./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix040.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:31:31,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:31:31,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:31:31,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:31:31,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:31:31,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:31:31,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:31:31,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:31:31,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:31:31,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:31:31,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:31:31,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:31:31,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:31:31,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:31:31,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:31:31,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:31:31,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:31:31,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:31:31,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:31:31,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:31:31,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:31:31,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:31:31,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:31:31,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:31:31,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:31:31,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:31:31,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:31:31,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:31:31,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:31:31,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:31:31,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:31:31,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:31:31,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:31:31,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:31:31,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:31:31,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:31:31,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:31:31,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:31:31,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:31:31,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:31:31,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:31:31,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 19:31:31,931 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:31:31,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:31:31,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:31:31,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:31:31,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:31:31,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:31:31,937 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:31:31,938 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:31:31,938 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:31:31,939 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:31:31,940 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:31:31,940 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:31:31,941 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:31:31,941 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:31:31,941 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:31:31,942 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:31:31,942 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:31:31,943 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:31:31,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:31:31,944 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:31:31,944 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:31:31,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:31:31,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:31:31,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:31:31,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:31:31,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:31:31,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:31:31,948 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 19:31:31,948 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:31:31,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:31:31,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:31:31,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:31:31,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:31:31,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:31:31,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:31,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:31:31,952 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:31:31,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:31:31,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:31:31,959 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:31:31,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:31:31,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:31:31,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:31:31,960 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_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2022-11-16 19:31:32,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:31:32,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:31:32,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:31:32,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:31:32,296 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:31:32,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-11-16 19:31:32,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/data/9d08fe6d3/6098ee5850d5412da1c47168c7c56882/FLAG1887f5bb1 [2022-11-16 19:31:32,921 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:31:32,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2022-11-16 19:31:32,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/data/9d08fe6d3/6098ee5850d5412da1c47168c7c56882/FLAG1887f5bb1 [2022-11-16 19:31:33,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/data/9d08fe6d3/6098ee5850d5412da1c47168c7c56882 [2022-11-16 19:31:33,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:31:33,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:31:33,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:33,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:31:33,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:31:33,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:33" (1/1) ... [2022-11-16 19:31:33,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d1c476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:33, skipping insertion in model container [2022-11-16 19:31:33,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:33" (1/1) ... [2022-11-16 19:31:33,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:31:33,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:31:33,573 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/sv-benchmarks/c/pthread-wmm/mix040.opt.i[944,957] [2022-11-16 19:31:33,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:33,915 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:31:33,932 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/sv-benchmarks/c/pthread-wmm/mix040.opt.i[944,957] [2022-11-16 19:31:34,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:34,045 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:31:34,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34 WrapperNode [2022-11-16 19:31:34,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:34,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:34,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:31:34,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:31:34,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,124 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2022-11-16 19:31:34,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:34,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:31:34,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:31:34,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:31:34,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:31:34,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:31:34,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:31:34,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:31:34,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (1/1) ... [2022-11-16 19:31:34,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:34,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:31:34,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:31:34,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:31:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:31:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 19:31:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:31:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:31:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:31:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 19:31:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 19:31:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 19:31:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 19:31:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 19:31:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 19:31:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 19:31:34,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 19:31:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:31:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 19:31:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:31:34,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:31:34,268 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 19:31:34,417 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:31:34,420 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:31:34,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:31:35,174 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:31:35,175 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 19:31:35,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:35 BoogieIcfgContainer [2022-11-16 19:31:35,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:31:35,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:31:35,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:31:35,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:31:35,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:33" (1/3) ... [2022-11-16 19:31:35,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41974ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:35, skipping insertion in model container [2022-11-16 19:31:35,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:34" (2/3) ... [2022-11-16 19:31:35,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41974ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:35, skipping insertion in model container [2022-11-16 19:31:35,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:35" (3/3) ... [2022-11-16 19:31:35,188 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2022-11-16 19:31:35,197 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 19:31:35,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:31:35,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 19:31:35,210 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 19:31:35,285 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 19:31:35,322 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 19:31:35,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 142 transitions, 304 flow [2022-11-16 19:31:35,340 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 142 transitions, 304 flow [2022-11-16 19:31:35,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 142 transitions, 304 flow [2022-11-16 19:31:35,409 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-11-16 19:31:35,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 19:31:35,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-16 19:31:35,420 INFO L119 LiptonReduction]: Number of co-enabled transitions 3964 [2022-11-16 19:31:42,346 INFO L134 LiptonReduction]: Checked pairs total: 12797 [2022-11-16 19:31:42,347 INFO L136 LiptonReduction]: Total number of compositions: 119 [2022-11-16 19:31:42,355 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 38 transitions, 96 flow [2022-11-16 19:31:42,753 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7426 states, 7346 states have (on average 4.3490334876123065) internal successors, (31948), 7425 states have internal predecessors, (31948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:42,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:31:42,791 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d51b39b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:31:42,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 19:31:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 7426 states, 7346 states have (on average 4.3490334876123065) internal successors, (31948), 7425 states have internal predecessors, (31948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:42,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:31:42,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:31:42,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:31:42,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 19:31:42,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:31:42,863 INFO L85 PathProgramCache]: Analyzing trace with hash 17949570, now seen corresponding path program 1 times [2022-11-16 19:31:42,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:31:42,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553144938] [2022-11-16 19:31:42,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:31:42,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:31:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:31:43,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:31:43,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:31:43,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553144938] [2022-11-16 19:31:43,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553144938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:31:43,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:31:43,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 19:31:43,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374222084] [2022-11-16 19:31:43,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:31:43,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:31:43,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:31:43,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:31:43,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:31:43,392 INFO L87 Difference]: Start difference. First operand has 7426 states, 7346 states have (on average 4.3490334876123065) internal successors, (31948), 7425 states have internal predecessors, (31948), 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 3 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) [2022-11-16 19:31:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:31:43,648 INFO L93 Difference]: Finished difference Result 4234 states and 15273 transitions. [2022-11-16 19:31:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:31:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-11-16 19:31:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:31:43,706 INFO L225 Difference]: With dead ends: 4234 [2022-11-16 19:31:43,706 INFO L226 Difference]: Without dead ends: 4234 [2022-11-16 19:31:43,707 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 [2022-11-16 19:31:43,711 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:31:43,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 12 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:31:43,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2022-11-16 19:31:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4234. [2022-11-16 19:31:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4170 states have (on average 3.662589928057554) internal successors, (15273), 4233 states have internal predecessors, (15273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 15273 transitions. [2022-11-16 19:31:44,065 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 15273 transitions. Word has length 4 [2022-11-16 19:31:44,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:31:44,066 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 15273 transitions. [2022-11-16 19:31:44,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-16 19:31:44,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 15273 transitions. [2022-11-16 19:31:44,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:31:44,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:31:44,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:31:44,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:31:44,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 19:31:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:31:44,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1303125984, now seen corresponding path program 1 times [2022-11-16 19:31:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:31:44,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425527134] [2022-11-16 19:31:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:31:44,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:31:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:31:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:31:44,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:31:44,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425527134] [2022-11-16 19:31:44,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425527134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:31:44,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:31:44,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:31:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31102132] [2022-11-16 19:31:44,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:31:44,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:31:44,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:31:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:31:44,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:31:44,192 INFO L87 Difference]: Start difference. First operand 4234 states and 15273 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-16 19:31:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:31:44,340 INFO L93 Difference]: Finished difference Result 2722 states and 9933 transitions. [2022-11-16 19:31:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:31:44,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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 9 [2022-11-16 19:31:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:31:44,365 INFO L225 Difference]: With dead ends: 2722 [2022-11-16 19:31:44,365 INFO L226 Difference]: Without dead ends: 2722 [2022-11-16 19:31:44,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:31:44,367 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:31:44,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 16 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:31:44,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2022-11-16 19:31:44,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2722. [2022-11-16 19:31:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2708 states have (on average 3.6680206794682424) internal successors, (9933), 2721 states have internal predecessors, (9933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 9933 transitions. [2022-11-16 19:31:44,539 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 9933 transitions. Word has length 9 [2022-11-16 19:31:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:31:44,540 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 9933 transitions. [2022-11-16 19:31:44,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-16 19:31:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 9933 transitions. [2022-11-16 19:31:44,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 19:31:44,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:31:44,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:31:44,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:31:44,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 19:31:44,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:31:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1742201890, now seen corresponding path program 1 times [2022-11-16 19:31:44,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:31:44,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668927646] [2022-11-16 19:31:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:31:44,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:31:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:31:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:31:44,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:31:44,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668927646] [2022-11-16 19:31:44,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668927646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:31:44,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:31:44,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:31:44,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039622752] [2022-11-16 19:31:44,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:31:44,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:31:44,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:31:44,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:31:44,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:31:44,680 INFO L87 Difference]: Start difference. First operand 2722 states and 9933 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:44,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:31:44,814 INFO L93 Difference]: Finished difference Result 1916 states and 6949 transitions. [2022-11-16 19:31:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:31:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 19:31:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:31:44,828 INFO L225 Difference]: With dead ends: 1916 [2022-11-16 19:31:44,828 INFO L226 Difference]: Without dead ends: 1916 [2022-11-16 19:31:44,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:31:44,830 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 51 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:31:44,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 16 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:31:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-11-16 19:31:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1916. [2022-11-16 19:31:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1906 states have (on average 3.6458551941238193) internal successors, (6949), 1915 states have internal predecessors, (6949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 6949 transitions. [2022-11-16 19:31:44,973 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 6949 transitions. Word has length 10 [2022-11-16 19:31:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:31:44,974 INFO L495 AbstractCegarLoop]: Abstraction has 1916 states and 6949 transitions. [2022-11-16 19:31:44,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 6949 transitions. [2022-11-16 19:31:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 19:31:44,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:31:44,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:31:44,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:31:44,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 19:31:44,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:31:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash -319024396, now seen corresponding path program 1 times [2022-11-16 19:31:44,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:31:44,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792982098] [2022-11-16 19:31:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:31:44,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:31:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:31:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:31:45,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:31:45,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792982098] [2022-11-16 19:31:45,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792982098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:31:45,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:31:45,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:31:45,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322790085] [2022-11-16 19:31:45,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:31:45,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:31:45,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:31:45,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:31:45,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:31:45,106 INFO L87 Difference]: Start difference. First operand 1916 states and 6949 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-16 19:31:45,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:31:45,297 INFO L93 Difference]: Finished difference Result 1718 states and 6409 transitions. [2022-11-16 19:31:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:31:45,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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 15 [2022-11-16 19:31:45,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:31:45,311 INFO L225 Difference]: With dead ends: 1718 [2022-11-16 19:31:45,312 INFO L226 Difference]: Without dead ends: 1718 [2022-11-16 19:31:45,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:31:45,313 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 55 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:31:45,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 20 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:31:45,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-11-16 19:31:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1718. [2022-11-16 19:31:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1714 states have (on average 3.739206534422404) internal successors, (6409), 1717 states have internal predecessors, (6409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:45,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 6409 transitions. [2022-11-16 19:31:45,422 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 6409 transitions. Word has length 15 [2022-11-16 19:31:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:31:45,423 INFO L495 AbstractCegarLoop]: Abstraction has 1718 states and 6409 transitions. [2022-11-16 19:31:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-16 19:31:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 6409 transitions. [2022-11-16 19:31:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 19:31:45,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:31:45,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:31:45,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:31:45,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 19:31:45,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:31:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash -795971702, now seen corresponding path program 1 times [2022-11-16 19:31:45,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:31:45,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954553081] [2022-11-16 19:31:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:31:45,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:31:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:31:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:31:45,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:31:45,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954553081] [2022-11-16 19:31:45,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954553081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:31:45,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:31:45,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:31:45,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626064359] [2022-11-16 19:31:45,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:31:45,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 19:31:45,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:31:45,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 19:31:45,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 19:31:45,583 INFO L87 Difference]: Start difference. First operand 1718 states and 6409 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 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) [2022-11-16 19:31:45,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:31:45,799 INFO L93 Difference]: Finished difference Result 1702 states and 6381 transitions. [2022-11-16 19:31:45,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 19:31:45,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 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) Word has length 22 [2022-11-16 19:31:45,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:31:45,800 INFO L225 Difference]: With dead ends: 1702 [2022-11-16 19:31:45,800 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:31:45,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 19:31:45,801 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 75 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:31:45,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 16 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:31:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:31:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:31:45,802 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) [2022-11-16 19:31:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:31:45,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-16 19:31:45,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:31:45,802 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:31:45,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 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) [2022-11-16 19:31:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:31:45,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:31:45,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 19:31:45,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 19:31:45,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 19:31:45,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 19:31:45,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 19:31:45,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 19:31:45,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 19:31:45,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 19:31:45,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:31:45,811 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 19:31:45,818 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 19:31:45,818 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:31:45,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:31:45 BasicIcfg [2022-11-16 19:31:45,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:31:45,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:31:45,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:31:45,822 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:31:45,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:35" (3/4) ... [2022-11-16 19:31:45,826 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:31:45,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 19:31:45,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 19:31:45,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 19:31:45,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 19:31:45,837 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 19:31:45,837 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 19:31:45,837 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 19:31:45,838 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:31:45,871 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:31:45,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:31:45,872 INFO L158 Benchmark]: Toolchain (without parser) took 12653.16ms. Allocated memory was 123.7MB in the beginning and 245.4MB in the end (delta: 121.6MB). Free memory was 76.0MB in the beginning and 121.9MB in the end (delta: -46.0MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,872 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:31:45,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 826.37ms. Allocated memory is still 123.7MB. Free memory was 75.7MB in the beginning and 84.7MB in the end (delta: -9.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.58ms. Allocated memory is still 123.7MB. Free memory was 84.7MB in the beginning and 82.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,873 INFO L158 Benchmark]: Boogie Preprocessor took 30.87ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,873 INFO L158 Benchmark]: RCFGBuilder took 1020.87ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 80.2MB in the beginning and 126.1MB in the end (delta: -45.9MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,874 INFO L158 Benchmark]: TraceAbstraction took 10641.19ms. Allocated memory was 153.1MB in the beginning and 245.4MB in the end (delta: 92.3MB). Free memory was 125.3MB in the beginning and 125.1MB in the end (delta: 198.1kB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,874 INFO L158 Benchmark]: Witness Printer took 49.20ms. Allocated memory is still 245.4MB. Free memory was 125.1MB in the beginning and 121.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 19:31:45,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 826.37ms. Allocated memory is still 123.7MB. Free memory was 75.7MB in the beginning and 84.7MB in the end (delta: -9.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.58ms. Allocated memory is still 123.7MB. Free memory was 84.7MB in the beginning and 82.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.87ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1020.87ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 80.2MB in the beginning and 126.1MB in the end (delta: -45.9MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10641.19ms. Allocated memory was 153.1MB in the beginning and 245.4MB in the end (delta: 92.3MB). Free memory was 125.3MB in the beginning and 125.1MB in the end (delta: 198.1kB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 49.20ms. Allocated memory is still 245.4MB. Free memory was 125.1MB in the beginning and 121.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 153 PlacesBefore, 50 PlacesAfterwards, 142 TransitionsBefore, 38 TransitionsAfterwards, 3964 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 119 TotalNumberOfCompositions, 12797 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6253, independent: 5949, independent conditional: 0, independent unconditional: 5949, dependent: 304, dependent conditional: 0, dependent unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2849, independent: 2763, independent conditional: 0, independent unconditional: 2763, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2849, independent: 2695, independent conditional: 0, independent unconditional: 2695, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 154, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 709, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 558, dependent conditional: 0, dependent unconditional: 558, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6253, independent: 3186, independent conditional: 0, independent unconditional: 3186, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 2849, unknown conditional: 0, unknown unconditional: 2849] , Statistics on independence cache: Total cache size (in pairs): 385, Positive cache size: 349, Positive conditional cache size: 0, Positive unconditional cache size: 349, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 184 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 36 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7426occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2022-11-16 19:31:45,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a0537-b1cf-4603-adc6-e6be28e6f7b7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE