./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh --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 e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 16:00:15,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:00:15,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:00:15,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:00:15,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:00:15,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:00:15,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:00:15,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:00:15,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:00:15,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:00:15,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:00:15,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:00:15,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:00:15,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:00:15,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:00:15,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:00:15,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:00:15,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:00:15,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:00:15,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:00:15,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:00:15,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:00:15,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:00:15,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:00:15,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:00:15,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:00:15,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:00:15,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:00:15,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:00:15,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:00:15,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:00:15,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:00:15,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:00:15,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:00:15,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:00:15,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:00:15,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:00:15,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:00:15,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:00:15,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:00:15,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:00:15,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 16:00:15,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:00:15,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:00:15,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:00:15,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:00:15,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:00:15,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:00:15,932 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:00:15,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:00:15,932 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:00:15,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:00:15,932 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:00:15,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:00:15,933 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:00:15,933 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:00:15,933 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:00:15,933 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:00:15,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:00:15,934 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:00:15,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:00:15,934 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 16:00:15,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 16:00:15,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 16:00:15,935 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 16:00:15,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:00:15,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:00:15,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:00:15,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:00:15,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:00:15,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:15,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:00:15,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:00:15,937 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_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2022-12-14 16:00:16,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:00:16,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:00:16,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:00:16,144 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:00:16,145 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:00:16,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-12-14 16:00:18,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:00:18,892 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:00:18,892 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-12-14 16:00:18,897 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/data/7bd0c9d5f/c09a652ab3ec412ab2da5e57aad5db36/FLAG1b39a1661 [2022-12-14 16:00:18,908 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/data/7bd0c9d5f/c09a652ab3ec412ab2da5e57aad5db36 [2022-12-14 16:00:18,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:00:18,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:00:18,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:18,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:00:18,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:00:18,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:18" (1/1) ... [2022-12-14 16:00:18,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb24a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:18, skipping insertion in model container [2022-12-14 16:00:18,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:18" (1/1) ... [2022-12-14 16:00:18,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:00:18,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:00:19,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:00:19,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:00:19,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:00:19,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:00:19,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:00:19,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:00:19,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-14 16:00:19,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:19,099 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:00:19,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:00:19,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:00:19,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:00:19,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:00:19,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 16:00:19,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 16:00:19,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-12-14 16:00:19,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:19,132 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:00:19,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19 WrapperNode [2022-12-14 16:00:19,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:19,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:19,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:00:19,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:00:19,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,171 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 521 [2022-12-14 16:00:19,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:19,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:00:19,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:00:19,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:00:19,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:00:19,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:00:19,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:00:19,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:00:19,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (1/1) ... [2022-12-14 16:00:19,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:19,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:19,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:00:19,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:00:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:00:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 16:00:19,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 16:00:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 16:00:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 16:00:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 16:00:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 16:00:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:00:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:00:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 16:00:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 16:00:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 16:00:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:00:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:00:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 16:00:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:00:19,277 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 16:00:19,389 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:00:19,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:00:20,012 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:00:22,760 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:00:22,760 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 16:00:22,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:22 BoogieIcfgContainer [2022-12-14 16:00:22,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:00:22,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:00:22,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:00:22,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:00:22,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:00:18" (1/3) ... [2022-12-14 16:00:22,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f664998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:22, skipping insertion in model container [2022-12-14 16:00:22,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:19" (2/3) ... [2022-12-14 16:00:22,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f664998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:22, skipping insertion in model container [2022-12-14 16:00:22,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:22" (3/3) ... [2022-12-14 16:00:22,770 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-12-14 16:00:22,777 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 16:00:22,784 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:00:22,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2022-12-14 16:00:22,784 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 16:00:23,645 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 16:00:23,672 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 16:00:23,685 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 204 transitions, 432 flow [2022-12-14 16:00:23,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 204 transitions, 432 flow [2022-12-14 16:00:23,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 204 transitions, 432 flow [2022-12-14 16:00:23,917 INFO L130 PetriNetUnfolder]: 2/201 cut-off events. [2022-12-14 16:00:23,917 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 16:00:23,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 201 events. 2/201 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 501 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-12-14 16:00:23,922 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2022-12-14 16:00:33,808 WARN L233 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 1316 DAG size of output: 677 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 16:00:49,417 WARN L233 SmtUtils]: Spent 13.40s on a formula simplification. DAG size of input: 1530 DAG size of output: 829 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 16:01:25,947 INFO L134 LiptonReduction]: Checked pairs total: 4906 [2022-12-14 16:01:25,947 INFO L136 LiptonReduction]: Total number of compositions: 124 [2022-12-14 16:01:25,954 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 206 flow [2022-12-14 16:01:26,732 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37956 states, 22332 states have (on average 5.6899964176965785) internal successors, (127069), 37955 states have internal predecessors, (127069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:26,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:01:26,749 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;@6495a4e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:01:26,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-12-14 16:01:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 37956 states, 22332 states have (on average 5.6899964176965785) internal successors, (127069), 37955 states have internal predecessors, (127069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:26,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:26,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:26,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:26,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2640098, now seen corresponding path program 1 times [2022-12-14 16:01:26,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:26,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141741053] [2022-12-14 16:01:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:27,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:27,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141741053] [2022-12-14 16:01:27,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141741053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:27,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:27,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:27,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350916601] [2022-12-14 16:01:27,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:27,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 16:01:27,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:27,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 16:01:27,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 16:01:27,242 INFO L87 Difference]: Start difference. First operand has 37956 states, 22332 states have (on average 5.6899964176965785) internal successors, (127069), 37955 states have internal predecessors, (127069), 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, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:27,760 INFO L93 Difference]: Finished difference Result 13028 states and 42749 transitions. [2022-12-14 16:01:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 16:01:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:27,844 INFO L225 Difference]: With dead ends: 13028 [2022-12-14 16:01:27,845 INFO L226 Difference]: Without dead ends: 13028 [2022-12-14 16:01:27,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 16:01:27,847 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:27,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 16:01:27,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2022-12-14 16:01:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 13028. [2022-12-14 16:01:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13028 states, 8116 states have (on average 5.267249876786594) internal successors, (42749), 13027 states have internal predecessors, (42749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13028 states to 13028 states and 42749 transitions. [2022-12-14 16:01:28,330 INFO L78 Accepts]: Start accepts. Automaton has 13028 states and 42749 transitions. Word has length 3 [2022-12-14 16:01:28,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:28,331 INFO L495 AbstractCegarLoop]: Abstraction has 13028 states and 42749 transitions. [2022-12-14 16:01:28,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:28,331 INFO L276 IsEmpty]: Start isEmpty. Operand 13028 states and 42749 transitions. [2022-12-14 16:01:28,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:28,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:28,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:28,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 16:01:28,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2640099, now seen corresponding path program 1 times [2022-12-14 16:01:28,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:28,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466712124] [2022-12-14 16:01:28,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:28,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:28,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:28,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466712124] [2022-12-14 16:01:28,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466712124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:28,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:28,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:28,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227892035] [2022-12-14 16:01:28,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:28,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:28,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:28,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:28,454 INFO L87 Difference]: Start difference. First operand 13028 states and 42749 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:28,831 INFO L93 Difference]: Finished difference Result 11692 states and 38261 transitions. [2022-12-14 16:01:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:28,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:28,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:28,900 INFO L225 Difference]: With dead ends: 11692 [2022-12-14 16:01:28,900 INFO L226 Difference]: Without dead ends: 11692 [2022-12-14 16:01:28,901 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 [2022-12-14 16:01:28,902 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 58 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:28,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 16:01:28,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2022-12-14 16:01:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 11692. [2022-12-14 16:01:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 7341 states have (on average 5.211960223402806) internal successors, (38261), 11691 states have internal predecessors, (38261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 38261 transitions. [2022-12-14 16:01:29,176 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 38261 transitions. Word has length 3 [2022-12-14 16:01:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:29,177 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 38261 transitions. [2022-12-14 16:01:29,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:29,177 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 38261 transitions. [2022-12-14 16:01:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:29,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:29,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:29,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 16:01:29,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2640100, now seen corresponding path program 1 times [2022-12-14 16:01:29,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:29,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82440277] [2022-12-14 16:01:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:29,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:29,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82440277] [2022-12-14 16:01:29,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82440277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:29,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:29,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:29,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865979680] [2022-12-14 16:01:29,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:29,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:29,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:29,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:29,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:29,330 INFO L87 Difference]: Start difference. First operand 11692 states and 38261 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:29,650 INFO L93 Difference]: Finished difference Result 10428 states and 34021 transitions. [2022-12-14 16:01:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:29,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:29,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:29,685 INFO L225 Difference]: With dead ends: 10428 [2022-12-14 16:01:29,685 INFO L226 Difference]: Without dead ends: 10428 [2022-12-14 16:01:29,685 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 [2022-12-14 16:01:29,686 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:29,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 16:01:29,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10428 states. [2022-12-14 16:01:29,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10428 to 10428. [2022-12-14 16:01:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10428 states, 6604 states have (on average 5.1515748031496065) internal successors, (34021), 10427 states have internal predecessors, (34021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10428 states to 10428 states and 34021 transitions. [2022-12-14 16:01:29,998 INFO L78 Accepts]: Start accepts. Automaton has 10428 states and 34021 transitions. Word has length 3 [2022-12-14 16:01:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:29,999 INFO L495 AbstractCegarLoop]: Abstraction has 10428 states and 34021 transitions. [2022-12-14 16:01:29,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 10428 states and 34021 transitions. [2022-12-14 16:01:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:29,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:29,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:29,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 16:01:30,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:30,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:30,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2640102, now seen corresponding path program 1 times [2022-12-14 16:01:30,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:30,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191626143] [2022-12-14 16:01:30,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:30,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:30,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:30,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191626143] [2022-12-14 16:01:30,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191626143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:30,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:30,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:30,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511262843] [2022-12-14 16:01:30,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:30,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:30,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:30,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:30,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:30,278 INFO L87 Difference]: Start difference. First operand 10428 states and 34021 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:30,581 INFO L93 Difference]: Finished difference Result 9272 states and 30163 transitions. [2022-12-14 16:01:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:30,608 INFO L225 Difference]: With dead ends: 9272 [2022-12-14 16:01:30,609 INFO L226 Difference]: Without dead ends: 9272 [2022-12-14 16:01:30,609 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 [2022-12-14 16:01:30,609 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:30,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 16:01:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9272 states. [2022-12-14 16:01:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9272 to 9272. [2022-12-14 16:01:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9272 states, 5913 states have (on average 5.101133096566887) internal successors, (30163), 9271 states have internal predecessors, (30163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9272 states to 9272 states and 30163 transitions. [2022-12-14 16:01:30,780 INFO L78 Accepts]: Start accepts. Automaton has 9272 states and 30163 transitions. Word has length 3 [2022-12-14 16:01:30,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:30,780 INFO L495 AbstractCegarLoop]: Abstraction has 9272 states and 30163 transitions. [2022-12-14 16:01:30,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:30,780 INFO L276 IsEmpty]: Start isEmpty. Operand 9272 states and 30163 transitions. [2022-12-14 16:01:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:30,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:30,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:30,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 16:01:30,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2640103, now seen corresponding path program 1 times [2022-12-14 16:01:30,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:30,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436372746] [2022-12-14 16:01:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:30,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:31,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:31,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436372746] [2022-12-14 16:01:31,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436372746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:31,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:31,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:31,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776113321] [2022-12-14 16:01:31,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:31,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:31,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:31,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:31,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:31,021 INFO L87 Difference]: Start difference. First operand 9272 states and 30163 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:31,323 INFO L93 Difference]: Finished difference Result 8184 states and 26537 transitions. [2022-12-14 16:01:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:31,349 INFO L225 Difference]: With dead ends: 8184 [2022-12-14 16:01:31,349 INFO L226 Difference]: Without dead ends: 8184 [2022-12-14 16:01:31,350 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 [2022-12-14 16:01:31,350 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:31,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 16:01:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8184 states. [2022-12-14 16:01:31,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8184 to 8184. [2022-12-14 16:01:31,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8184 states, 5260 states have (on average 5.045057034220532) internal successors, (26537), 8183 states have internal predecessors, (26537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 26537 transitions. [2022-12-14 16:01:31,518 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 26537 transitions. Word has length 3 [2022-12-14 16:01:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:31,518 INFO L495 AbstractCegarLoop]: Abstraction has 8184 states and 26537 transitions. [2022-12-14 16:01:31,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 26537 transitions. [2022-12-14 16:01:31,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:31,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:31,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:31,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 16:01:31,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:31,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2640105, now seen corresponding path program 1 times [2022-12-14 16:01:31,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:31,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338767504] [2022-12-14 16:01:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:31,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:31,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:31,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338767504] [2022-12-14 16:01:31,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338767504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:31,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:31,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:31,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496663190] [2022-12-14 16:01:31,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:31,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:31,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:31,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:31,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:31,569 INFO L87 Difference]: Start difference. First operand 8184 states and 26537 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:31,843 INFO L93 Difference]: Finished difference Result 7188 states and 23215 transitions. [2022-12-14 16:01:31,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:31,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:31,864 INFO L225 Difference]: With dead ends: 7188 [2022-12-14 16:01:31,865 INFO L226 Difference]: Without dead ends: 7188 [2022-12-14 16:01:31,865 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 [2022-12-14 16:01:31,865 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:31,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7188 states. [2022-12-14 16:01:31,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7188 to 7188. [2022-12-14 16:01:31,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7188 states, 4669 states have (on average 4.97215677875348) internal successors, (23215), 7187 states have internal predecessors, (23215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7188 states to 7188 states and 23215 transitions. [2022-12-14 16:01:32,030 INFO L78 Accepts]: Start accepts. Automaton has 7188 states and 23215 transitions. Word has length 3 [2022-12-14 16:01:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:32,030 INFO L495 AbstractCegarLoop]: Abstraction has 7188 states and 23215 transitions. [2022-12-14 16:01:32,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 7188 states and 23215 transitions. [2022-12-14 16:01:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:32,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:32,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:32,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 16:01:32,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:32,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:32,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2640106, now seen corresponding path program 1 times [2022-12-14 16:01:32,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:32,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616758210] [2022-12-14 16:01:32,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:32,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:32,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616758210] [2022-12-14 16:01:32,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616758210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:32,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:32,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:32,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343350115] [2022-12-14 16:01:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:32,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:32,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:32,090 INFO L87 Difference]: Start difference. First operand 7188 states and 23215 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:32,350 INFO L93 Difference]: Finished difference Result 6256 states and 20113 transitions. [2022-12-14 16:01:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:32,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:32,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:32,367 INFO L225 Difference]: With dead ends: 6256 [2022-12-14 16:01:32,367 INFO L226 Difference]: Without dead ends: 6256 [2022-12-14 16:01:32,368 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 [2022-12-14 16:01:32,368 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:32,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2022-12-14 16:01:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 6256. [2022-12-14 16:01:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 4112 states have (on average 4.891293774319066) internal successors, (20113), 6255 states have internal predecessors, (20113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 20113 transitions. [2022-12-14 16:01:32,463 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 20113 transitions. Word has length 3 [2022-12-14 16:01:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:32,463 INFO L495 AbstractCegarLoop]: Abstraction has 6256 states and 20113 transitions. [2022-12-14 16:01:32,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 20113 transitions. [2022-12-14 16:01:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:32,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:32,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:32,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 16:01:32,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2640087, now seen corresponding path program 1 times [2022-12-14 16:01:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:32,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895889390] [2022-12-14 16:01:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:32,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:32,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895889390] [2022-12-14 16:01:32,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895889390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:32,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:32,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:32,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784467172] [2022-12-14 16:01:32,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:32,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:32,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:32,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:32,529 INFO L87 Difference]: Start difference. First operand 6256 states and 20113 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:32,758 INFO L93 Difference]: Finished difference Result 5388 states and 17231 transitions. [2022-12-14 16:01:32,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:32,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:32,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:32,770 INFO L225 Difference]: With dead ends: 5388 [2022-12-14 16:01:32,770 INFO L226 Difference]: Without dead ends: 5388 [2022-12-14 16:01:32,770 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 [2022-12-14 16:01:32,771 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:32,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5388 states. [2022-12-14 16:01:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5388 to 5388. [2022-12-14 16:01:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5388 states, 3589 states have (on average 4.801058790749512) internal successors, (17231), 5387 states have internal predecessors, (17231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5388 states to 5388 states and 17231 transitions. [2022-12-14 16:01:32,847 INFO L78 Accepts]: Start accepts. Automaton has 5388 states and 17231 transitions. Word has length 3 [2022-12-14 16:01:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:32,847 INFO L495 AbstractCegarLoop]: Abstraction has 5388 states and 17231 transitions. [2022-12-14 16:01:32,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5388 states and 17231 transitions. [2022-12-14 16:01:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:32,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:32,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:32,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 16:01:32,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:32,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2640088, now seen corresponding path program 1 times [2022-12-14 16:01:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:32,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749968809] [2022-12-14 16:01:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:32,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:32,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749968809] [2022-12-14 16:01:32,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749968809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:32,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:32,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:32,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301684618] [2022-12-14 16:01:32,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:32,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:32,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:32,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:32,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:32,904 INFO L87 Difference]: Start difference. First operand 5388 states and 17231 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:33,136 INFO L93 Difference]: Finished difference Result 4584 states and 14569 transitions. [2022-12-14 16:01:33,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:33,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:33,149 INFO L225 Difference]: With dead ends: 4584 [2022-12-14 16:01:33,149 INFO L226 Difference]: Without dead ends: 4584 [2022-12-14 16:01:33,149 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 [2022-12-14 16:01:33,149 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:33,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:33,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2022-12-14 16:01:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4584. [2022-12-14 16:01:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 3100 states have (on average 4.699677419354838) internal successors, (14569), 4583 states have internal predecessors, (14569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 14569 transitions. [2022-12-14 16:01:33,249 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 14569 transitions. Word has length 3 [2022-12-14 16:01:33,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:33,250 INFO L495 AbstractCegarLoop]: Abstraction has 4584 states and 14569 transitions. [2022-12-14 16:01:33,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 14569 transitions. [2022-12-14 16:01:33,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:33,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:33,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:33,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 16:01:33,251 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:33,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:33,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2640090, now seen corresponding path program 1 times [2022-12-14 16:01:33,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:33,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81905623] [2022-12-14 16:01:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:33,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:33,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:33,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81905623] [2022-12-14 16:01:33,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81905623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:33,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:33,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:33,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496273793] [2022-12-14 16:01:33,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:33,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:33,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:33,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:33,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:33,363 INFO L87 Difference]: Start difference. First operand 4584 states and 14569 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:33,578 INFO L93 Difference]: Finished difference Result 3908 states and 12347 transitions. [2022-12-14 16:01:33,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:33,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:33,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:33,588 INFO L225 Difference]: With dead ends: 3908 [2022-12-14 16:01:33,588 INFO L226 Difference]: Without dead ends: 3908 [2022-12-14 16:01:33,588 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 [2022-12-14 16:01:33,588 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:33,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:33,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2022-12-14 16:01:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3908. [2022-12-14 16:01:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 2677 states have (on average 4.612252521479268) internal successors, (12347), 3907 states have internal predecessors, (12347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 12347 transitions. [2022-12-14 16:01:33,645 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 12347 transitions. Word has length 3 [2022-12-14 16:01:33,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:33,646 INFO L495 AbstractCegarLoop]: Abstraction has 3908 states and 12347 transitions. [2022-12-14 16:01:33,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 12347 transitions. [2022-12-14 16:01:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:33,646 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:33,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:33,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 16:01:33,646 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:33,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:33,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2640091, now seen corresponding path program 1 times [2022-12-14 16:01:33,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:33,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634427894] [2022-12-14 16:01:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:33,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:33,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:33,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634427894] [2022-12-14 16:01:33,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634427894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:33,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:33,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:33,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583130939] [2022-12-14 16:01:33,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:33,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:33,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:33,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:33,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:33,724 INFO L87 Difference]: Start difference. First operand 3908 states and 12347 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:33,897 INFO L93 Difference]: Finished difference Result 3284 states and 10301 transitions. [2022-12-14 16:01:33,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:33,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:33,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:33,905 INFO L225 Difference]: With dead ends: 3284 [2022-12-14 16:01:33,905 INFO L226 Difference]: Without dead ends: 3284 [2022-12-14 16:01:33,905 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 [2022-12-14 16:01:33,906 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:33,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3284 states. [2022-12-14 16:01:33,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3284 to 3284. [2022-12-14 16:01:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 2284 states have (on average 4.510070052539405) internal successors, (10301), 3283 states have internal predecessors, (10301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 10301 transitions. [2022-12-14 16:01:33,959 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 10301 transitions. Word has length 3 [2022-12-14 16:01:33,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:33,959 INFO L495 AbstractCegarLoop]: Abstraction has 3284 states and 10301 transitions. [2022-12-14 16:01:33,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 10301 transitions. [2022-12-14 16:01:33,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:33,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:33,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:33,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 16:01:33,960 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:33,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:33,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2640108, now seen corresponding path program 1 times [2022-12-14 16:01:33,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:33,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672580138] [2022-12-14 16:01:33,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:33,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:34,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:34,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672580138] [2022-12-14 16:01:34,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672580138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:34,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:34,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:34,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425955692] [2022-12-14 16:01:34,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:34,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:34,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:34,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:34,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:34,090 INFO L87 Difference]: Start difference. First operand 3284 states and 10301 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:34,272 INFO L93 Difference]: Finished difference Result 2712 states and 8431 transitions. [2022-12-14 16:01:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:34,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:34,278 INFO L225 Difference]: With dead ends: 2712 [2022-12-14 16:01:34,278 INFO L226 Difference]: Without dead ends: 2712 [2022-12-14 16:01:34,278 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 [2022-12-14 16:01:34,278 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:34,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-12-14 16:01:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2712. [2022-12-14 16:01:34,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 1921 states have (on average 4.388859968766267) internal successors, (8431), 2711 states have internal predecessors, (8431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 8431 transitions. [2022-12-14 16:01:34,313 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 8431 transitions. Word has length 3 [2022-12-14 16:01:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:34,313 INFO L495 AbstractCegarLoop]: Abstraction has 2712 states and 8431 transitions. [2022-12-14 16:01:34,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 8431 transitions. [2022-12-14 16:01:34,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:34,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:34,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:34,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 16:01:34,314 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:34,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:34,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2640109, now seen corresponding path program 1 times [2022-12-14 16:01:34,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:34,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969592044] [2022-12-14 16:01:34,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:34,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:34,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:34,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:34,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969592044] [2022-12-14 16:01:34,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969592044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:34,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:34,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:34,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802954276] [2022-12-14 16:01:34,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:34,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:34,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:34,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:34,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:34,421 INFO L87 Difference]: Start difference. First operand 2712 states and 8431 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:34,585 INFO L93 Difference]: Finished difference Result 2192 states and 6737 transitions. [2022-12-14 16:01:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:34,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:34,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:34,590 INFO L225 Difference]: With dead ends: 2192 [2022-12-14 16:01:34,590 INFO L226 Difference]: Without dead ends: 2192 [2022-12-14 16:01:34,590 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 [2022-12-14 16:01:34,591 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:34,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 16:01:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2022-12-14 16:01:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2192. [2022-12-14 16:01:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1588 states have (on average 4.242443324937028) internal successors, (6737), 2191 states have internal predecessors, (6737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 6737 transitions. [2022-12-14 16:01:34,617 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 6737 transitions. Word has length 3 [2022-12-14 16:01:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:34,617 INFO L495 AbstractCegarLoop]: Abstraction has 2192 states and 6737 transitions. [2022-12-14 16:01:34,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 6737 transitions. [2022-12-14 16:01:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:34,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:34,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:34,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 16:01:34,617 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:34,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:34,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2640093, now seen corresponding path program 1 times [2022-12-14 16:01:34,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:34,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877741080] [2022-12-14 16:01:34,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:34,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:34,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:34,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877741080] [2022-12-14 16:01:34,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877741080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:34,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:34,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:34,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570959439] [2022-12-14 16:01:34,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:34,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:34,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:34,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:34,656 INFO L87 Difference]: Start difference. First operand 2192 states and 6737 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:34,801 INFO L93 Difference]: Finished difference Result 1732 states and 5243 transitions. [2022-12-14 16:01:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:34,805 INFO L225 Difference]: With dead ends: 1732 [2022-12-14 16:01:34,805 INFO L226 Difference]: Without dead ends: 1732 [2022-12-14 16:01:34,806 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 [2022-12-14 16:01:34,806 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:34,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2022-12-14 16:01:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1732. [2022-12-14 16:01:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1293 states have (on average 4.054911059551431) internal successors, (5243), 1731 states have internal predecessors, (5243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 5243 transitions. [2022-12-14 16:01:34,826 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 5243 transitions. Word has length 3 [2022-12-14 16:01:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:34,826 INFO L495 AbstractCegarLoop]: Abstraction has 1732 states and 5243 transitions. [2022-12-14 16:01:34,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 5243 transitions. [2022-12-14 16:01:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:34,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:34,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:34,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 16:01:34,827 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:34,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2640094, now seen corresponding path program 1 times [2022-12-14 16:01:34,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:34,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094174940] [2022-12-14 16:01:34,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:34,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:34,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:34,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094174940] [2022-12-14 16:01:34,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094174940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:34,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:34,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580681858] [2022-12-14 16:01:34,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:34,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:34,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:34,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:34,869 INFO L87 Difference]: Start difference. First operand 1732 states and 5243 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:34,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:34,982 INFO L93 Difference]: Finished difference Result 1320 states and 3913 transitions. [2022-12-14 16:01:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:34,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:34,985 INFO L225 Difference]: With dead ends: 1320 [2022-12-14 16:01:34,985 INFO L226 Difference]: Without dead ends: 1320 [2022-12-14 16:01:34,985 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 [2022-12-14 16:01:34,994 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:34,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-12-14 16:01:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2022-12-14 16:01:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1024 states have (on average 3.8212890625) internal successors, (3913), 1319 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 3913 transitions. [2022-12-14 16:01:35,011 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 3913 transitions. Word has length 3 [2022-12-14 16:01:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:35,011 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 3913 transitions. [2022-12-14 16:01:35,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 3913 transitions. [2022-12-14 16:01:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:35,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:35,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:35,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 16:01:35,012 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:35,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:35,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2640096, now seen corresponding path program 1 times [2022-12-14 16:01:35,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:35,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640692402] [2022-12-14 16:01:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:35,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:35,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:35,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640692402] [2022-12-14 16:01:35,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640692402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:35,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:35,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:35,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132208630] [2022-12-14 16:01:35,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:35,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:35,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:35,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:35,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:35,104 INFO L87 Difference]: Start difference. First operand 1320 states and 3913 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:35,250 INFO L93 Difference]: Finished difference Result 968 states and 2785 transitions. [2022-12-14 16:01:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:35,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:35,254 INFO L225 Difference]: With dead ends: 968 [2022-12-14 16:01:35,254 INFO L226 Difference]: Without dead ends: 968 [2022-12-14 16:01:35,254 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 [2022-12-14 16:01:35,255 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:35,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-12-14 16:01:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-12-14 16:01:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 789 states have (on average 3.5297845373891) internal successors, (2785), 967 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 2785 transitions. [2022-12-14 16:01:35,272 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 2785 transitions. Word has length 3 [2022-12-14 16:01:35,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:35,272 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 2785 transitions. [2022-12-14 16:01:35,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,272 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 2785 transitions. [2022-12-14 16:01:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 16:01:35,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:35,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 16:01:35,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 16:01:35,273 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2640097, now seen corresponding path program 1 times [2022-12-14 16:01:35,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:35,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21093545] [2022-12-14 16:01:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:35,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:35,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21093545] [2022-12-14 16:01:35,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21093545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:35,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:35,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941602892] [2022-12-14 16:01:35,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:35,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:35,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:35,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:35,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:35,349 INFO L87 Difference]: Start difference. First operand 968 states and 2785 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:35,448 INFO L93 Difference]: Finished difference Result 660 states and 1805 transitions. [2022-12-14 16:01:35,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:35,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 16:01:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:35,450 INFO L225 Difference]: With dead ends: 660 [2022-12-14 16:01:35,450 INFO L226 Difference]: Without dead ends: 658 [2022-12-14 16:01:35,450 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 [2022-12-14 16:01:35,450 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:35,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:35,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-12-14 16:01:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2022-12-14 16:01:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 578 states have (on average 3.114186851211073) internal successors, (1800), 657 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1800 transitions. [2022-12-14 16:01:35,459 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1800 transitions. Word has length 3 [2022-12-14 16:01:35,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:35,459 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1800 transitions. [2022-12-14 16:01:35,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1800 transitions. [2022-12-14 16:01:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:35,459 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:35,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:35,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 16:01:35,459 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:35,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594481, now seen corresponding path program 1 times [2022-12-14 16:01:35,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:35,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561454140] [2022-12-14 16:01:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:35,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:35,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:35,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561454140] [2022-12-14 16:01:35,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561454140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:35,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:35,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846830853] [2022-12-14 16:01:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:35,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:35,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:35,492 INFO L87 Difference]: Start difference. First operand 658 states and 1800 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:35,590 INFO L93 Difference]: Finished difference Result 538 states and 1456 transitions. [2022-12-14 16:01:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:35,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:35,591 INFO L225 Difference]: With dead ends: 538 [2022-12-14 16:01:35,591 INFO L226 Difference]: Without dead ends: 538 [2022-12-14 16:01:35,591 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 [2022-12-14 16:01:35,591 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:35,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-14 16:01:35,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-12-14 16:01:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 475 states have (on average 3.0652631578947367) internal successors, (1456), 537 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1456 transitions. [2022-12-14 16:01:35,598 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1456 transitions. Word has length 5 [2022-12-14 16:01:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:35,598 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 1456 transitions. [2022-12-14 16:01:35,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1456 transitions. [2022-12-14 16:01:35,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:35,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:35,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:35,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 16:01:35,598 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:35,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594480, now seen corresponding path program 1 times [2022-12-14 16:01:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:35,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725129178] [2022-12-14 16:01:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:35,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:35,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:35,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725129178] [2022-12-14 16:01:35,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725129178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:35,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:35,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:35,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774085767] [2022-12-14 16:01:35,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:35,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:35,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:35,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:35,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:35,639 INFO L87 Difference]: Start difference. First operand 538 states and 1456 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:35,733 INFO L93 Difference]: Finished difference Result 430 states and 1148 transitions. [2022-12-14 16:01:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:35,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:35,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:35,735 INFO L225 Difference]: With dead ends: 430 [2022-12-14 16:01:35,735 INFO L226 Difference]: Without dead ends: 430 [2022-12-14 16:01:35,735 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 [2022-12-14 16:01:35,735 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:35,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:35,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-12-14 16:01:35,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2022-12-14 16:01:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 382 states have (on average 3.005235602094241) internal successors, (1148), 429 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1148 transitions. [2022-12-14 16:01:35,740 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1148 transitions. Word has length 5 [2022-12-14 16:01:35,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:35,740 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 1148 transitions. [2022-12-14 16:01:35,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1148 transitions. [2022-12-14 16:01:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:35,741 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:35,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:35,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 16:01:35,741 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:35,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594463, now seen corresponding path program 1 times [2022-12-14 16:01:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:35,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367415949] [2022-12-14 16:01:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:35,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:35,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367415949] [2022-12-14 16:01:35,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367415949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:35,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:35,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:35,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242976143] [2022-12-14 16:01:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:35,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:35,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:35,799 INFO L87 Difference]: Start difference. First operand 430 states and 1148 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:35,908 INFO L93 Difference]: Finished difference Result 334 states and 876 transitions. [2022-12-14 16:01:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:35,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:35,909 INFO L225 Difference]: With dead ends: 334 [2022-12-14 16:01:35,910 INFO L226 Difference]: Without dead ends: 334 [2022-12-14 16:01:35,910 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 [2022-12-14 16:01:35,910 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:35,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:35,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-12-14 16:01:35,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-12-14 16:01:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 299 states have (on average 2.9297658862876252) internal successors, (876), 333 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 876 transitions. [2022-12-14 16:01:35,916 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 876 transitions. Word has length 5 [2022-12-14 16:01:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:35,916 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 876 transitions. [2022-12-14 16:01:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 876 transitions. [2022-12-14 16:01:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:35,916 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:35,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:35,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 16:01:35,917 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:35,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594462, now seen corresponding path program 1 times [2022-12-14 16:01:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:35,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953514927] [2022-12-14 16:01:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:35,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:35,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953514927] [2022-12-14 16:01:35,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953514927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:35,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:35,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121245218] [2022-12-14 16:01:35,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:35,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:35,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:35,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:35,976 INFO L87 Difference]: Start difference. First operand 334 states and 876 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:36,053 INFO L93 Difference]: Finished difference Result 250 states and 640 transitions. [2022-12-14 16:01:36,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:36,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:36,054 INFO L225 Difference]: With dead ends: 250 [2022-12-14 16:01:36,054 INFO L226 Difference]: Without dead ends: 250 [2022-12-14 16:01:36,054 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 [2022-12-14 16:01:36,055 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:36,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-14 16:01:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2022-12-14 16:01:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 226 states have (on average 2.831858407079646) internal successors, (640), 249 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 640 transitions. [2022-12-14 16:01:36,058 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 640 transitions. Word has length 5 [2022-12-14 16:01:36,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:36,058 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 640 transitions. [2022-12-14 16:01:36,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,058 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 640 transitions. [2022-12-14 16:01:36,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:36,059 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:36,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:36,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 16:01:36,059 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:36,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594475, now seen corresponding path program 1 times [2022-12-14 16:01:36,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:36,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847525443] [2022-12-14 16:01:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:36,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:36,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:36,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:36,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847525443] [2022-12-14 16:01:36,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847525443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:36,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:36,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738246725] [2022-12-14 16:01:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:36,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:36,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:36,092 INFO L87 Difference]: Start difference. First operand 250 states and 640 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:36,170 INFO L93 Difference]: Finished difference Result 178 states and 440 transitions. [2022-12-14 16:01:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:36,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:36,171 INFO L225 Difference]: With dead ends: 178 [2022-12-14 16:01:36,171 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 16:01:36,171 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 [2022-12-14 16:01:36,172 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:36,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 16:01:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-12-14 16:01:36,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 163 states have (on average 2.6993865030674846) internal successors, (440), 177 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 440 transitions. [2022-12-14 16:01:36,174 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 440 transitions. Word has length 5 [2022-12-14 16:01:36,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:36,174 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 440 transitions. [2022-12-14 16:01:36,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,175 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 440 transitions. [2022-12-14 16:01:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:36,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:36,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:36,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 16:01:36,175 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:36,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594474, now seen corresponding path program 1 times [2022-12-14 16:01:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:36,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779127441] [2022-12-14 16:01:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:36,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779127441] [2022-12-14 16:01:36,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779127441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:36,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:36,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347315825] [2022-12-14 16:01:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:36,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:36,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:36,210 INFO L87 Difference]: Start difference. First operand 178 states and 440 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:36,275 INFO L93 Difference]: Finished difference Result 118 states and 276 transitions. [2022-12-14 16:01:36,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:36,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:36,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:36,276 INFO L225 Difference]: With dead ends: 118 [2022-12-14 16:01:36,276 INFO L226 Difference]: Without dead ends: 118 [2022-12-14 16:01:36,276 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 [2022-12-14 16:01:36,276 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:36,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:36,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-14 16:01:36,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-14 16:01:36,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 2.5090909090909093) internal successors, (276), 117 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 276 transitions. [2022-12-14 16:01:36,279 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 276 transitions. Word has length 5 [2022-12-14 16:01:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:36,279 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 276 transitions. [2022-12-14 16:01:36,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 276 transitions. [2022-12-14 16:01:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:36,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:36,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:36,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 16:01:36,280 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:36,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594469, now seen corresponding path program 1 times [2022-12-14 16:01:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:36,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983201312] [2022-12-14 16:01:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:36,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:36,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983201312] [2022-12-14 16:01:36,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983201312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:36,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:36,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:36,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286253772] [2022-12-14 16:01:36,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:36,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:36,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:36,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:36,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:36,317 INFO L87 Difference]: Start difference. First operand 118 states and 276 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:36,371 INFO L93 Difference]: Finished difference Result 70 states and 148 transitions. [2022-12-14 16:01:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:36,371 INFO L225 Difference]: With dead ends: 70 [2022-12-14 16:01:36,371 INFO L226 Difference]: Without dead ends: 70 [2022-12-14 16:01:36,372 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 [2022-12-14 16:01:36,372 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:36,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 16:01:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-14 16:01:36,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-12-14 16:01:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 67 states have (on average 2.208955223880597) internal successors, (148), 69 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 148 transitions. [2022-12-14 16:01:36,373 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 148 transitions. Word has length 5 [2022-12-14 16:01:36,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:36,373 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 148 transitions. [2022-12-14 16:01:36,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,374 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 148 transitions. [2022-12-14 16:01:36,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 16:01:36,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:01:36,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 16:01:36,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 16:01:36,374 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 16:01:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:01:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1757594468, now seen corresponding path program 1 times [2022-12-14 16:01:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:01:36,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187256113] [2022-12-14 16:01:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:01:36,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:01:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:01:36,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:36,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187256113] [2022-12-14 16:01:36,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187256113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:36,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:01:36,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:01:36,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154001860] [2022-12-14 16:01:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:36,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:01:36,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:36,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:01:36,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:01:36,451 INFO L87 Difference]: Start difference. First operand 70 states and 148 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:01:36,488 INFO L93 Difference]: Finished difference Result 34 states and 56 transitions. [2022-12-14 16:01:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:01:36,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 16:01:36,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:01:36,488 INFO L225 Difference]: With dead ends: 34 [2022-12-14 16:01:36,489 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 16:01:36,489 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 [2022-12-14 16:01:36,489 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:01:36,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 16:01:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 16:01:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 16:01:36,490 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) [2022-12-14 16:01:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 16:01:36,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-12-14 16:01:36,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:01:36,490 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 16:01:36,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 16:01:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 16:01:36,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 16:01:36,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 147 remaining) [2022-12-14 16:01:36,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 147 remaining) [2022-12-14 16:01:36,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 147 remaining) [2022-12-14 16:01:36,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 147 remaining) [2022-12-14 16:01:36,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 147 remaining) [2022-12-14 16:01:36,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 147 remaining) [2022-12-14 16:01:36,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 147 remaining) [2022-12-14 16:01:36,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 147 remaining) [2022-12-14 16:01:36,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 147 remaining) [2022-12-14 16:01:36,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 147 remaining) [2022-12-14 16:01:36,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 147 remaining) [2022-12-14 16:01:36,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 147 remaining) [2022-12-14 16:01:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 147 remaining) [2022-12-14 16:01:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 147 remaining) [2022-12-14 16:01:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 147 remaining) [2022-12-14 16:01:36,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 147 remaining) [2022-12-14 16:01:36,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 147 remaining) [2022-12-14 16:01:36,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 147 remaining) [2022-12-14 16:01:36,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 147 remaining) [2022-12-14 16:01:36,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 147 remaining) [2022-12-14 16:01:36,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 147 remaining) [2022-12-14 16:01:36,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 147 remaining) [2022-12-14 16:01:36,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 147 remaining) [2022-12-14 16:01:36,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 16:01:36,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:01:36,513 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 16:01:36,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 16:01:36,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:01:36 BasicIcfg [2022-12-14 16:01:36,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 16:01:36,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 16:01:36,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 16:01:36,516 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 16:01:36,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:22" (3/4) ... [2022-12-14 16:01:36,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 16:01:36,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-14 16:01:36,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-14 16:01:36,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-14 16:01:36,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-14 16:01:36,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 16:01:36,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 16:01:36,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 16:01:36,557 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 16:01:36,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 16:01:36,558 INFO L158 Benchmark]: Toolchain (without parser) took 77646.63ms. Allocated memory was 132.1MB in the beginning and 912.3MB in the end (delta: 780.1MB). Free memory was 89.1MB in the beginning and 484.1MB in the end (delta: -395.0MB). Peak memory consumption was 387.6MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,558 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:01:36,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.19ms. Allocated memory is still 132.1MB. Free memory was 89.1MB in the beginning and 76.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.42ms. Allocated memory is still 132.1MB. Free memory was 76.5MB in the beginning and 73.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,558 INFO L158 Benchmark]: Boogie Preprocessor took 28.13ms. Allocated memory is still 132.1MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,558 INFO L158 Benchmark]: RCFGBuilder took 3561.69ms. Allocated memory was 132.1MB in the beginning and 276.8MB in the end (delta: 144.7MB). Free memory was 70.6MB in the beginning and 100.7MB in the end (delta: -30.0MB). Peak memory consumption was 167.6MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,559 INFO L158 Benchmark]: TraceAbstraction took 73751.12ms. Allocated memory was 276.8MB in the beginning and 912.3MB in the end (delta: 635.4MB). Free memory was 99.6MB in the beginning and 488.3MB in the end (delta: -388.7MB). Peak memory consumption was 246.7MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,559 INFO L158 Benchmark]: Witness Printer took 41.20ms. Allocated memory is still 912.3MB. Free memory was 488.3MB in the beginning and 484.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 16:01:36,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.19ms. Allocated memory is still 132.1MB. Free memory was 89.1MB in the beginning and 76.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.42ms. Allocated memory is still 132.1MB. Free memory was 76.5MB in the beginning and 73.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.13ms. Allocated memory is still 132.1MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3561.69ms. Allocated memory was 132.1MB in the beginning and 276.8MB in the end (delta: 144.7MB). Free memory was 70.6MB in the beginning and 100.7MB in the end (delta: -30.0MB). Peak memory consumption was 167.6MB. Max. memory is 16.1GB. * TraceAbstraction took 73751.12ms. Allocated memory was 276.8MB in the beginning and 912.3MB in the end (delta: 635.4MB). Free memory was 99.6MB in the beginning and 488.3MB in the end (delta: -388.7MB). Peak memory consumption was 246.7MB. Max. memory is 16.1GB. * Witness Printer took 41.20ms. Allocated memory is still 912.3MB. Free memory was 488.3MB in the beginning and 484.1MB in the end (delta: 4.2MB). 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: 62.3s, 212 PlacesBefore, 101 PlacesAfterwards, 204 TransitionsBefore, 91 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 8 FixpointIterations, 93 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 124 TotalNumberOfCompositions, 4906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4906, independent: 4906, independent conditional: 0, independent unconditional: 4906, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1369, independent: 1369, independent conditional: 0, independent unconditional: 1369, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1369, independent: 1369, independent conditional: 0, independent unconditional: 1369, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4906, independent: 3537, independent conditional: 0, independent unconditional: 3537, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1369, unknown conditional: 0, unknown unconditional: 1369] , Statistics on independence cache: Total cache size (in pairs): 390, Positive cache size: 390, Positive conditional cache size: 0, Positive unconditional cache size: 390, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: 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 7 procedures, 290 locations, 147 error locations. Started 1 CEGAR loops. OverallTime: 72.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 63.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 824 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 950 IncrementalHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 0 mSDtfsCounter, 950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37956occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 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 72 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 16:01:36,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64876e7-f9ec-40b9-8b08-01fa9bc3c1be/bin/utaipan-gh47qXpMRh/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