./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:15:14,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:15:14,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:15:14,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:15:14,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:15:14,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:15:14,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:15:14,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:15:14,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:15:14,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:15:14,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:15:14,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:15:14,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:15:14,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:15:14,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:15:14,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:15:14,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:15:14,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:15:14,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:15:14,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:15:14,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:15:14,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:15:14,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:15:14,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:15:14,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:15:14,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:15:14,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:15:14,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:15:14,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:15:14,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:15:14,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:15:14,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:15:14,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:15:14,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:15:14,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:15:14,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:15:14,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:15:14,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:15:14,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:15:14,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:15:14,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:15:14,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:15:14,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:15:14,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:15:14,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:15:14,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:15:14,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:15:14,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:15:14,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:15:14,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:15:14,777 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:15:14,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:15:14,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:15:14,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:15:14,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:15:14,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:15:14,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:15:14,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:15:14,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:15:14,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:15:14,781 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:15:14,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:15:14,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:15:14,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:15:14,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:15:14,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:15:14,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:15:14,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:15:14,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:15:14,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:15:14,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:15:14,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:15:14,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:15:14,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:15:14,787 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:15:14,787 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:15:14,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:15:14,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 [2022-11-16 11:15:15,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:15:15,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:15:15,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:15:15,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:15:15,243 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:15:15,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2022-11-16 11:15:15,329 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/data/943474c55/dc36a009c0e4476f9921f87ba7676ed7/FLAG85f5e5685 [2022-11-16 11:15:16,117 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:15:16,118 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2022-11-16 11:15:16,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/data/943474c55/dc36a009c0e4476f9921f87ba7676ed7/FLAG85f5e5685 [2022-11-16 11:15:16,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/data/943474c55/dc36a009c0e4476f9921f87ba7676ed7 [2022-11-16 11:15:16,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:15:16,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:15:16,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:15:16,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:15:16,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:15:16,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:15:16" (1/1) ... [2022-11-16 11:15:16,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bf7d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:16, skipping insertion in model container [2022-11-16 11:15:16,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:15:16" (1/1) ... [2022-11-16 11:15:16,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:15:16,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:15:16,985 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i[33022,33035] [2022-11-16 11:15:17,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:15:17,355 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:15:17,386 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i[33022,33035] [2022-11-16 11:15:17,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:15:17,555 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:15:17,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17 WrapperNode [2022-11-16 11:15:17,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:15:17,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:15:17,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:15:17,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:15:17,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,768 INFO L138 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2171 [2022-11-16 11:15:17,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:15:17,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:15:17,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:15:17,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:15:17,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,950 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:17,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:15:17,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:15:17,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:15:17,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:15:18,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (1/1) ... [2022-11-16 11:15:18,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:15:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:18,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:15:18,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:15:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-11-16 11:15:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-11-16 11:15:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:15:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 11:15:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 11:15:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:15:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:15:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:15:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:15:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:15:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:15:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:15:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 11:15:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:15:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:15:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:15:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:15:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:15:18,512 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:15:18,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:15:23,473 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:15:23,499 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:15:23,499 INFO L300 CfgBuilder]: Removed 151 assume(true) statements. [2022-11-16 11:15:23,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:15:23 BoogieIcfgContainer [2022-11-16 11:15:23,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:15:23,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:15:23,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:15:23,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:15:23,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:15:16" (1/3) ... [2022-11-16 11:15:23,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9bd0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:15:23, skipping insertion in model container [2022-11-16 11:15:23,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:15:17" (2/3) ... [2022-11-16 11:15:23,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9bd0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:15:23, skipping insertion in model container [2022-11-16 11:15:23,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:15:23" (3/3) ... [2022-11-16 11:15:23,515 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-1.i [2022-11-16 11:15:23,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:15:23,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:15:23,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:15:23,653 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;@6019f326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:15:23,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 11:15:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 434 states, 410 states have (on average 1.7170731707317073) internal successors, (704), 420 states have internal predecessors, (704), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-16 11:15:23,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:15:23,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:23,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:23,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:23,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:23,690 INFO L85 PathProgramCache]: Analyzing trace with hash -165268689, now seen corresponding path program 1 times [2022-11-16 11:15:23,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:23,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453279499] [2022-11-16 11:15:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:23,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:23,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453279499] [2022-11-16 11:15:23,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 11:15:23,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603450901] [2022-11-16 11:15:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:23,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:23,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:23,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:23,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:15:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:24,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:15:24,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:24,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:24,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:24,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603450901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:24,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:24,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:15:24,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367455207] [2022-11-16 11:15:24,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:24,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:15:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:15:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:15:24,389 INFO L87 Difference]: Start difference. First operand has 434 states, 410 states have (on average 1.7170731707317073) internal successors, (704), 420 states have internal predecessors, (704), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:24,528 INFO L93 Difference]: Finished difference Result 866 states and 1470 transitions. [2022-11-16 11:15:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:15:24,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 11:15:24,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:24,569 INFO L225 Difference]: With dead ends: 866 [2022-11-16 11:15:24,569 INFO L226 Difference]: Without dead ends: 430 [2022-11-16 11:15:24,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:15:24,578 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:24,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:15:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-11-16 11:15:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2022-11-16 11:15:24,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 407 states have (on average 1.3316953316953317) internal successors, (542), 417 states have internal predecessors, (542), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 11:15:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 569 transitions. [2022-11-16 11:15:24,659 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 569 transitions. Word has length 7 [2022-11-16 11:15:24,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:24,660 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 569 transitions. [2022-11-16 11:15:24,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:24,661 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 569 transitions. [2022-11-16 11:15:24,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:15:24,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:24,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:24,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:24,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:24,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash -165266767, now seen corresponding path program 1 times [2022-11-16 11:15:24,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:24,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654531683] [2022-11-16 11:15:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:24,920 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:24,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115177051] [2022-11-16 11:15:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:24,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:24,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:24,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:24,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:15:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:25,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:15:25,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:25,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:15:25,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:15:25,481 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 22 treesize of output 10 [2022-11-16 11:15:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:25,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:25,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:25,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654531683] [2022-11-16 11:15:25,518 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:25,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115177051] [2022-11-16 11:15:25,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115177051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:25,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:25,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:15:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465360606] [2022-11-16 11:15:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:25,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:15:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:15:25,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:25,523 INFO L87 Difference]: Start difference. First operand 430 states and 569 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:27,690 INFO L93 Difference]: Finished difference Result 520 states and 689 transitions. [2022-11-16 11:15:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:15:27,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 11:15:27,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:27,696 INFO L225 Difference]: With dead ends: 520 [2022-11-16 11:15:27,696 INFO L226 Difference]: Without dead ends: 518 [2022-11-16 11:15:27,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:15:27,700 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 198 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:27,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1842 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:15:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-16 11:15:27,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 436. [2022-11-16 11:15:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 413 states have (on average 1.3292978208232447) internal successors, (549), 423 states have internal predecessors, (549), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 11:15:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 576 transitions. [2022-11-16 11:15:27,743 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 576 transitions. Word has length 7 [2022-11-16 11:15:27,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:27,744 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 576 transitions. [2022-11-16 11:15:27,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 576 transitions. [2022-11-16 11:15:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 11:15:27,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:27,747 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] [2022-11-16 11:15:27,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 11:15:27,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-16 11:15:27,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:27,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1659936842, now seen corresponding path program 1 times [2022-11-16 11:15:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:27,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766546944] [2022-11-16 11:15:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:28,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:28,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766546944] [2022-11-16 11:15:28,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766546944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:28,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:28,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:15:28,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104044035] [2022-11-16 11:15:28,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:28,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:15:28,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:28,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:15:28,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:15:28,573 INFO L87 Difference]: Start difference. First operand 436 states and 576 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:29,357 INFO L93 Difference]: Finished difference Result 684 states and 909 transitions. [2022-11-16 11:15:29,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:15:29,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-16 11:15:29,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:29,360 INFO L225 Difference]: With dead ends: 684 [2022-11-16 11:15:29,361 INFO L226 Difference]: Without dead ends: 436 [2022-11-16 11:15:29,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:29,364 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 4 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:29,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1533 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:15:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-16 11:15:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2022-11-16 11:15:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 413 states have (on average 1.3268765133171914) internal successors, (548), 423 states have internal predecessors, (548), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 11:15:29,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 575 transitions. [2022-11-16 11:15:29,387 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 575 transitions. Word has length 44 [2022-11-16 11:15:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:29,387 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 575 transitions. [2022-11-16 11:15:29,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:29,388 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 575 transitions. [2022-11-16 11:15:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 11:15:29,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:29,390 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] [2022-11-16 11:15:29,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:15:29,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:29,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:29,392 INFO L85 PathProgramCache]: Analyzing trace with hash -409129759, now seen corresponding path program 1 times [2022-11-16 11:15:29,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:29,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830563384] [2022-11-16 11:15:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:29,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:29,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:29,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542673519] [2022-11-16 11:15:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:29,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:29,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:29,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:29,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:15:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:30,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:15:30,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:30,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:30,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:30,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830563384] [2022-11-16 11:15:30,415 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:30,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542673519] [2022-11-16 11:15:30,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542673519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:30,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:30,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:30,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286579145] [2022-11-16 11:15:30,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:30,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:30,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:30,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:30,418 INFO L87 Difference]: Start difference. First operand 436 states and 575 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:30,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:30,536 INFO L93 Difference]: Finished difference Result 885 states and 1173 transitions. [2022-11-16 11:15:30,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:30,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-11-16 11:15:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:30,540 INFO L225 Difference]: With dead ends: 885 [2022-11-16 11:15:30,540 INFO L226 Difference]: Without dead ends: 457 [2022-11-16 11:15:30,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:30,543 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 9 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:30,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1083 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:30,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-16 11:15:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2022-11-16 11:15:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 433 states have (on average 1.3117782909930715) internal successors, (568), 443 states have internal predecessors, (568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 11:15:30,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 595 transitions. [2022-11-16 11:15:30,578 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 595 transitions. Word has length 58 [2022-11-16 11:15:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:30,579 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 595 transitions. [2022-11-16 11:15:30,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 595 transitions. [2022-11-16 11:15:30,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 11:15:30,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:30,596 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] [2022-11-16 11:15:30,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:30,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:30,807 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:30,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash -14762973, now seen corresponding path program 1 times [2022-11-16 11:15:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:30,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511621970] [2022-11-16 11:15:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:30,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:31,006 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:31,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964330427] [2022-11-16 11:15:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:31,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:31,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:31,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:31,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:15:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:31,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:15:31,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:31,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:31,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:31,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511621970] [2022-11-16 11:15:31,945 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:31,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964330427] [2022-11-16 11:15:31,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964330427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:31,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:31,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:15:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788649130] [2022-11-16 11:15:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:31,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:15:31,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:31,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:15:31,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:15:31,949 INFO L87 Difference]: Start difference. First operand 456 states and 595 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:32,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:32,072 INFO L93 Difference]: Finished difference Result 976 states and 1281 transitions. [2022-11-16 11:15:32,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:15:32,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2022-11-16 11:15:32,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:32,077 INFO L225 Difference]: With dead ends: 976 [2022-11-16 11:15:32,078 INFO L226 Difference]: Without dead ends: 528 [2022-11-16 11:15:32,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:32,091 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 515 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:32,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1467 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-16 11:15:32,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 442. [2022-11-16 11:15:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 419 states have (on average 1.305489260143198) internal successors, (547), 429 states have internal predecessors, (547), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 11:15:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 574 transitions. [2022-11-16 11:15:32,119 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 574 transitions. Word has length 58 [2022-11-16 11:15:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 574 transitions. [2022-11-16 11:15:32,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 574 transitions. [2022-11-16 11:15:32,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 11:15:32,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:32,133 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] [2022-11-16 11:15:32,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:32,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:32,344 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash 2009173205, now seen corresponding path program 1 times [2022-11-16 11:15:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:32,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169531336] [2022-11-16 11:15:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:32,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:32,506 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:32,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141343193] [2022-11-16 11:15:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:32,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:32,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:32,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:32,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:15:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:33,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:15:33,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:15:33,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:33,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:33,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169531336] [2022-11-16 11:15:33,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:33,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141343193] [2022-11-16 11:15:33,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141343193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:33,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:33,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:33,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499077518] [2022-11-16 11:15:33,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:33,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:33,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:33,701 INFO L87 Difference]: Start difference. First operand 442 states and 574 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:33,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:33,812 INFO L93 Difference]: Finished difference Result 1102 states and 1433 transitions. [2022-11-16 11:15:33,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:33,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-11-16 11:15:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:33,817 INFO L225 Difference]: With dead ends: 1102 [2022-11-16 11:15:33,817 INFO L226 Difference]: Without dead ends: 668 [2022-11-16 11:15:33,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:33,820 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 246 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:33,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1225 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-11-16 11:15:33,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 664. [2022-11-16 11:15:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 636 states have (on average 1.2955974842767295) internal successors, (824), 646 states have internal predecessors, (824), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-16 11:15:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 861 transitions. [2022-11-16 11:15:33,849 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 861 transitions. Word has length 58 [2022-11-16 11:15:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:33,850 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 861 transitions. [2022-11-16 11:15:33,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:15:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 861 transitions. [2022-11-16 11:15:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 11:15:33,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:33,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:33,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:34,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 11:15:34,064 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:34,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2105717968, now seen corresponding path program 1 times [2022-11-16 11:15:34,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:34,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464783825] [2022-11-16 11:15:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:34,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:34,128 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:34,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067721962] [2022-11-16 11:15:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:34,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:34,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:34,131 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:34,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:15:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:34,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:15:34,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:34,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:15:34,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 11:15:34,996 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 11:15:34,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 11:15:35,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-16 11:15:35,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:15:35,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 11:15:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:15:35,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:35,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464783825] [2022-11-16 11:15:35,091 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:35,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067721962] [2022-11-16 11:15:35,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067721962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:35,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:35,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:15:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225123250] [2022-11-16 11:15:35,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:35,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:15:35,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:35,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:15:35,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:35,099 INFO L87 Difference]: Start difference. First operand 664 states and 861 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:37,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:37,305 INFO L93 Difference]: Finished difference Result 1238 states and 1605 transitions. [2022-11-16 11:15:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:15:37,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 73 [2022-11-16 11:15:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:37,309 INFO L225 Difference]: With dead ends: 1238 [2022-11-16 11:15:37,309 INFO L226 Difference]: Without dead ends: 664 [2022-11-16 11:15:37,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:15:37,311 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 98 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:37,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1867 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 11:15:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-11-16 11:15:37,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2022-11-16 11:15:37,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 636 states have (on average 1.2940251572327044) internal successors, (823), 646 states have internal predecessors, (823), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-16 11:15:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 860 transitions. [2022-11-16 11:15:37,345 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 860 transitions. Word has length 73 [2022-11-16 11:15:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:37,345 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 860 transitions. [2022-11-16 11:15:37,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 860 transitions. [2022-11-16 11:15:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 11:15:37,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:37,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:37,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:37,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 11:15:37,559 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 363096575, now seen corresponding path program 1 times [2022-11-16 11:15:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:37,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958129701] [2022-11-16 11:15:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:37,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:37,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717379122] [2022-11-16 11:15:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:37,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:37,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:37,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:37,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:15:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:39,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:15:39,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:15:39,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:39,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958129701] [2022-11-16 11:15:39,281 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717379122] [2022-11-16 11:15:39,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717379122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:39,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:39,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:39,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677111885] [2022-11-16 11:15:39,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:39,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:39,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:39,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:39,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:39,285 INFO L87 Difference]: Start difference. First operand 664 states and 860 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:39,406 INFO L93 Difference]: Finished difference Result 1350 states and 1759 transitions. [2022-11-16 11:15:39,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:39,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 120 [2022-11-16 11:15:39,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:39,422 INFO L225 Difference]: With dead ends: 1350 [2022-11-16 11:15:39,422 INFO L226 Difference]: Without dead ends: 706 [2022-11-16 11:15:39,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:39,426 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 9 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:39,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1069 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:39,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-11-16 11:15:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 704. [2022-11-16 11:15:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 676 states have (on average 1.2766272189349113) internal successors, (863), 686 states have internal predecessors, (863), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-16 11:15:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 900 transitions. [2022-11-16 11:15:39,459 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 900 transitions. Word has length 120 [2022-11-16 11:15:39,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:39,459 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 900 transitions. [2022-11-16 11:15:39,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 900 transitions. [2022-11-16 11:15:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 11:15:39,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:39,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:39,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:39,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:39,681 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:39,682 INFO L85 PathProgramCache]: Analyzing trace with hash 424174595, now seen corresponding path program 1 times [2022-11-16 11:15:39,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:39,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794229974] [2022-11-16 11:15:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:39,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:39,842 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:39,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333559276] [2022-11-16 11:15:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:39,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:39,844 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:39,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 11:15:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:41,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:15:41,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:15:41,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:41,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:41,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794229974] [2022-11-16 11:15:41,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:41,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333559276] [2022-11-16 11:15:41,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333559276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:41,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:41,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:15:41,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929090428] [2022-11-16 11:15:41,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:41,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:15:41,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:41,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:15:41,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:15:41,351 INFO L87 Difference]: Start difference. First operand 704 states and 900 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:41,476 INFO L93 Difference]: Finished difference Result 1344 states and 1724 transitions. [2022-11-16 11:15:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:15:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 120 [2022-11-16 11:15:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:41,481 INFO L225 Difference]: With dead ends: 1344 [2022-11-16 11:15:41,481 INFO L226 Difference]: Without dead ends: 678 [2022-11-16 11:15:41,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:41,484 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 508 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:41,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1129 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:41,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-16 11:15:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 676. [2022-11-16 11:15:41,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 648 states have (on average 1.2669753086419753) internal successors, (821), 658 states have internal predecessors, (821), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-16 11:15:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 858 transitions. [2022-11-16 11:15:41,515 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 858 transitions. Word has length 120 [2022-11-16 11:15:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:41,516 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 858 transitions. [2022-11-16 11:15:41,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 858 transitions. [2022-11-16 11:15:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 11:15:41,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:41,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:41,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:41,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:41,733 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash 933833013, now seen corresponding path program 1 times [2022-11-16 11:15:41,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:41,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101064804] [2022-11-16 11:15:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:41,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:41,956 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:41,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017850063] [2022-11-16 11:15:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:41,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:41,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:41,961 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:42,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 11:15:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:43,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:15:43,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:15:43,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:43,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:43,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101064804] [2022-11-16 11:15:43,781 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:43,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017850063] [2022-11-16 11:15:43,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017850063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:43,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:43,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:15:43,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666615504] [2022-11-16 11:15:43,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:43,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:15:43,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:43,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:15:43,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:43,784 INFO L87 Difference]: Start difference. First operand 676 states and 858 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:43,943 INFO L93 Difference]: Finished difference Result 1531 states and 1968 transitions. [2022-11-16 11:15:43,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:15:43,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 120 [2022-11-16 11:15:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:43,950 INFO L225 Difference]: With dead ends: 1531 [2022-11-16 11:15:43,950 INFO L226 Difference]: Without dead ends: 915 [2022-11-16 11:15:43,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:15:43,955 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 220 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:43,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1083 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-16 11:15:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 813. [2022-11-16 11:15:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 782 states have (on average 1.274936061381074) internal successors, (997), 792 states have internal predecessors, (997), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-16 11:15:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1040 transitions. [2022-11-16 11:15:43,997 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1040 transitions. Word has length 120 [2022-11-16 11:15:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:43,997 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 1040 transitions. [2022-11-16 11:15:43,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 11:15:43,998 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1040 transitions. [2022-11-16 11:15:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 11:15:44,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:44,000 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:44,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:44,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:44,216 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:44,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:44,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1175279478, now seen corresponding path program 1 times [2022-11-16 11:15:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:44,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324583482] [2022-11-16 11:15:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:44,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:44,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:44,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842238228] [2022-11-16 11:15:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:44,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:44,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:44,319 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 11:15:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:15:52,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:15:52,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:15:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-16 11:15:52,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:15:52,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:15:52,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324583482] [2022-11-16 11:15:52,931 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:15:52,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842238228] [2022-11-16 11:15:52,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842238228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:15:52,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:15:52,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:15:52,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839662046] [2022-11-16 11:15:52,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:15:52,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:15:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:15:52,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:15:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:15:52,934 INFO L87 Difference]: Start difference. First operand 813 states and 1040 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 11:15:53,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:15:53,074 INFO L93 Difference]: Finished difference Result 1575 states and 2032 transitions. [2022-11-16 11:15:53,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:15:53,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 135 [2022-11-16 11:15:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:15:53,080 INFO L225 Difference]: With dead ends: 1575 [2022-11-16 11:15:53,081 INFO L226 Difference]: Without dead ends: 816 [2022-11-16 11:15:53,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:15:53,084 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 2 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:15:53,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1646 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:15:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-11-16 11:15:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2022-11-16 11:15:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 784 states have (on average 1.2755102040816326) internal successors, (1000), 795 states have internal predecessors, (1000), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-11-16 11:15:53,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1046 transitions. [2022-11-16 11:15:53,138 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1046 transitions. Word has length 135 [2022-11-16 11:15:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:15:53,138 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1046 transitions. [2022-11-16 11:15:53,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 11:15:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1046 transitions. [2022-11-16 11:15:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-16 11:15:53,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:15:53,141 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:15:53,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:15:53,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:53,356 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:15:53,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:15:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash -209215430, now seen corresponding path program 1 times [2022-11-16 11:15:53,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:15:53,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576566874] [2022-11-16 11:15:53,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:53,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:15:53,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:15:53,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243263573] [2022-11-16 11:15:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:15:53,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:15:53,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:15:53,492 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:15:53,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 11:18:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:40,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 11:18:40,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:18:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 11:18:40,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:18:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-16 11:18:40,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:40,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576566874] [2022-11-16 11:18:40,505 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:18:40,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243263573] [2022-11-16 11:18:40,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243263573] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:18:40,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:18:40,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:18:40,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306644858] [2022-11-16 11:18:40,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:18:40,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:18:40,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:18:40,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:18:40,509 INFO L87 Difference]: Start difference. First operand 816 states and 1046 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 11:18:40,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:40,760 INFO L93 Difference]: Finished difference Result 1589 states and 2062 transitions. [2022-11-16 11:18:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:18:40,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2022-11-16 11:18:40,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:40,765 INFO L225 Difference]: With dead ends: 1589 [2022-11-16 11:18:40,766 INFO L226 Difference]: Without dead ends: 825 [2022-11-16 11:18:40,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:18:40,768 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 25 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1634 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-11-16 11:18:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2022-11-16 11:18:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 792 states have (on average 1.2777777777777777) internal successors, (1012), 803 states have internal predecessors, (1012), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2022-11-16 11:18:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1061 transitions. [2022-11-16 11:18:40,866 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1061 transitions. Word has length 139 [2022-11-16 11:18:40,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:40,867 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1061 transitions. [2022-11-16 11:18:40,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 11:18:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1061 transitions. [2022-11-16 11:18:40,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-16 11:18:40,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:40,871 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:40,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:18:41,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 11:18:41,096 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:18:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1930431734, now seen corresponding path program 2 times [2022-11-16 11:18:41,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:41,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210967318] [2022-11-16 11:18:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:41,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:41,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:18:41,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481349398] [2022-11-16 11:18:41,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:18:41,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:18:41,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:18:41,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:18:41,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 11:19:23,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:19:23,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:19:23,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:19:23,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:19:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-16 11:19:23,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:19:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-16 11:19:23,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:23,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210967318] [2022-11-16 11:19:23,393 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 11:19:23,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481349398] [2022-11-16 11:19:23,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481349398] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:19:23,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:19:23,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2022-11-16 11:19:23,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912276562] [2022-11-16 11:19:23,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:19:23,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:19:23,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:19:23,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:19:23,396 INFO L87 Difference]: Start difference. First operand 825 states and 1061 transitions. Second operand has 15 states, 15 states have (on average 9.0) internal successors, (135), 15 states have internal predecessors, (135), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-16 11:19:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:24,375 INFO L93 Difference]: Finished difference Result 1651 states and 2151 transitions. [2022-11-16 11:19:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 11:19:24,376 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.0) internal successors, (135), 15 states have internal predecessors, (135), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 147 [2022-11-16 11:19:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:24,383 INFO L225 Difference]: With dead ends: 1651 [2022-11-16 11:19:24,383 INFO L226 Difference]: Without dead ends: 836 [2022-11-16 11:19:24,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:19:24,386 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 576 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:19:24,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 3306 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:19:24,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-11-16 11:19:24,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 828. [2022-11-16 11:19:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 795 states have (on average 1.2842767295597484) internal successors, (1021), 806 states have internal predecessors, (1021), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-11-16 11:19:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1067 transitions. [2022-11-16 11:19:24,432 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1067 transitions. Word has length 147 [2022-11-16 11:19:24,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:19:24,433 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1067 transitions. [2022-11-16 11:19:24,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.0) internal successors, (135), 15 states have internal predecessors, (135), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-16 11:19:24,433 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1067 transitions. [2022-11-16 11:19:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-16 11:19:24,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:19:24,436 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:24,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:19:24,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 11:19:24,638 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 11:19:24,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:24,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1264040350, now seen corresponding path program 3 times [2022-11-16 11:19:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:24,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067768555] [2022-11-16 11:19:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:24,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:24,757 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 11:19:24,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739589827] [2022-11-16 11:19:24,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:19:24,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:19:24,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:24,759 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:19:24,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f98c86-f101-4659-bc91-62c4eebfa2cb/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process