./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops-crafted-1/sum_natnum.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sum_natnum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro --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 ff2ea40d6d25fb86e36a6b6b626bedee46fbbe211877b096a26da0b150125568 --- 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-8393723 [2022-11-18 19:35:28,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:35:28,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:35:28,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:35:28,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:35:28,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:35:28,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:35:28,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:35:28,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:35:28,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:35:28,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:35:28,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:35:28,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:35:28,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:35:28,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:35:28,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:35:28,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:35:28,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:35:28,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:35:28,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:35:28,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:35:28,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:35:28,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:35:28,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:35:28,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:35:28,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:35:28,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:35:28,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:35:28,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:35:28,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:35:28,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:35:28,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:35:28,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:35:28,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:35:28,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:35:28,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:35:28,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:35:28,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:35:28,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:35:28,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:35:28,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:35:28,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:35:28,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:35:28,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:35:28,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:35:28,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:35:28,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:35:28,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:35:28,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:35:28,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:35:28,999 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:35:28,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:35:29,000 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:35:29,001 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:35:29,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:35:29,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:35:29,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:35:29,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:35:29,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:35:29,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:35:29,003 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:35:29,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:35:29,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:35:29,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:35:29,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:35:29,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:35:29,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:35:29,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:35:29,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:29,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:35:29,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:35:29,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:35:29,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:35:29,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:35:29,009 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:35:29,009 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:35:29,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:35:29,009 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_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff2ea40d6d25fb86e36a6b6b626bedee46fbbe211877b096a26da0b150125568 [2022-11-18 19:35:29,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:35:29,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:35:29,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:35:29,356 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:35:29,357 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:35:29,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loops-crafted-1/sum_natnum.c [2022-11-18 19:35:29,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/data/b157c76e1/a6d6ce9a42b64dfebbbfc6c43e23d75e/FLAG87af7c732 [2022-11-18 19:35:29,993 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:35:29,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/sv-benchmarks/c/loops-crafted-1/sum_natnum.c [2022-11-18 19:35:29,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/data/b157c76e1/a6d6ce9a42b64dfebbbfc6c43e23d75e/FLAG87af7c732 [2022-11-18 19:35:30,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/data/b157c76e1/a6d6ce9a42b64dfebbbfc6c43e23d75e [2022-11-18 19:35:30,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:35:30,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:35:30,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:30,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:35:30,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:35:30,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5bfbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30, skipping insertion in model container [2022-11-18 19:35:30,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:35:30,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:35:30,634 WARN L234 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_1c5004fb-3abd-416e-9e8c-5196a57b48e2/sv-benchmarks/c/loops-crafted-1/sum_natnum.c[458,471] [2022-11-18 19:35:30,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:30,654 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:35:30,670 WARN L234 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_1c5004fb-3abd-416e-9e8c-5196a57b48e2/sv-benchmarks/c/loops-crafted-1/sum_natnum.c[458,471] [2022-11-18 19:35:30,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:30,688 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:35:30,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30 WrapperNode [2022-11-18 19:35:30,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:30,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:30,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:35:30,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:35:30,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,719 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2022-11-18 19:35:30,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:30,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:35:30,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:35:30,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:35:30,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:35:30,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:35:30,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:35:30,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:35:30,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:30,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:30,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:30,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:35:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:35:30,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:35:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:35:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:35:30,905 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:35:30,908 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:35:37,083 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:35:37,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:35:37,090 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:35:37,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:37 BoogieIcfgContainer [2022-11-18 19:35:37,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:35:37,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:35:37,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:35:37,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:35:37,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:35:30" (1/3) ... [2022-11-18 19:35:37,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2235e6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:37, skipping insertion in model container [2022-11-18 19:35:37,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (2/3) ... [2022-11-18 19:35:37,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2235e6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:37, skipping insertion in model container [2022-11-18 19:35:37,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:37" (3/3) ... [2022-11-18 19:35:37,103 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_natnum.c [2022-11-18 19:35:37,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:35:37,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 19:35:37,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:35:37,178 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;@5c85ee10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:35:37,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:35:37,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 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) [2022-11-18 19:35:37,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 19:35:37,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:37,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 19:35:37,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:37,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash 925989, now seen corresponding path program 1 times [2022-11-18 19:35:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:37,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448713259] [2022-11-18 19:35:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:37,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:37,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448713259] [2022-11-18 19:35:37,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448713259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:37,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:37,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:35:37,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390817197] [2022-11-18 19:35:37,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:37,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:35:37,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:37,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:35:37,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:35:37,372 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-18 19:35:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:37,395 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-18 19:35:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:35:37,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-18 19:35:37,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:37,410 INFO L225 Difference]: With dead ends: 41 [2022-11-18 19:35:37,410 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 19:35:37,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:35:37,426 INFO L413 NwaCegarLoop]: 23 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, 23 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 [2022-11-18 19:35:37,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:37,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 19:35:37,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 19:35:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-11-18 19:35:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-18 19:35:37,468 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2022-11-18 19:35:37,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:37,468 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-18 19:35:37,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-18 19:35:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-18 19:35:37,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 19:35:37,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:37,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 19:35:37,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:35:37,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 925741, now seen corresponding path program 1 times [2022-11-18 19:35:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:37,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700855139] [2022-11-18 19:35:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:37,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:37,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700855139] [2022-11-18 19:35:37,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700855139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:37,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:37,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:35:37,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843076233] [2022-11-18 19:35:37,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:37,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:37,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:37,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:37,601 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-18 19:35:39,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-18 19:35:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:39,698 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-18 19:35:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:35:39,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-18 19:35:39,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:39,701 INFO L225 Difference]: With dead ends: 29 [2022-11-18 19:35:39,701 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 19:35:39,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:39,703 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:39,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 19:35:39,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 19:35:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 19:35:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-18 19:35:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-18 19:35:39,711 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 4 [2022-11-18 19:35:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:39,712 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-18 19:35:39,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-18 19:35:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-18 19:35:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:35:39,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:39,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:39,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:35:39,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629364, now seen corresponding path program 1 times [2022-11-18 19:35:39,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:39,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391758700] [2022-11-18 19:35:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:39,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:35:39,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:39,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391758700] [2022-11-18 19:35:39,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391758700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:39,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:39,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:35:39,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221235963] [2022-11-18 19:35:39,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:39,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:35:39,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:35:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:35:39,766 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 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) [2022-11-18 19:35:41,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-18 19:35:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:41,792 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-18 19:35:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:35:41,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-11-18 19:35:41,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:41,794 INFO L225 Difference]: With dead ends: 18 [2022-11-18 19:35:41,794 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 19:35:41,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:35:41,796 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:41,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 19:35:41,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 19:35:41,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 19:35:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-11-18 19:35:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-18 19:35:41,800 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2022-11-18 19:35:41,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:41,801 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-18 19:35:41,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-18 19:35:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-18 19:35:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:35:41,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:41,816 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-18 19:35:41,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:35:41,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-11-18 19:35:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:41,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988934479] [2022-11-18 19:35:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:41,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:41,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:41,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988934479] [2022-11-18 19:35:41,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988934479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:41,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189438747] [2022-11-18 19:35:41,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:41,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:41,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:35:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:41,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:35:41,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189438747] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:42,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:35:42,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-18 19:35:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661462668] [2022-11-18 19:35:42,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:42,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:35:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:35:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:35:42,102 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-18 19:35:42,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:42,174 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-11-18 19:35:42,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:35:42,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 [2022-11-18 19:35:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:42,176 INFO L225 Difference]: With dead ends: 47 [2022-11-18 19:35:42,176 INFO L226 Difference]: Without dead ends: 46 [2022-11-18 19:35:42,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:35:42,178 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:42,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:35:42,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-18 19:35:42,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 25. [2022-11-18 19:35:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-11-18 19:35:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-11-18 19:35:42,185 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 7 [2022-11-18 19:35:42,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:42,186 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-18 19:35:42,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-18 19:35:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-18 19:35:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:35:42,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:42,187 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-18 19:35:42,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:42,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-11-18 19:35:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:42,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632221607] [2022-11-18 19:35:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:42,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632221607] [2022-11-18 19:35:42,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632221607] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:42,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968419687] [2022-11-18 19:35:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:42,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:35:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:35:42,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:35:42,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968419687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:42,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:35:42,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-18 19:35:42,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164798914] [2022-11-18 19:35:42,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:42,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:42,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:42,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:42,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:42,559 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:35:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:42,577 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2022-11-18 19:35:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:35:42,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-18 19:35:42,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:42,579 INFO L225 Difference]: With dead ends: 25 [2022-11-18 19:35:42,580 INFO L226 Difference]: Without dead ends: 24 [2022-11-18 19:35:42,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:42,581 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:42,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:42,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-18 19:35:42,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-18 19:35:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 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) [2022-11-18 19:35:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-18 19:35:42,588 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2022-11-18 19:35:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:42,589 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-18 19:35:42,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:35:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-18 19:35:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:35:42,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:42,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:42,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 19:35:42,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:42,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash 553065590, now seen corresponding path program 1 times [2022-11-18 19:35:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:42,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360825265] [2022-11-18 19:35:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:42,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:42,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945191125] [2022-11-18 19:35:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:42,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:42,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:42,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:35:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:35:42,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:43,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:43,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360825265] [2022-11-18 19:35:43,004 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:43,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945191125] [2022-11-18 19:35:43,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945191125] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:43,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:35:43,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-18 19:35:43,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667208022] [2022-11-18 19:35:43,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:43,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:35:43,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:35:43,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:35:43,006 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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) [2022-11-18 19:35:45,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-18 19:35:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:45,123 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-18 19:35:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:35:45,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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 9 [2022-11-18 19:35:45,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:45,126 INFO L225 Difference]: With dead ends: 31 [2022-11-18 19:35:45,126 INFO L226 Difference]: Without dead ends: 24 [2022-11-18 19:35:45,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:35:45,128 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:45,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 2 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 19:35:45,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-18 19:35:45,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-18 19:35:45,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-11-18 19:35:45,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-18 19:35:45,136 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 9 [2022-11-18 19:35:45,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:45,136 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-18 19:35:45,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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) [2022-11-18 19:35:45,137 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-18 19:35:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:35:45,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:45,139 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2022-11-18 19:35:45,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:45,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:45,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:45,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:45,341 INFO L85 PathProgramCache]: Analyzing trace with hash 119608740, now seen corresponding path program 2 times [2022-11-18 19:35:45,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:45,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717682253] [2022-11-18 19:35:45,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:45,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:35:45,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:45,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717682253] [2022-11-18 19:35:45,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717682253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:45,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71705906] [2022-11-18 19:35:45,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:35:45,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:45,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:45,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:45,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:35:45,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:35:45,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:45,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:35:45,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:45,506 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:35:45,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:35:45,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71705906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:45,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:35:45,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-18 19:35:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412439019] [2022-11-18 19:35:45,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:45,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:45,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:45,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:45,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:45,547 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-18 19:35:47,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-18 19:35:47,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:47,588 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-11-18 19:35:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:35:47,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 16 [2022-11-18 19:35:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:47,590 INFO L225 Difference]: With dead ends: 24 [2022-11-18 19:35:47,590 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 19:35:47,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:35:47,591 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:47,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 19:35:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 19:35:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-18 19:35:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 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) [2022-11-18 19:35:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-11-18 19:35:47,597 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 16 [2022-11-18 19:35:47,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:47,597 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-11-18 19:35:47,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-18 19:35:47,597 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-11-18 19:35:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 19:35:47,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:47,598 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:47,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:47,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:35:47,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 19:35:47,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:47,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1020169041, now seen corresponding path program 2 times [2022-11-18 19:35:47,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:47,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525567444] [2022-11-18 19:35:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:47,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:47,811 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:35:47,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014799094] [2022-11-18 19:35:47,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:35:47,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:47,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:47,828 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:47,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:35:47,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:35:47,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:35:47,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:35:47,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:35:47,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:35:47,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:47,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525567444] [2022-11-18 19:35:47,917 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:35:47,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014799094] [2022-11-18 19:35:47,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014799094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:47,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:47,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:35:47,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110290313] [2022-11-18 19:35:47,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:47,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:35:47,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:47,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:35:47,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:35:47,919 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-18 19:35:47,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:47,932 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-18 19:35:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:35:47,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 18 [2022-11-18 19:35:47,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:47,934 INFO L225 Difference]: With dead ends: 22 [2022-11-18 19:35:47,934 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:35:47,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:35:47,935 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:47,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:35:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:35:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-18 19:35:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:35:47,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-18 19:35:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:47,938 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:35:47,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-18 19:35:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:35:47,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:35:47,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-18 19:35:47,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-18 19:35:47,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-18 19:35:47,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-18 19:35:47,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-18 19:35:47,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-18 19:35:47,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-18 19:35:47,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-18 19:35:47,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:48,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:48,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:35:48,199 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-18 19:35:48,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:35:48,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,200 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,200 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,201 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,201 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,201 INFO L899 garLoopResultBuilder]: For program point L27-4(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,201 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (= ~SIZE~0 40000))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0))) [2022-11-18 19:35:48,201 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2022-11-18 19:35:48,202 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 15) no Hoare annotation was computed. [2022-11-18 19:35:48,202 INFO L902 garLoopResultBuilder]: At program point L13-2(lines 12 17) the Hoare annotation is: true [2022-11-18 19:35:48,202 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,202 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:35:48,202 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-18 19:35:48,202 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,202 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:35:48,203 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,203 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:35:48,203 INFO L902 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2022-11-18 19:35:48,203 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-18 19:35:48,203 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-18 19:35:48,203 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-11-18 19:35:48,204 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-18 19:35:48,207 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-11-18 19:35:48,209 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:35:48,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:35:48 BoogieIcfgContainer [2022-11-18 19:35:48,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:35:48,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:35:48,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:35:48,230 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:35:48,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:37" (3/4) ... [2022-11-18 19:35:48,234 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:35:48,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-18 19:35:48,246 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 19:35:48,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:35:48,254 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:35:48,288 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:35:48,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:35:48,292 INFO L158 Benchmark]: Toolchain (without parser) took 17907.31ms. Allocated memory is still 140.5MB. Free memory was 108.5MB in the beginning and 102.4MB in the end (delta: 6.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,292 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 96.5MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:48,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.48ms. Allocated memory is still 140.5MB. Free memory was 108.2MB in the beginning and 116.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.90ms. Allocated memory is still 140.5MB. Free memory was 116.1MB in the beginning and 114.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,294 INFO L158 Benchmark]: Boogie Preprocessor took 19.79ms. Allocated memory is still 140.5MB. Free memory was 114.6MB in the beginning and 113.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,299 INFO L158 Benchmark]: RCFGBuilder took 6352.36ms. Allocated memory is still 140.5MB. Free memory was 113.5MB in the beginning and 103.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,300 INFO L158 Benchmark]: TraceAbstraction took 11132.75ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 104.5MB in the end (delta: -2.0MB). Peak memory consumption was 214.3kB. Max. memory is 16.1GB. [2022-11-18 19:35:48,301 INFO L158 Benchmark]: Witness Printer took 61.66ms. Allocated memory is still 140.5MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:35:48,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 96.5MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.48ms. Allocated memory is still 140.5MB. Free memory was 108.2MB in the beginning and 116.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.90ms. Allocated memory is still 140.5MB. Free memory was 116.1MB in the beginning and 114.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.79ms. Allocated memory is still 140.5MB. Free memory was 114.6MB in the beginning and 113.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6352.36ms. Allocated memory is still 140.5MB. Free memory was 113.5MB in the beginning and 103.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11132.75ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 104.5MB in the end (delta: -2.0MB). Peak memory consumption was 214.3kB. Max. memory is 16.1GB. * Witness Printer took 61.66ms. Allocated memory is still 140.5MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 58 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 104 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 362 SizeOfPredicates, 4 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 92/115 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((1 <= i && i <= 2147483646) && SIZE == 40000) || (i == 0 && SIZE == 40000) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 19:35:48,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c5004fb-3abd-416e-9e8c-5196a57b48e2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE