1) ... [2022-12-13 14:29:06,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:29:06,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:06,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:29:06,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:29:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:29:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 14:29:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 14:29:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 14:29:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:29:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:29:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:29:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:29:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:29:06,880 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:29:06,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:29:07,630 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:29:07,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:29:07,637 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-12-13 14:29:07,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:29:07 BoogieIcfgContainer [2022-12-13 14:29:07,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:29:07,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:29:07,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:29:07,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:29:07,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:29:06" (1/3) ... [2022-12-13 14:29:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b99408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:29:07, skipping insertion in model container [2022-12-13 14:29:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:29:06" (2/3) ... [2022-12-13 14:29:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b99408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:29:07, skipping insertion in model container [2022-12-13 14:29:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:29:07" (3/3) ... [2022-12-13 14:29:07,648 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-1.i [2022-12-13 14:29:07,666 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:29:07,666 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 14:29:07,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:29:07,721 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;@3e6f427c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:29:07,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 14:29:07,725 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) [2022-12-13 14:29:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 14:29:07,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:07,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:29:07,732 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)] === [2022-12-13 14:29:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-12-13 14:29:07,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:07,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814182145] [2022-12-13 14:29:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:07,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:07,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:07,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814182145] [2022-12-13 14:29:07,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814182145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:07,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:07,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:29:07,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116583155] [2022-12-13 14:29:07,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:07,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:29:07,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:29:07,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:29:07,929 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) [2022-12-13 14:29:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:07,996 INFO L93 Difference]: Finished difference Result 360 states and 598 transitions. [2022-12-13 14:29:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:29:07,998 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 [2022-12-13 14:29:07,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:08,008 INFO L225 Difference]: With dead ends: 360 [2022-12-13 14:29:08,008 INFO L226 Difference]: Without dead ends: 222 [2022-12-13 14:29:08,011 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 [2022-12-13 14:29:08,014 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 [2022-12-13 14:29:08,015 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] [2022-12-13 14:29:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-12-13 14:29:08,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 136. [2022-12-13 14:29:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 130 states have internal predecessors, (156), 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) [2022-12-13 14:29:08,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-12-13 14:29:08,061 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 6 [2022-12-13 14:29:08,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:08,061 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-12-13 14:29:08,061 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) [2022-12-13 14:29:08,061 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-12-13 14:29:08,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 14:29:08,063 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:08,064 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] [2022-12-13 14:29:08,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:29:08,064 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)] === [2022-12-13 14:29:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:08,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1053673023, now seen corresponding path program 1 times [2022-12-13 14:29:08,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888339608] [2022-12-13 14:29:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:08,182 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:08,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770514793] [2022-12-13 14:29:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:08,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:08,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:08,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:08,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:29:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:08,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:29:08,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:08,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:29:08,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:08,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888339608] [2022-12-13 14:29:08,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:08,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770514793] [2022-12-13 14:29:08,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770514793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:08,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:08,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:29:08,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976473583] [2022-12-13 14:29:08,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:08,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:29:08,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:29:08,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:29:08,662 INFO L87 Difference]: Start difference. First operand 136 states and 182 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) [2022-12-13 14:29:08,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:08,746 INFO L93 Difference]: Finished difference Result 286 states and 388 transitions. [2022-12-13 14:29:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:29:08,746 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 [2022-12-13 14:29:08,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:08,748 INFO L225 Difference]: With dead ends: 286 [2022-12-13 14:29:08,748 INFO L226 Difference]: Without dead ends: 157 [2022-12-13 14:29:08,749 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 [2022-12-13 14:29:08,751 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 9 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-12-13 14:29:08,751 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] [2022-12-13 14:29:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-13 14:29:08,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2022-12-13 14:29:08,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 136 states have (on average 1.2941176470588236) internal successors, (176), 150 states have internal predecessors, (176), 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) [2022-12-13 14:29:08,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2022-12-13 14:29:08,766 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 56 [2022-12-13 14:29:08,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:08,767 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2022-12-13 14:29:08,767 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) [2022-12-13 14:29:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2022-12-13 14:29:08,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 14:29:08,769 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:08,769 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] [2022-12-13 14:29:08,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:29:08,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:08,970 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)] === [2022-12-13 14:29:08,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash 778913409, now seen corresponding path program 1 times [2022-12-13 14:29:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:08,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125353715] [2022-12-13 14:29:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:09,180 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:09,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527071970] [2022-12-13 14:29:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:09,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:09,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:09,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:09,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:29:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:09,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:29:09,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:09,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:29:09,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:09,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125353715] [2022-12-13 14:29:09,710 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:09,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527071970] [2022-12-13 14:29:09,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527071970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:09,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:09,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:29:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545822107] [2022-12-13 14:29:09,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:09,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:29:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:29:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:29:09,713 INFO L87 Difference]: Start difference. First operand 156 states and 202 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) [2022-12-13 14:29:09,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:09,765 INFO L93 Difference]: Finished difference Result 295 states and 387 transitions. [2022-12-13 14:29:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:29:09,766 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 [2022-12-13 14:29:09,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:09,766 INFO L225 Difference]: With dead ends: 295 [2022-12-13 14:29:09,766 INFO L226 Difference]: Without dead ends: 146 [2022-12-13 14:29:09,767 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 [2022-12-13 14:29:09,768 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 139 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:09,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 333 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:29:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-13 14:29:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2022-12-13 14:29:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 136 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) [2022-12-13 14:29:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 181 transitions. [2022-12-13 14:29:09,776 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 181 transitions. Word has length 56 [2022-12-13 14:29:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:09,776 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 181 transitions. [2022-12-13 14:29:09,776 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) [2022-12-13 14:29:09,776 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 181 transitions. [2022-12-13 14:29:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 14:29:09,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:09,777 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] [2022-12-13 14:29:09,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:29:09,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:09,979 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)] === [2022-12-13 14:29:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:09,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1492117709, now seen corresponding path program 1 times [2022-12-13 14:29:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:09,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528130715] [2022-12-13 14:29:09,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:09,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:10,171 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:10,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488291209] [2022-12-13 14:29:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:10,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:10,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:10,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:10,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:29:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:10,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:29:10,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:10,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:29:10,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:10,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528130715] [2022-12-13 14:29:10,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:10,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488291209] [2022-12-13 14:29:10,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488291209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:10,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:10,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:29:10,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156786400] [2022-12-13 14:29:10,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:10,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:29:10,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:10,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:29:10,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:29:10,745 INFO L87 Difference]: Start difference. First operand 142 states and 181 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) [2022-12-13 14:29:10,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:10,774 INFO L93 Difference]: Finished difference Result 142 states and 181 transitions. [2022-12-13 14:29:10,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:29:10,774 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 [2022-12-13 14:29:10,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:10,776 INFO L225 Difference]: With dead ends: 142 [2022-12-13 14:29:10,776 INFO L226 Difference]: Without dead ends: 141 [2022-12-13 14:29:10,776 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 [2022-12-13 14:29:10,777 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 83 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 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 [2022-12-13 14:29:10,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:29:10,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-13 14:29:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-12-13 14:29:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 122 states have (on average 1.2622950819672132) 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) [2022-12-13 14:29:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 180 transitions. [2022-12-13 14:29:10,790 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 180 transitions. Word has length 56 [2022-12-13 14:29:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:10,790 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 180 transitions. [2022-12-13 14:29:10,790 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) [2022-12-13 14:29:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 180 transitions. [2022-12-13 14:29:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-13 14:29:10,792 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:10,792 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] [2022-12-13 14:29:10,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:29:10,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:10,993 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)] === [2022-12-13 14:29:10,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:10,994 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-12-13 14:29:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:10,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6282597] [2022-12-13 14:29:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:11,100 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:11,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23317427] [2022-12-13 14:29:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:11,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:11,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:11,101 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:11,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:29:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:11,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:29:11,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:11,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:29:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6282597] [2022-12-13 14:29:11,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:11,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23317427] [2022-12-13 14:29:11,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23317427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:11,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:11,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:29:11,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429678141] [2022-12-13 14:29:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:11,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:29:11,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:29:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:29:11,706 INFO L87 Difference]: Start difference. First operand 141 states and 180 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) [2022-12-13 14:29:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:11,743 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2022-12-13 14:29:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:29:11,743 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 [2022-12-13 14:29:11,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:11,746 INFO L225 Difference]: With dead ends: 232 [2022-12-13 14:29:11,746 INFO L226 Difference]: Without dead ends: 231 [2022-12-13 14:29:11,746 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 [2022-12-13 14:29:11,747 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 49 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:11,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 540 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:29:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-13 14:29:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-12-13 14:29:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 209 states have (on average 1.229665071770335) 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) [2022-12-13 14:29:11,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2022-12-13 14:29:11,758 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 57 [2022-12-13 14:29:11,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:11,759 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2022-12-13 14:29:11,759 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) [2022-12-13 14:29:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2022-12-13 14:29:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 14:29:11,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:11,760 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] [2022-12-13 14:29:11,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 14:29:11,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:11,962 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)] === [2022-12-13 14:29:11,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -268562827, now seen corresponding path program 1 times [2022-12-13 14:29:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:11,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126330905] [2022-12-13 14:29:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:11,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:12,061 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232473125] [2022-12-13 14:29:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:12,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:12,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:12,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:12,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 14:29:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:12,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:29:12,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:12,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:29:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:12,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:12,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126330905] [2022-12-13 14:29:12,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:12,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232473125] [2022-12-13 14:29:12,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232473125] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:29:12,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:29:12,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 14:29:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78647736] [2022-12-13 14:29:12,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:29:12,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:29:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:29:12,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:29:12,686 INFO L87 Difference]: Start difference. First operand 231 states and 289 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) [2022-12-13 14:29:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:12,768 INFO L93 Difference]: Finished difference Result 361 states and 460 transitions. [2022-12-13 14:29:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:29:12,769 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 [2022-12-13 14:29:12,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:12,771 INFO L225 Difference]: With dead ends: 361 [2022-12-13 14:29:12,771 INFO L226 Difference]: Without dead ends: 327 [2022-12-13 14:29:12,771 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 [2022-12-13 14:29:12,772 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 351 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:12,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 809 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:29:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-12-13 14:29:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-12-13 14:29:12,789 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) [2022-12-13 14:29:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2022-12-13 14:29:12,791 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 61 [2022-12-13 14:29:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:12,791 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2022-12-13 14:29:12,791 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) [2022-12-13 14:29:12,792 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2022-12-13 14:29:12,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 14:29:12,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:12,793 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 14:29:12,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 14:29:12,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:12,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:29:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash 255277007, now seen corresponding path program 1 times [2022-12-13 14:29:12,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:12,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315829610] [2022-12-13 14:29:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:12,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:13,107 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:13,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219085921] [2022-12-13 14:29:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:13,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:13,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:13,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:13,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 14:29:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:13,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:29:13,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:13,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:29:13,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:13,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315829610] [2022-12-13 14:29:13,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:13,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219085921] [2022-12-13 14:29:13,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219085921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:13,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:13,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:29:13,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724218719] [2022-12-13 14:29:13,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:13,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:29:13,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:13,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:29:13,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:29:13,790 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-12-13 14:29:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:13,828 INFO L93 Difference]: Finished difference Result 594 states and 742 transitions. [2022-12-13 14:29:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:29:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2022-12-13 14:29:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:13,830 INFO L225 Difference]: With dead ends: 594 [2022-12-13 14:29:13,830 INFO L226 Difference]: Without dead ends: 325 [2022-12-13 14:29:13,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:29:13,831 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 [2022-12-13 14:29:13,831 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] [2022-12-13 14:29:13,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-12-13 14:29:13,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-12-13 14:29:13,839 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) [2022-12-13 14:29:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 402 transitions. [2022-12-13 14:29:13,840 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 402 transitions. Word has length 62 [2022-12-13 14:29:13,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:13,840 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 402 transitions. [2022-12-13 14:29:13,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-12-13 14:29:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 402 transitions. [2022-12-13 14:29:13,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 14:29:13,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:13,841 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] [2022-12-13 14:29:13,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 14:29:14,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:14,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:29:14,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash -475087376, now seen corresponding path program 1 times [2022-12-13 14:29:14,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:14,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141291474] [2022-12-13 14:29:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:14,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:14,115 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:14,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72948656] [2022-12-13 14:29:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:14,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:14,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:14,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:14,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 14:29:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:16,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:29:16,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:29:16,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:29:16,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:16,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141291474] [2022-12-13 14:29:16,270 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:16,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72948656] [2022-12-13 14:29:16,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72948656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:29:16,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:29:16,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:29:16,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932345721] [2022-12-13 14:29:16,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:16,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:29:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:29:16,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:29:16,271 INFO L87 Difference]: Start difference. First operand 325 states and 402 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:29:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:16,295 INFO L93 Difference]: Finished difference Result 601 states and 758 transitions. [2022-12-13 14:29:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:29:16,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2022-12-13 14:29:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:16,296 INFO L225 Difference]: With dead ends: 601 [2022-12-13 14:29:16,296 INFO L226 Difference]: Without dead ends: 328 [2022-12-13 14:29:16,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:29:16,297 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 [2022-12-13 14:29:16,297 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] [2022-12-13 14:29:16,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-12-13 14:29:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-12-13 14:29:16,306 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) [2022-12-13 14:29:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 408 transitions. [2022-12-13 14:29:16,307 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 408 transitions. Word has length 77 [2022-12-13 14:29:16,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:16,307 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 408 transitions. [2022-12-13 14:29:16,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:29:16,307 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 408 transitions. [2022-12-13 14:29:16,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 14:29:16,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:16,308 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-13 14:29:16,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 14:29:16,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 14:29:16,510 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:29:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1644071890, now seen corresponding path program 1 times [2022-12-13 14:29:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:16,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238741296] [2022-12-13 14:29:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:16,582 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:16,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752009772] [2022-12-13 14:29:16,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:16,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:16,583 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:16,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 14:29:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:43,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:29:43,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 14:29:43,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:29:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:29:43,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:43,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238741296] [2022-12-13 14:29:43,976 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:43,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752009772] [2022-12-13 14:29:43,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752009772] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:29:43,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:29:43,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 14:29:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012394673] [2022-12-13 14:29:43,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:29:43,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:29:43,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:43,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:29:43,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:29:43,978 INFO L87 Difference]: Start difference. First operand 328 states and 408 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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) [2022-12-13 14:29:44,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:44,083 INFO L93 Difference]: Finished difference Result 615 states and 785 transitions. [2022-12-13 14:29:44,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:29:44,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 79 [2022-12-13 14:29:44,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:44,086 INFO L225 Difference]: With dead ends: 615 [2022-12-13 14:29:44,086 INFO L226 Difference]: Without dead ends: 339 [2022-12-13 14:29:44,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:29:44,087 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:44,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 820 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:29:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-12-13 14:29:44,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-12-13 14:29:44,101 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) [2022-12-13 14:29:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 422 transitions. [2022-12-13 14:29:44,103 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 422 transitions. Word has length 79 [2022-12-13 14:29:44,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:44,103 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 422 transitions. [2022-12-13 14:29:44,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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) [2022-12-13 14:29:44,104 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 422 transitions. [2022-12-13 14:29:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-13 14:29:44,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:44,105 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-12-13 14:29:44,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 14:29:44,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:44,306 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:29:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:44,306 INFO L85 PathProgramCache]: Analyzing trace with hash 230004592, now seen corresponding path program 2 times [2022-12-13 14:29:44,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:44,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940341924] [2022-12-13 14:29:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:44,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:44,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:44,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099450263] [2022-12-13 14:29:44,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:29:44,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:44,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:44,347 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 14:29:45,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:29:45,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:29:45,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 14:29:45,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:45,175 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 14:29:45,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:29:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 14:29:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:45,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940341924] [2022-12-13 14:29:45,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:45,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099450263] [2022-12-13 14:29:45,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099450263] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:29:45,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:29:45,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2022-12-13 14:29:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208862825] [2022-12-13 14:29:45,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:29:45,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 14:29:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 14:29:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:29:45,317 INFO L87 Difference]: Start difference. First operand 337 states and 422 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2022-12-13 14:29:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:45,630 INFO L93 Difference]: Finished difference Result 674 states and 875 transitions. [2022-12-13 14:29:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 14:29:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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 83 [2022-12-13 14:29:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:45,632 INFO L225 Difference]: With dead ends: 674 [2022-12-13 14:29:45,632 INFO L226 Difference]: Without dead ends: 343 [2022-12-13 14:29:45,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2022-12-13 14:29:45,633 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 156 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:45,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 677 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:29:45,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-12-13 14:29:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 334. [2022-12-13 14:29:45,643 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) [2022-12-13 14:29:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 418 transitions. [2022-12-13 14:29:45,644 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 418 transitions. Word has length 83 [2022-12-13 14:29:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:45,645 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 418 transitions. [2022-12-13 14:29:45,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2022-12-13 14:29:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 418 transitions. [2022-12-13 14:29:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 14:29:45,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:45,645 INFO L195 NwaCegarLoop]: trace histogram [12, 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] [2022-12-13 14:29:45,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 14:29:45,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 14:29:45,847 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:29:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:45,848 INFO L85 PathProgramCache]: Analyzing trace with hash -52287120, now seen corresponding path program 3 times [2022-12-13 14:29:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:45,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492528755] [2022-12-13 14:29:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:46,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:46,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726975269] [2022-12-13 14:29:46,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:29:46,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:46,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:46,032 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:46,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 14:29:53,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 14:29:53,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:29:53,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 14:29:53,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:53,688 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 [2022-12-13 14:29:53,706 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 [2022-12-13 14:29:53,768 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:29:53,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:29:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:29:54,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492528755] [2022-12-13 14:29:54,090 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726975269] [2022-12-13 14:29:54,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726975269] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 14:29:54,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:29:54,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-12-13 14:29:54,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4963520] [2022-12-13 14:29:54,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:29:54,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:29:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:54,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:29:54,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:29:54,092 INFO L87 Difference]: Start difference. First operand 334 states and 418 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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) [2022-12-13 14:29:54,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:54,168 INFO L93 Difference]: Finished difference Result 334 states and 418 transitions. [2022-12-13 14:29:54,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:29:54,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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 89 [2022-12-13 14:29:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:54,171 INFO L225 Difference]: With dead ends: 334 [2022-12-13 14:29:54,171 INFO L226 Difference]: Without dead ends: 333 [2022-12-13 14:29:54,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:29:54,172 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 290 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:54,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 359 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:29:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-12-13 14:29:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-12-13 14:29:54,183 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) [2022-12-13 14:29:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 416 transitions. [2022-12-13 14:29:54,184 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 416 transitions. Word has length 89 [2022-12-13 14:29:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:54,184 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 416 transitions. [2022-12-13 14:29:54,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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) [2022-12-13 14:29:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 416 transitions. [2022-12-13 14:29:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-13 14:29:54,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:54,186 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:29:54,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 14:29:54,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:54,387 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:29:54,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:54,387 INFO L85 PathProgramCache]: Analyzing trace with hash 817185700, now seen corresponding path program 1 times [2022-12-13 14:29:54,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:54,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964265834] [2022-12-13 14:29:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:54,526 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:54,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548719221] [2022-12-13 14:29:54,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:54,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:54,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:54,527 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:54,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 14:29:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:55,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 3781 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:29:55,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:29:55,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:29:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:29:55,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:55,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964265834] [2022-12-13 14:29:55,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:55,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548719221] [2022-12-13 14:29:55,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548719221] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:29:55,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:29:55,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-12-13 14:29:55,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210296654] [2022-12-13 14:29:55,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:29:55,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 14:29:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:55,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 14:29:55,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:29:55,929 INFO L87 Difference]: Start difference. First operand 333 states and 416 transitions. Second operand has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 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) [2022-12-13 14:29:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:56,071 INFO L93 Difference]: Finished difference Result 454 states and 578 transitions. [2022-12-13 14:29:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:29:56,072 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 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 194 [2022-12-13 14:29:56,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:56,076 INFO L225 Difference]: With dead ends: 454 [2022-12-13 14:29:56,076 INFO L226 Difference]: Without dead ends: 453 [2022-12-13 14:29:56,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-12-13 14:29:56,077 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 427 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:56,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1005 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:29:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-12-13 14:29:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 332. [2022-12-13 14:29:56,100 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) [2022-12-13 14:29:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 415 transitions. [2022-12-13 14:29:56,102 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 415 transitions. Word has length 194 [2022-12-13 14:29:56,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:56,103 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 415 transitions. [2022-12-13 14:29:56,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 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) [2022-12-13 14:29:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 415 transitions. [2022-12-13 14:29:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-13 14:29:56,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:56,106 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] [2022-12-13 14:29:56,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 14:29:56,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:56,307 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)] === [2022-12-13 14:29:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:56,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2021787180, now seen corresponding path program 1 times [2022-12-13 14:29:56,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:56,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575944607] [2022-12-13 14:29:56,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:56,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:56,498 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:56,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548331530] [2022-12-13 14:29:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:56,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:56,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:56,499 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:56,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 14:29:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:29:57,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:29:57,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:29:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:29:57,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:29:58,128 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:29:58,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:29:58,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575944607] [2022-12-13 14:29:58,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:29:58,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548331530] [2022-12-13 14:29:58,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548331530] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:29:58,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:29:58,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-12-13 14:29:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997192504] [2022-12-13 14:29:58,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:29:58,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 14:29:58,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:29:58,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 14:29:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:29:58,132 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) [2022-12-13 14:29:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:29:58,302 INFO L93 Difference]: Finished difference Result 733 states and 915 transitions. [2022-12-13 14:29:58,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:29:58,303 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 [2022-12-13 14:29:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:29:58,307 INFO L225 Difference]: With dead ends: 733 [2022-12-13 14:29:58,308 INFO L226 Difference]: Without dead ends: 700 [2022-12-13 14:29:58,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:29:58,308 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 530 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:29:58,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1523 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:29:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-12-13 14:29:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-12-13 14:29:58,330 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) [2022-12-13 14:29:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 859 transitions. [2022-12-13 14:29:58,332 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 859 transitions. Word has length 198 [2022-12-13 14:29:58,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:29:58,333 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 859 transitions. [2022-12-13 14:29:58,333 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) [2022-12-13 14:29:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 859 transitions. [2022-12-13 14:29:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-12-13 14:29:58,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:29:58,337 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] [2022-12-13 14:29:58,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-13 14:29:58,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 14:29:58,538 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)] === [2022-12-13 14:29:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:29:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1398619156, now seen corresponding path program 2 times [2022-12-13 14:29:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:29:58,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126994356] [2022-12-13 14:29:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:29:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:29:58,968 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:29:58,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418065404] [2022-12-13 14:29:58,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:29:58,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:29:58,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:29:58,969 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:29:58,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 14:30:00,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 14:30:00,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:30:00,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:30:00,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-12-13 14:30:00,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:30:00,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:00,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126994356] [2022-12-13 14:30:00,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:00,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418065404] [2022-12-13 14:30:00,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418065404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:30:00,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:30:00,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:30:00,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201385566] [2022-12-13 14:30:00,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:30:00,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:30:00,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:00,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:30:00,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:30:00,643 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) [2022-12-13 14:30:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:00,694 INFO L93 Difference]: Finished difference Result 700 states and 859 transitions. [2022-12-13 14:30:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:30:00,694 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 [2022-12-13 14:30:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:00,697 INFO L225 Difference]: With dead ends: 700 [2022-12-13 14:30:00,697 INFO L226 Difference]: Without dead ends: 699 [2022-12-13 14:30:00,697 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 [2022-12-13 14:30:00,697 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 99 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 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 [2022-12-13 14:30:00,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 266 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:30:00,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-12-13 14:30:00,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2022-12-13 14:30:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 663 states have (on average 1.1900452488687783) internal successors, (789), 674 states have internal predecessors, (789), 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) [2022-12-13 14:30:00,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 858 transitions. [2022-12-13 14:30:00,724 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 858 transitions. Word has length 418 [2022-12-13 14:30:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:00,725 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 858 transitions. [2022-12-13 14:30:00,725 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) [2022-12-13 14:30:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 858 transitions. [2022-12-13 14:30:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-12-13 14:30:00,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:00,730 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] [2022-12-13 14:30:00,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 14:30:00,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 14:30:00,931 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)] === [2022-12-13 14:30:00,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:00,931 INFO L85 PathProgramCache]: Analyzing trace with hash 407521300, now seen corresponding path program 1 times [2022-12-13 14:30:00,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:00,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706674789] [2022-12-13 14:30:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:00,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:01,374 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:01,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116745529] [2022-12-13 14:30:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:01,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:01,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:01,376 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:01,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 14:30:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:30:04,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 9721 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 14:30:04,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:30:04,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:30:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-12-13 14:30:05,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:05,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706674789] [2022-12-13 14:30:05,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:05,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116745529] [2022-12-13 14:30:05,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116745529] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:30:05,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:30:05,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-12-13 14:30:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495328955] [2022-12-13 14:30:05,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:30:05,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 14:30:05,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 14:30:05,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:30:05,231 INFO L87 Difference]: Start difference. First operand 699 states and 858 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) [2022-12-13 14:30:05,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:05,491 INFO L93 Difference]: Finished difference Result 1007 states and 1245 transitions. [2022-12-13 14:30:05,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 14:30:05,491 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 [2022-12-13 14:30:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:05,496 INFO L225 Difference]: With dead ends: 1007 [2022-12-13 14:30:05,496 INFO L226 Difference]: Without dead ends: 975 [2022-12-13 14:30:05,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 806 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-12-13 14:30:05,497 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 744 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:05,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 2153 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:30:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-12-13 14:30:05,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-12-13 14:30:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 930 states have (on average 1.1838709677419355) internal successors, (1101), 941 states have internal predecessors, (1101), 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) [2022-12-13 14:30:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1191 transitions. [2022-12-13 14:30:05,527 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1191 transitions. Word has length 419 [2022-12-13 14:30:05,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:05,528 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1191 transitions. [2022-12-13 14:30:05,528 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) [2022-12-13 14:30:05,528 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1191 transitions. [2022-12-13 14:30:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-12-13 14:30:05,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:05,532 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] [2022-12-13 14:30:05,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 14:30:05,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 14:30:05,734 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)] === [2022-12-13 14:30:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:05,735 INFO L85 PathProgramCache]: Analyzing trace with hash 931954965, now seen corresponding path program 2 times [2022-12-13 14:30:05,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:05,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067939403] [2022-12-13 14:30:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:05,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:06,371 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:06,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382125834] [2022-12-13 14:30:06,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:30:06,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:06,372 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:06,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 14:30:08,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 14:30:08,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:30:08,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:30:08,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:30:09,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:30:09,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:09,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067939403] [2022-12-13 14:30:09,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:09,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382125834] [2022-12-13 14:30:09,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382125834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:30:09,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:30:09,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:30:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988818641] [2022-12-13 14:30:09,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:30:09,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:30:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:09,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:30:09,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:30:09,107 INFO L87 Difference]: Start difference. First operand 975 states and 1191 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) [2022-12-13 14:30:09,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:09,160 INFO L93 Difference]: Finished difference Result 1000 states and 1236 transitions. [2022-12-13 14:30:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:30:09,161 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 [2022-12-13 14:30:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:09,165 INFO L225 Difference]: With dead ends: 1000 [2022-12-13 14:30:09,165 INFO L226 Difference]: Without dead ends: 999 [2022-12-13 14:30:09,165 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 [2022-12-13 14:30:09,165 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 60 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:09,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 357 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:30:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-12-13 14:30:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 978. [2022-12-13 14:30:09,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 933 states have (on average 1.1832797427652733) 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) [2022-12-13 14:30:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1194 transitions. [2022-12-13 14:30:09,197 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1194 transitions. Word has length 584 [2022-12-13 14:30:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:09,197 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1194 transitions. [2022-12-13 14:30:09,197 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) [2022-12-13 14:30:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1194 transitions. [2022-12-13 14:30:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-12-13 14:30:09,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:09,202 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, 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] [2022-12-13 14:30:09,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 14:30:09,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 14:30:09,403 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:30:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:09,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1245606517, now seen corresponding path program 1 times [2022-12-13 14:30:09,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:09,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354911373] [2022-12-13 14:30:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:09,938 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:09,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934593658] [2022-12-13 14:30:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:09,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:09,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:09,939 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:09,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 14:30:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:30:14,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 14194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:30:14,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:30:14,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:30:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:30:15,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:15,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354911373] [2022-12-13 14:30:15,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:15,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934593658] [2022-12-13 14:30:15,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934593658] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:30:15,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:30:15,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-12-13 14:30:15,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579570750] [2022-12-13 14:30:15,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:30:15,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:30:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:30:15,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:30:15,334 INFO L87 Difference]: Start difference. First operand 978 states and 1194 transitions. Second operand has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 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) [2022-12-13 14:30:15,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:15,559 INFO L93 Difference]: Finished difference Result 1069 states and 1344 transitions. [2022-12-13 14:30:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 14:30:15,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 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 596 [2022-12-13 14:30:15,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:15,562 INFO L225 Difference]: With dead ends: 1069 [2022-12-13 14:30:15,563 INFO L226 Difference]: Without dead ends: 1068 [2022-12-13 14:30:15,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1182 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:30:15,563 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 324 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:15,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 538 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:30:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-12-13 14:30:15,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2022-12-13 14:30:15,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 990 states have (on average 1.2030303030303031) internal successors, (1191), 1031 states have internal predecessors, (1191), 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) [2022-12-13 14:30:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1341 transitions. [2022-12-13 14:30:15,600 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1341 transitions. Word has length 596 [2022-12-13 14:30:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:15,600 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1341 transitions. [2022-12-13 14:30:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 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) [2022-12-13 14:30:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1341 transitions. [2022-12-13 14:30:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-12-13 14:30:15,605 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:15,605 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, 5, 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] [2022-12-13 14:30:15,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 14:30:15,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:15,807 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:30:15,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:15,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1422268779, now seen corresponding path program 2 times [2022-12-13 14:30:15,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:15,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80961400] [2022-12-13 14:30:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:16,331 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:16,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237478257] [2022-12-13 14:30:16,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:30:16,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:16,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:16,332 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:16,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 14:30:21,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:30:21,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:30:21,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 14302 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 14:30:21,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:30:21,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:30:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked. [2022-12-13 14:30:22,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:22,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80961400] [2022-12-13 14:30:22,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:22,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237478257] [2022-12-13 14:30:22,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237478257] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:30:22,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:30:22,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-12-13 14:30:22,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114138450] [2022-12-13 14:30:22,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:30:22,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 14:30:22,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:22,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 14:30:22,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:30:22,456 INFO L87 Difference]: Start difference. First operand 1068 states and 1341 transitions. Second operand has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 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) [2022-12-13 14:30:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:23,296 INFO L93 Difference]: Finished difference Result 1249 states and 1641 transitions. [2022-12-13 14:30:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 14:30:23,296 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 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 632 [2022-12-13 14:30:23,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:23,299 INFO L225 Difference]: With dead ends: 1249 [2022-12-13 14:30:23,299 INFO L226 Difference]: Without dead ends: 1248 [2022-12-13 14:30:23,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 14:30:23,300 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1161 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:23,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 960 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:30:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-12-13 14:30:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2022-12-13 14:30:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1104 states have (on average 1.236413043478261) internal successors, (1365), 1205 states have internal predecessors, (1365), 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) [2022-12-13 14:30:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1635 transitions. [2022-12-13 14:30:23,352 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1635 transitions. Word has length 632 [2022-12-13 14:30:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:23,352 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1635 transitions. [2022-12-13 14:30:23,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 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) [2022-12-13 14:30:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1635 transitions. [2022-12-13 14:30:23,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-12-13 14:30:23,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:23,360 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 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, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:30:23,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 14:30:23,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 14:30:23,561 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:30:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash 262807253, now seen corresponding path program 3 times [2022-12-13 14:30:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:23,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614154423] [2022-12-13 14:30:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:23,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:24,231 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:24,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222289245] [2022-12-13 14:30:24,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:30:24,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:24,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:24,233 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:24,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 14:30:27,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 14:30:27,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:30:27,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:30:27,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3131 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-12-13 14:30:27,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:30:27,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:27,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614154423] [2022-12-13 14:30:27,939 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:27,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222289245] [2022-12-13 14:30:27,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222289245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:30:27,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:30:27,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:30:27,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719541030] [2022-12-13 14:30:27,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:30:27,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:30:27,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:30:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:30:27,940 INFO L87 Difference]: Start difference. First operand 1248 states and 1635 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 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) [2022-12-13 14:30:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:28,059 INFO L93 Difference]: Finished difference Result 1566 states and 2123 transitions. [2022-12-13 14:30:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:30:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 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 704 [2022-12-13 14:30:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:28,063 INFO L225 Difference]: With dead ends: 1566 [2022-12-13 14:30:28,064 INFO L226 Difference]: Without dead ends: 1565 [2022-12-13 14:30:28,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:30:28,065 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:28,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 351 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:30:28,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-12-13 14:30:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1491. [2022-12-13 14:30:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1275 states have (on average 1.275294117647059) internal successors, (1626), 1430 states have internal predecessors, (1626), 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) [2022-12-13 14:30:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2022 transitions. [2022-12-13 14:30:28,136 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2022 transitions. Word has length 704 [2022-12-13 14:30:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:28,137 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2022 transitions. [2022-12-13 14:30:28,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 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) [2022-12-13 14:30:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2022 transitions. [2022-12-13 14:30:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-12-13 14:30:28,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:28,205 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 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, 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] [2022-12-13 14:30:28,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 14:30:28,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:28,406 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:30:28,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:28,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1833507447, now seen corresponding path program 1 times [2022-12-13 14:30:28,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:28,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554299714] [2022-12-13 14:30:28,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:28,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:28,996 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:28,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210027785] [2022-12-13 14:30:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:28,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:28,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:28,997 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:28,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 14:30:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:30:34,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 14520 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 14:30:34,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:35,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:30:35,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:30:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-12-13 14:30:36,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:36,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554299714] [2022-12-13 14:30:36,421 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:36,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210027785] [2022-12-13 14:30:36,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210027785] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:30:36,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:30:36,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-12-13 14:30:36,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487072339] [2022-12-13 14:30:36,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:30:36,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-13 14:30:36,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:36,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-13 14:30:36,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-12-13 14:30:36,424 INFO L87 Difference]: Start difference. First operand 1491 states and 2022 transitions. Second operand has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 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) [2022-12-13 14:30:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:38,717 INFO L93 Difference]: Finished difference Result 2207 states and 3189 transitions. [2022-12-13 14:30:38,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-12-13 14:30:38,718 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 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 705 [2022-12-13 14:30:38,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:38,723 INFO L225 Difference]: With dead ends: 2207 [2022-12-13 14:30:38,723 INFO L226 Difference]: Without dead ends: 2206 [2022-12-13 14:30:38,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1364 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-12-13 14:30:38,726 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 3115 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 1642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3125 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1642 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:38,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3125 Valid, 1191 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1642 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 14:30:38,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-12-13 14:30:38,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2187. [2022-12-13 14:30:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1731 states have (on average 1.341421143847487) internal successors, (2322), 2090 states have internal predecessors, (2322), 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) [2022-12-13 14:30:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3150 transitions. [2022-12-13 14:30:38,842 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3150 transitions. Word has length 705 [2022-12-13 14:30:38,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:38,842 INFO L495 AbstractCegarLoop]: Abstraction has 2187 states and 3150 transitions. [2022-12-13 14:30:38,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 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) [2022-12-13 14:30:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3150 transitions. [2022-12-13 14:30:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2022-12-13 14:30:38,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:38,853 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 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] [2022-12-13 14:30:38,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-12-13 14:30:39,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:39,054 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:30:39,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:39,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1134986761, now seen corresponding path program 2 times [2022-12-13 14:30:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:39,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371551836] [2022-12-13 14:30:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:39,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:39,613 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:39,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991721280] [2022-12-13 14:30:39,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:30:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:39,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:39,614 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:39,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 14:30:46,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:30:46,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:30:46,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 14952 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 14:30:46,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:30:47,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 2817 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:30:47,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:30:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2022-12-13 14:30:49,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:30:49,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371551836] [2022-12-13 14:30:49,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:30:49,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991721280] [2022-12-13 14:30:49,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991721280] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:30:49,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:30:49,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-12-13 14:30:49,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59067418] [2022-12-13 14:30:49,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:30:49,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-12-13 14:30:49,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:30:49,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-12-13 14:30:49,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-12-13 14:30:49,547 INFO L87 Difference]: Start difference. First operand 2187 states and 3150 transitions. Second operand has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 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) [2022-12-13 14:30:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:30:56,869 INFO L93 Difference]: Finished difference Result 3599 states and 5457 transitions. [2022-12-13 14:30:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-12-13 14:30:56,870 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 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 849 [2022-12-13 14:30:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:30:56,880 INFO L225 Difference]: With dead ends: 3599 [2022-12-13 14:30:56,880 INFO L226 Difference]: Without dead ends: 3598 [2022-12-13 14:30:56,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1787 GetRequests, 1604 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-12-13 14:30:56,886 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 7853 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 4635 mSolverCounterSat, 4487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7863 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4487 IncrementalHoareTripleChecker+Valid, 4635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:30:56,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7863 Valid, 2095 Invalid, 9122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4487 Valid, 4635 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 14:30:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-12-13 14:30:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3579. [2022-12-13 14:30:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 2643 states have (on average 1.40522133938706) internal successors, (3714), 3410 states have internal predecessors, (3714), 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) [2022-12-13 14:30:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 5406 transitions. [2022-12-13 14:30:57,090 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 5406 transitions. Word has length 849 [2022-12-13 14:30:57,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:30:57,091 INFO L495 AbstractCegarLoop]: Abstraction has 3579 states and 5406 transitions. [2022-12-13 14:30:57,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 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) [2022-12-13 14:30:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 5406 transitions. [2022-12-13 14:30:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2022-12-13 14:30:57,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:30:57,107 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 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] [2022-12-13 14:30:57,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 14:30:57,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:57,308 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:30:57,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:30:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1291503369, now seen corresponding path program 3 times [2022-12-13 14:30:57,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:30:57,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410595636] [2022-12-13 14:30:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:30:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:30:57,928 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:30:57,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269401130] [2022-12-13 14:30:57,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:30:57,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:30:57,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:30:57,929 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:30:57,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 14:31:02,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 14:31:02,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:31:02,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:31:02,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:31:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 15074 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 14576 trivial. 0 not checked. [2022-12-13 14:31:02,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:31:02,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:02,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410595636] [2022-12-13 14:31:02,902 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:31:02,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269401130] [2022-12-13 14:31:02,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269401130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:02,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:02,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:31:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337445578] [2022-12-13 14:31:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:02,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:31:02,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:31:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:31:02,905 INFO L87 Difference]: Start difference. First operand 3579 states and 5406 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 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) [2022-12-13 14:31:03,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:03,533 INFO L93 Difference]: Finished difference Result 6455 states and 9893 transitions. [2022-12-13 14:31:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:31:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 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 1137 [2022-12-13 14:31:03,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:03,568 INFO L225 Difference]: With dead ends: 6455 [2022-12-13 14:31:03,568 INFO L226 Difference]: Without dead ends: 6454 [2022-12-13 14:31:03,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:31:03,571 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 187 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:03,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 404 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:31:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2022-12-13 14:31:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5990. [2022-12-13 14:31:04,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 4350 states have (on average 1.453103448275862) internal successors, (6321), 5642 states have internal predecessors, (6321), 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) [2022-12-13 14:31:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 9243 transitions. [2022-12-13 14:31:04,121 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 9243 transitions. Word has length 1137 [2022-12-13 14:31:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:04,122 INFO L495 AbstractCegarLoop]: Abstraction has 5990 states and 9243 transitions. [2022-12-13 14:31:04,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 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) [2022-12-13 14:31:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 9243 transitions. [2022-12-13 14:31:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-12-13 14:31:04,152 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:04,153 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 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] [2022-12-13 14:31:04,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 14:31:04,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 14:31:04,354 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:31:04,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2041636921, now seen corresponding path program 1 times [2022-12-13 14:31:04,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:04,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209725820] [2022-12-13 14:31:04,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:04,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:04,994 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:31:04,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296464188] [2022-12-13 14:31:04,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:04,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:31:04,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:31:04,995 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:31:04,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 14:31:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:11,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 15820 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-13 14:31:11,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:31:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 12470 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:31:14,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:31:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 6701 trivial. 0 not checked. [2022-12-13 14:31:19,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209725820] [2022-12-13 14:31:19,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:31:19,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296464188] [2022-12-13 14:31:19,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296464188] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:31:19,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:31:19,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-12-13 14:31:19,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400066202] [2022-12-13 14:31:19,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:31:19,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-12-13 14:31:19,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:19,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-12-13 14:31:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-12-13 14:31:19,939 INFO L87 Difference]: Start difference. First operand 5990 states and 9243 transitions. Second operand has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 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) [2022-12-13 14:31:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:52,429 INFO L93 Difference]: Finished difference Result 11421 states and 18006 transitions. [2022-12-13 14:31:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-12-13 14:31:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 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 1139 [2022-12-13 14:31:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:52,464 INFO L225 Difference]: With dead ends: 11421 [2022-12-13 14:31:52,464 INFO L226 Difference]: Without dead ends: 11420 [2022-12-13 14:31:52,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2463 GetRequests, 2088 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-12-13 14:31:52,497 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 16916 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 10775 mSolverCounterSat, 9842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16926 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 20617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9842 IncrementalHoareTripleChecker+Valid, 10775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:52,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16926 Valid, 3323 Invalid, 20617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9842 Valid, 10775 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-13 14:31:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2022-12-13 14:31:53,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11366. [2022-12-13 14:31:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11366 states, 7998 states have (on average 1.4864966241560391) internal successors, (11889), 10682 states have internal predecessors, (11889), 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) [2022-12-13 14:31:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11366 states to 11366 states and 17883 transitions. [2022-12-13 14:31:53,306 INFO L78 Accepts]: Start accepts. Automaton has 11366 states and 17883 transitions. Word has length 1139 [2022-12-13 14:31:53,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:53,307 INFO L495 AbstractCegarLoop]: Abstraction has 11366 states and 17883 transitions. [2022-12-13 14:31:53,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 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) [2022-12-13 14:31:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11366 states and 17883 transitions. [2022-12-13 14:31:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2022-12-13 14:31:53,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:53,346 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 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] [2022-12-13 14:31:53,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 14:31:53,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 14:31:53,547 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:31:53,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:53,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1045227065, now seen corresponding path program 2 times [2022-12-13 14:31:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:53,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681128743] [2022-12-13 14:31:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:53,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:54,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:31:54,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215326931] [2022-12-13 14:31:54,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:31:54,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:31:54,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:31:54,195 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:31:54,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 14:32:02,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:32:02,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:32:02,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 17548 conjuncts, 191 conjunts are in the unsatisfiable core [2022-12-13 14:32:02,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:32:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 52550 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:32:11,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:32:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 35066 refuted. 0 times theorem prover too weak. 20045 trivial. 0 not checked. [2022-12-13 14:32:29,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:32:29,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681128743] [2022-12-13 14:32:29,012 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:32:29,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215326931] [2022-12-13 14:32:29,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215326931] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:32:29,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:32:29,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 191] total 381 [2022-12-13 14:32:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088818036] [2022-12-13 14:32:29,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:32:29,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-12-13 14:32:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-12-13 14:32:29,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-12-13 14:32:29,027 INFO L87 Difference]: Start difference. First operand 11366 states and 17883 transitions. Second operand has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 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) [2022-12-13 14:36:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:36:38,460 INFO L93 Difference]: Finished difference Result 22173 states and 35334 transitions. [2022-12-13 14:36:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 572 states. [2022-12-13 14:36:38,460 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 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 1715 [2022-12-13 14:36:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:36:38,509 INFO L225 Difference]: With dead ends: 22173 [2022-12-13 14:36:38,509 INFO L226 Difference]: Without dead ends: 22172 [2022-12-13 14:36:38,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3807 GetRequests, 3048 SyntacticMatches, 0 SemanticMatches, 759 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133579 ImplicationChecksByTransitivity, 60.4s TimeCoverageRelationStatistics Valid=181449, Invalid=396911, Unknown=0, NotChecked=0, Total=578360 [2022-12-13 14:36:38,553 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 37645 mSDsluCounter, 6380 mSDsCounter, 0 mSdLazyCounter, 28077 mSolverCounterSat, 22555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37655 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 50632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 22555 IncrementalHoareTripleChecker+Valid, 28077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:36:38,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37655 Valid, 6530 Invalid, 50632 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [22555 Valid, 28077 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2022-12-13 14:36:38,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2022-12-13 14:36:40,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 22118. [2022-12-13 14:36:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 15294 states have (on average 1.5054923499411534) internal successors, (23025), 20762 states have internal predecessors, (23025), 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) [2022-12-13 14:36:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 35163 transitions. [2022-12-13 14:36:40,272 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 35163 transitions. Word has length 1715 [2022-12-13 14:36:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:36:40,273 INFO L495 AbstractCegarLoop]: Abstraction has 22118 states and 35163 transitions. [2022-12-13 14:36:40,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 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) [2022-12-13 14:36:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 35163 transitions. [2022-12-13 14:36:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2868 [2022-12-13 14:36:40,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:36:40,415 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 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] [2022-12-13 14:36:40,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-12-13 14:36:40,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:36:40,617 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:36:40,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:36:40,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1144316473, now seen corresponding path program 3 times [2022-12-13 14:36:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:36:40,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472180107] [2022-12-13 14:36:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:36:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:36:41,544 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:36:41,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863496736] [2022-12-13 14:36:41,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:36:41,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:36:41,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:36:41,546 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:36:41,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 14:36:47,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 14:36:47,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:36:47,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:36:47,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:36:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 218215 backedges. 2083 proven. 0 refuted. 0 times theorem prover too weak. 216132 trivial. 0 not checked. [2022-12-13 14:36:47,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:36:47,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:36:47,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472180107] [2022-12-13 14:36:47,912 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:36:47,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863496736] [2022-12-13 14:36:47,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863496736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:36:47,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:36:47,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:36:47,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564828991] [2022-12-13 14:36:47,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:36:47,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:36:47,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:36:47,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:36:47,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:36:47,914 INFO L87 Difference]: Start difference. First operand 22118 states and 35163 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 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) [2022-12-13 14:36:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:36:52,320 INFO L93 Difference]: Finished difference Result 45073 states and 70897 transitions. [2022-12-13 14:36:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:36:52,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 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 2867 [2022-12-13 14:36:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:36:52,433 INFO L225 Difference]: With dead ends: 45073 [2022-12-13 14:36:52,433 INFO L226 Difference]: Without dead ends: 45072 [2022-12-13 14:36:52,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2875 GetRequests, 2866 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:36:52,446 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 303 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:36:52,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 387 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:36:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45072 states. [2022-12-13 14:36:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45072 to 36606. [2022-12-13 14:36:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36606 states, 26032 states have (on average 1.5140212046711738) internal successors, (39413), 34119 states have internal predecessors, (39413), 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) [2022-12-13 14:36:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36606 states to 36606 states and 57919 transitions. [2022-12-13 14:36:55,802 INFO L78 Accepts]: Start accepts. Automaton has 36606 states and 57919 transitions. Word has length 2867 [2022-12-13 14:36:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:36:55,804 INFO L495 AbstractCegarLoop]: Abstraction has 36606 states and 57919 transitions. [2022-12-13 14:36:55,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 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) [2022-12-13 14:36:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 36606 states and 57919 transitions. [2022-12-13 14:36:55,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2869 [2022-12-13 14:36:55,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:36:55,989 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 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] [2022-12-13 14:36:56,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-12-13 14:36:56,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:36:56,190 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 14:36:56,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:36:56,192 INFO L85 PathProgramCache]: Analyzing trace with hash -376836015, now seen corresponding path program 1 times [2022-12-13 14:36:56,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:36:56,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473509009] [2022-12-13 14:36:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:36:56,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:36:56,856 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:36:56,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258412141] [2022-12-13 14:36:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:36:56,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:36:56,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:36:56,858 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:36:56,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08c09a93-d541-4a67-aa8e-1c1568ca9e53/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-13 14:37:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:37:06,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 21007 conjuncts, 383 conjunts are in the unsatisfiable core [2022-12-13 14:37:06,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:37:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 217646 backedges. 0 proven. 215085 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-12-13 14:37:36,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:38:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 217646 backedges. 0 proven. 144021 refuted. 0 times theorem prover too weak. 73625 trivial. 0 not checked. [2022-12-13 14:38:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:38:50,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473509009] [2022-12-13 14:38:50,164 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:38:50,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258412141] [2022-12-13 14:38:50,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258412141] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:38:50,165 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:38:50,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [382, 383] total 765 [2022-12-13 14:38:50,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292790849] [2022-12-13 14:38:50,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:38:50,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2022-12-13 14:38:50,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:38:50,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2022-12-13 14:38:50,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2022-12-13 14:38:50,226 INFO L87 Difference]: Start difference. First operand 36606 states and 57919 transitions. Second operand has 766 states, 765 states have (on average 4.43921568627451) internal successors, (3396), 766 states have internal predecessors, (3396), 380 states have call successors, (382), 191 states have call predecessors, (382), 191 states have return successors, (382), 380 states have call predecessors, (382), 380 states have call successors, (382)