./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur --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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- 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-38b53e6 [2022-11-25 22:31:55,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:31:55,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:31:55,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:31:55,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:31:55,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:31:55,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:31:55,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:31:55,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:31:55,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:31:55,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:31:55,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:31:55,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:31:55,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:31:55,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:31:55,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:31:55,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:31:55,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:31:55,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:31:55,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:31:55,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:31:55,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:31:55,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:31:55,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:31:55,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:31:55,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:31:55,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:31:55,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:31:55,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:31:55,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:31:55,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:31:55,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:31:55,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:31:55,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:31:55,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:31:55,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:31:55,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:31:55,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:31:55,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:31:55,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:31:55,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:31:55,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:31:55,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:31:55,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:31:55,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:31:55,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:31:55,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:31:55,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:31:55,217 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:31:55,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:31:55,218 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:31:55,218 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:31:55,219 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:31:55,219 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:31:55,219 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:31:55,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:31:55,220 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:31:55,220 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:31:55,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:31:55,221 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:31:55,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:31:55,222 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:31:55,222 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:31:55,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:31:55,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:31:55,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:31:55,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:31:55,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:31:55,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:31:55,224 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:31:55,224 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:31:55,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:31:55,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:31:55,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:31:55,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:31:55,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:31:55,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:31:55,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:31:55,227 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:31:55,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:31:55,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:31:55,227 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:31:55,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:31:55,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:31:55,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:31:55,228 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_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-25 22:31:55,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:31:55,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:31:55,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:31:55,597 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:31:55,598 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:31:55,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-25 22:31:58,528 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:31:58,729 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:31:58,729 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-25 22:31:58,736 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/data/8886e229b/ff790412deff441fa9302052ea0b949e/FLAGd7965145d [2022-11-25 22:31:58,749 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/data/8886e229b/ff790412deff441fa9302052ea0b949e [2022-11-25 22:31:58,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:31:58,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:31:58,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:31:58,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:31:58,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:31:58,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:31:58" (1/1) ... [2022-11-25 22:31:58,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1bfd95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:58, skipping insertion in model container [2022-11-25 22:31:58,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:31:58" (1/1) ... [2022-11-25 22:31:58,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:31:58,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:31:58,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:58,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:58,988 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_c57825b3-ad99-43fd-a153-6bf42945cdfa/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-25 22:31:58,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:31:59,006 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:31:59,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:31:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:31:59,055 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_c57825b3-ad99-43fd-a153-6bf42945cdfa/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-25 22:31:59,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:31:59,074 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:31:59,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59 WrapperNode [2022-11-25 22:31:59,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:31:59,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:31:59,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:31:59,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:31:59,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,137 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 492 [2022-11-25 22:31:59,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:31:59,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:31:59,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:31:59,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:31:59,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:31:59,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:31:59,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:31:59,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:31:59,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (1/1) ... [2022-11-25 22:31:59,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:31:59,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:31:59,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:31:59,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:31:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:31:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:31:59,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:31:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:31:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 22:31:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 22:31:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 22:31:59,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 22:31:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 22:31:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 22:31:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 22:31:59,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 22:31:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:31:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 22:31:59,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 22:31:59,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:31:59,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:31:59,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:31:59,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:31:59,322 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:31:59,522 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:31:59,525 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:32:00,548 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:32:00,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:32:00,975 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-25 22:32:00,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:00 BoogieIcfgContainer [2022-11-25 22:32:00,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:32:00,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:32:00,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:32:00,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:32:00,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:31:58" (1/3) ... [2022-11-25 22:32:00,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eff1aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:00, skipping insertion in model container [2022-11-25 22:32:00,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:59" (2/3) ... [2022-11-25 22:32:00,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eff1aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:00, skipping insertion in model container [2022-11-25 22:32:00,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:00" (3/3) ... [2022-11-25 22:32:00,992 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-11-25 22:32:01,001 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:32:01,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:32:01,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-25 22:32:01,012 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:32:01,206 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 22:32:01,267 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:32:01,300 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 395 transitions, 822 flow [2022-11-25 22:32:01,310 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 395 transitions, 822 flow [2022-11-25 22:32:01,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 371 places, 395 transitions, 822 flow [2022-11-25 22:32:01,459 INFO L130 PetriNetUnfolder]: 37/391 cut-off events. [2022-11-25 22:32:01,459 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 22:32:01,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 391 events. 37/391 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 403 event pairs, 0 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 344. Up to 8 conditions per place. [2022-11-25 22:32:01,474 INFO L119 LiptonReduction]: Number of co-enabled transitions 8592 [2022-11-25 22:32:24,541 INFO L134 LiptonReduction]: Checked pairs total: 12070 [2022-11-25 22:32:24,542 INFO L136 LiptonReduction]: Total number of compositions: 468 [2022-11-25 22:32:24,555 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 69 transitions, 170 flow [2022-11-25 22:32:24,967 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7774 states, 6142 states have (on average 5.497720612178443) internal successors, (33767), 7773 states have internal predecessors, (33767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:24,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:32:25,007 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;@53c13bb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:32:25,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-11-25 22:32:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 7774 states, 6142 states have (on average 5.497720612178443) internal successors, (33767), 7773 states have internal predecessors, (33767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:25,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-25 22:32:25,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:25,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-25 22:32:25,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:25,069 INFO L85 PathProgramCache]: Analyzing trace with hash 67064, now seen corresponding path program 1 times [2022-11-25 22:32:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:25,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857214059] [2022-11-25 22:32:25,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:25,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:25,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:25,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857214059] [2022-11-25 22:32:25,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857214059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:25,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:25,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:32:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441331652] [2022-11-25 22:32:25,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:25,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:25,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:25,545 INFO L87 Difference]: Start difference. First operand has 7774 states, 6142 states have (on average 5.497720612178443) internal successors, (33767), 7773 states have internal predecessors, (33767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:25,866 INFO L93 Difference]: Finished difference Result 3059 states and 12933 transitions. [2022-11-25 22:32:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-25 22:32:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:25,919 INFO L225 Difference]: With dead ends: 3059 [2022-11-25 22:32:25,920 INFO L226 Difference]: Without dead ends: 3059 [2022-11-25 22:32:25,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:25,924 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:25,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:32:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2022-11-25 22:32:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 1538. [2022-11-25 22:32:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1342 states have (on average 4.827868852459017) internal successors, (6479), 1537 states have internal predecessors, (6479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 6479 transitions. [2022-11-25 22:32:26,168 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 6479 transitions. Word has length 2 [2022-11-25 22:32:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:26,168 INFO L495 AbstractCegarLoop]: Abstraction has 1538 states and 6479 transitions. [2022-11-25 22:32:26,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:26,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 6479 transitions. [2022-11-25 22:32:26,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 22:32:26,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:26,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 22:32:26,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:32:26,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2082963, now seen corresponding path program 1 times [2022-11-25 22:32:26,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:26,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178573423] [2022-11-25 22:32:26,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:26,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:26,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:26,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178573423] [2022-11-25 22:32:26,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178573423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:26,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:26,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:32:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465239485] [2022-11-25 22:32:26,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:26,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:26,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:26,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:26,247 INFO L87 Difference]: Start difference. First operand 1538 states and 6479 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-25 22:32:26,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:26,374 INFO L93 Difference]: Finished difference Result 1534 states and 6475 transitions. [2022-11-25 22:32:26,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:26,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2022-11-25 22:32:26,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:26,388 INFO L225 Difference]: With dead ends: 1534 [2022-11-25 22:32:26,388 INFO L226 Difference]: Without dead ends: 1534 [2022-11-25 22:32:26,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:26,390 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:26,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:26,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-11-25 22:32:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1534. [2022-11-25 22:32:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1342 states have (on average 4.8248882265275705) internal successors, (6475), 1533 states have internal predecessors, (6475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:26,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 6475 transitions. [2022-11-25 22:32:26,465 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 6475 transitions. Word has length 3 [2022-11-25 22:32:26,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:26,466 INFO L495 AbstractCegarLoop]: Abstraction has 1534 states and 6475 transitions. [2022-11-25 22:32:26,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-25 22:32:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 6475 transitions. [2022-11-25 22:32:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 22:32:26,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:26,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 22:32:26,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:32:26,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:26,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:26,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2083029, now seen corresponding path program 1 times [2022-11-25 22:32:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:26,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609583273] [2022-11-25 22:32:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:26,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:26,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609583273] [2022-11-25 22:32:26,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609583273] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846262357] [2022-11-25 22:32:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:26,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:26,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:26,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:26,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:32:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:26,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:32:26,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:26,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:32:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:26,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846262357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:32:26,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [74197442] [2022-11-25 22:32:26,847 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 22:32:26,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:32:26,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-25 22:32:26,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539038223] [2022-11-25 22:32:26,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:32:26,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:32:26,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:26,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:32:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:32:26,851 INFO L87 Difference]: Start difference. First operand 1534 states and 6475 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:27,594 INFO L93 Difference]: Finished difference Result 7630 states and 32315 transitions. [2022-11-25 22:32:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:32:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 22:32:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:27,673 INFO L225 Difference]: With dead ends: 7630 [2022-11-25 22:32:27,674 INFO L226 Difference]: Without dead ends: 7630 [2022-11-25 22:32:27,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:32:27,675 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 280 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:27,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 0 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:32:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7630 states. [2022-11-25 22:32:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7630 to 1546. [2022-11-25 22:32:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1354 states have (on average 4.799852289512556) internal successors, (6499), 1545 states have internal predecessors, (6499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:27,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 6499 transitions. [2022-11-25 22:32:27,825 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 6499 transitions. Word has length 3 [2022-11-25 22:32:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:27,826 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 6499 transitions. [2022-11-25 22:32:27,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 6499 transitions. [2022-11-25 22:32:27,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:32:27,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:27,829 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-25 22:32:27,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:32:28,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-25 22:32:28,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:28,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:28,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1927959802, now seen corresponding path program 2 times [2022-11-25 22:32:28,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:28,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537948293] [2022-11-25 22:32:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:28,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:28,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:28,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537948293] [2022-11-25 22:32:28,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537948293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614237101] [2022-11-25 22:32:28,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:32:28,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:28,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:28,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:28,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:32:28,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 22:32:28,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:32:28,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:32:28,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:32:28,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:28,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614237101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:28,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:28,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-25 22:32:28,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735655605] [2022-11-25 22:32:28,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:28,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:28,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:28,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:28,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:32:28,371 INFO L87 Difference]: Start difference. First operand 1546 states and 6499 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) [2022-11-25 22:32:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:28,507 INFO L93 Difference]: Finished difference Result 1542 states and 6495 transitions. [2022-11-25 22:32:28,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:28,507 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 6 [2022-11-25 22:32:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:28,523 INFO L225 Difference]: With dead ends: 1542 [2022-11-25 22:32:28,523 INFO L226 Difference]: Without dead ends: 1542 [2022-11-25 22:32:28,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:32:28,530 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:28,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:28,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-11-25 22:32:28,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1526. [2022-11-25 22:32:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1338 states have (on average 4.83034379671151) internal successors, (6463), 1525 states have internal predecessors, (6463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6463 transitions. [2022-11-25 22:32:28,592 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6463 transitions. Word has length 6 [2022-11-25 22:32:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:28,592 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 6463 transitions. [2022-11-25 22:32:28,592 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) [2022-11-25 22:32:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6463 transitions. [2022-11-25 22:32:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:32:28,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:28,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:28,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:28,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:28,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:28,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash 761910333, now seen corresponding path program 1 times [2022-11-25 22:32:28,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:28,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492325539] [2022-11-25 22:32:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:28,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:28,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:28,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492325539] [2022-11-25 22:32:28,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492325539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:28,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:28,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:32:28,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547922581] [2022-11-25 22:32:28,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:28,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:28,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:28,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:28,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:28,888 INFO L87 Difference]: Start difference. First operand 1526 states and 6463 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:29,030 INFO L93 Difference]: Finished difference Result 2026 states and 8694 transitions. [2022-11-25 22:32:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:29,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 22:32:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:29,043 INFO L225 Difference]: With dead ends: 2026 [2022-11-25 22:32:29,043 INFO L226 Difference]: Without dead ends: 2026 [2022-11-25 22:32:29,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:29,045 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:29,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-11-25 22:32:29,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1696. [2022-11-25 22:32:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1508 states have (on average 4.995358090185676) internal successors, (7533), 1695 states have internal predecessors, (7533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 7533 transitions. [2022-11-25 22:32:29,110 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 7533 transitions. Word has length 7 [2022-11-25 22:32:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:29,111 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 7533 transitions. [2022-11-25 22:32:29,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 7533 transitions. [2022-11-25 22:32:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:32:29,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:29,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:29,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:32:29,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash 761910350, now seen corresponding path program 1 times [2022-11-25 22:32:29,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:29,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443831109] [2022-11-25 22:32:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:29,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:29,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443831109] [2022-11-25 22:32:29,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443831109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:29,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:29,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:32:29,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303694705] [2022-11-25 22:32:29,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:29,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:29,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:29,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:29,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:29,330 INFO L87 Difference]: Start difference. First operand 1696 states and 7533 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:29,488 INFO L93 Difference]: Finished difference Result 2858 states and 12650 transitions. [2022-11-25 22:32:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:29,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 22:32:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:29,505 INFO L225 Difference]: With dead ends: 2858 [2022-11-25 22:32:29,506 INFO L226 Difference]: Without dead ends: 2858 [2022-11-25 22:32:29,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:29,507 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:29,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2022-11-25 22:32:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2026. [2022-11-25 22:32:29,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2026 states, 1838 states have (on average 5.337867247007617) internal successors, (9811), 2025 states have internal predecessors, (9811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 9811 transitions. [2022-11-25 22:32:29,600 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 9811 transitions. Word has length 7 [2022-11-25 22:32:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:29,601 INFO L495 AbstractCegarLoop]: Abstraction has 2026 states and 9811 transitions. [2022-11-25 22:32:29,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 9811 transitions. [2022-11-25 22:32:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:32:29,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:29,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:29,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:32:29,602 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:29,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2144388759, now seen corresponding path program 1 times [2022-11-25 22:32:29,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:29,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624779919] [2022-11-25 22:32:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:29,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:29,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:29,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624779919] [2022-11-25 22:32:29,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624779919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:29,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:29,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:32:29,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029100948] [2022-11-25 22:32:29,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:29,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:29,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:29,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:29,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:29,767 INFO L87 Difference]: Start difference. First operand 2026 states and 9811 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:29,948 INFO L93 Difference]: Finished difference Result 3427 states and 16517 transitions. [2022-11-25 22:32:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:29,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:32:29,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:29,972 INFO L225 Difference]: With dead ends: 3427 [2022-11-25 22:32:29,972 INFO L226 Difference]: Without dead ends: 3427 [2022-11-25 22:32:29,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:29,973 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:29,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3427 states. [2022-11-25 22:32:30,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3427 to 2827. [2022-11-25 22:32:30,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2639 states have (on average 5.705949223190602) internal successors, (15058), 2826 states have internal predecessors, (15058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 15058 transitions. [2022-11-25 22:32:30,144 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 15058 transitions. Word has length 8 [2022-11-25 22:32:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:30,145 INFO L495 AbstractCegarLoop]: Abstraction has 2827 states and 15058 transitions. [2022-11-25 22:32:30,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 15058 transitions. [2022-11-25 22:32:30,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:32:30,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:30,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:30,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:32:30,146 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:30,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:30,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2144388754, now seen corresponding path program 1 times [2022-11-25 22:32:30,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:30,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712662015] [2022-11-25 22:32:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:30,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:30,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:30,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712662015] [2022-11-25 22:32:30,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712662015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:30,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:30,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:32:30,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540124580] [2022-11-25 22:32:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:30,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:30,300 INFO L87 Difference]: Start difference. First operand 2827 states and 15058 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:30,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:30,504 INFO L93 Difference]: Finished difference Result 4817 states and 25429 transitions. [2022-11-25 22:32:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:32:30,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:32:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:30,601 INFO L225 Difference]: With dead ends: 4817 [2022-11-25 22:32:30,602 INFO L226 Difference]: Without dead ends: 4817 [2022-11-25 22:32:30,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:30,603 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:30,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4817 states. [2022-11-25 22:32:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4817 to 4141. [2022-11-25 22:32:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3953 states have (on average 5.954970908171009) internal successors, (23540), 4140 states have internal predecessors, (23540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 23540 transitions. [2022-11-25 22:32:30,776 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 23540 transitions. Word has length 8 [2022-11-25 22:32:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:30,776 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 23540 transitions. [2022-11-25 22:32:30,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 23540 transitions. [2022-11-25 22:32:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:32:30,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:30,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:30,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:32:30,778 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2144388834, now seen corresponding path program 1 times [2022-11-25 22:32:30,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:30,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866670342] [2022-11-25 22:32:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:31,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:31,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866670342] [2022-11-25 22:32:31,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866670342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:31,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:31,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:32:31,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219600863] [2022-11-25 22:32:31,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:31,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:31,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:31,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:31,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:31,062 INFO L87 Difference]: Start difference. First operand 4141 states and 23540 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:31,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:31,390 INFO L93 Difference]: Finished difference Result 7723 states and 41964 transitions. [2022-11-25 22:32:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:32:31,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:32:31,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:31,462 INFO L225 Difference]: With dead ends: 7723 [2022-11-25 22:32:31,462 INFO L226 Difference]: Without dead ends: 7719 [2022-11-25 22:32:31,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:31,463 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:31,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:32:31,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-11-25 22:32:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 6574. [2022-11-25 22:32:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6574 states, 6386 states have (on average 6.023019104290635) internal successors, (38463), 6573 states have internal predecessors, (38463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:31,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6574 states to 6574 states and 38463 transitions. [2022-11-25 22:32:31,845 INFO L78 Accepts]: Start accepts. Automaton has 6574 states and 38463 transitions. Word has length 8 [2022-11-25 22:32:31,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:31,846 INFO L495 AbstractCegarLoop]: Abstraction has 6574 states and 38463 transitions. [2022-11-25 22:32:31,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 6574 states and 38463 transitions. [2022-11-25 22:32:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:32:31,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:31,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:31,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:32:31,847 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:31,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:31,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1562939916, now seen corresponding path program 1 times [2022-11-25 22:32:31,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:31,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116411191] [2022-11-25 22:32:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:31,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:32,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:32,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116411191] [2022-11-25 22:32:32,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116411191] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:32,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678762032] [2022-11-25 22:32:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:32,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:32,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:32,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:32,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:32:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:32,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:32:32,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:32:32,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:32,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678762032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:32,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:32,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 22:32:32,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43368620] [2022-11-25 22:32:32,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:32,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:32,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:32,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:32,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:32,255 INFO L87 Difference]: Start difference. First operand 6574 states and 38463 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:32,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:32,395 INFO L93 Difference]: Finished difference Result 5242 states and 30653 transitions. [2022-11-25 22:32:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:32,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:32:32,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:32,432 INFO L225 Difference]: With dead ends: 5242 [2022-11-25 22:32:32,432 INFO L226 Difference]: Without dead ends: 5238 [2022-11-25 22:32:32,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:32,433 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:32,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:32,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2022-11-25 22:32:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 3116. [2022-11-25 22:32:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3009 states have (on average 5.570953805250914) internal successors, (16763), 3115 states have internal predecessors, (16763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 16763 transitions. [2022-11-25 22:32:32,663 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 16763 transitions. Word has length 9 [2022-11-25 22:32:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:32,663 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 16763 transitions. [2022-11-25 22:32:32,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 16763 transitions. [2022-11-25 22:32:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:32:32,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:32,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:32,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:32,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:32,870 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:32,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:32,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2034859142, now seen corresponding path program 1 times [2022-11-25 22:32:32,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:32,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13287394] [2022-11-25 22:32:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:32,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:33,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:33,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13287394] [2022-11-25 22:32:33,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13287394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:33,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708775402] [2022-11-25 22:32:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:33,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:33,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:33,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:33,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:32:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:33,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:32:33,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:32:33,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:33,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708775402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:33,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:33,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 22:32:33,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662795458] [2022-11-25 22:32:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:33,227 INFO L87 Difference]: Start difference. First operand 3116 states and 16763 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:33,371 INFO L93 Difference]: Finished difference Result 2478 states and 13343 transitions. [2022-11-25 22:32:33,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:33,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:32:33,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:33,390 INFO L225 Difference]: With dead ends: 2478 [2022-11-25 22:32:33,390 INFO L226 Difference]: Without dead ends: 2474 [2022-11-25 22:32:33,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:33,391 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:33,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-25 22:32:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1472. [2022-11-25 22:32:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1413 states have (on average 5.159943382873319) internal successors, (7291), 1471 states have internal predecessors, (7291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 7291 transitions. [2022-11-25 22:32:33,472 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 7291 transitions. Word has length 9 [2022-11-25 22:32:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:33,473 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 7291 transitions. [2022-11-25 22:32:33,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 7291 transitions. [2022-11-25 22:32:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:32:33,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:33,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:33,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:33,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:33,681 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:33,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:33,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2051380600, now seen corresponding path program 1 times [2022-11-25 22:32:33,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:33,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017678755] [2022-11-25 22:32:33,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:33,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:33,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:33,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:33,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017678755] [2022-11-25 22:32:33,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017678755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:33,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:33,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:32:33,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122970181] [2022-11-25 22:32:33,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:33,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:33,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:33,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:33,784 INFO L87 Difference]: Start difference. First operand 1472 states and 7291 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:33,915 INFO L93 Difference]: Finished difference Result 2080 states and 10122 transitions. [2022-11-25 22:32:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:33,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:32:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:33,928 INFO L225 Difference]: With dead ends: 2080 [2022-11-25 22:32:33,928 INFO L226 Difference]: Without dead ends: 2080 [2022-11-25 22:32:33,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:33,929 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:33,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2022-11-25 22:32:33,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1706. [2022-11-25 22:32:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1647 states have (on average 5.27565270188221) internal successors, (8689), 1705 states have internal predecessors, (8689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:34,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 8689 transitions. [2022-11-25 22:32:34,014 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 8689 transitions. Word has length 9 [2022-11-25 22:32:34,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:34,014 INFO L495 AbstractCegarLoop]: Abstraction has 1706 states and 8689 transitions. [2022-11-25 22:32:34,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:34,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 8689 transitions. [2022-11-25 22:32:34,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:32:34,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:34,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:34,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:32:34,018 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash -607523671, now seen corresponding path program 1 times [2022-11-25 22:32:34,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:34,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629825733] [2022-11-25 22:32:34,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:34,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:34,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:34,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629825733] [2022-11-25 22:32:34,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629825733] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:34,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459917865] [2022-11-25 22:32:34,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:34,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:34,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:34,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:32:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:34,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:32:34,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:32:34,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:34,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459917865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:34,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:34,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 22:32:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181867702] [2022-11-25 22:32:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:34,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:34,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:34,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:34,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:34,458 INFO L87 Difference]: Start difference. First operand 1706 states and 8689 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:34,540 INFO L93 Difference]: Finished difference Result 1376 states and 7051 transitions. [2022-11-25 22:32:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:34,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:32:34,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:34,549 INFO L225 Difference]: With dead ends: 1376 [2022-11-25 22:32:34,549 INFO L226 Difference]: Without dead ends: 1372 [2022-11-25 22:32:34,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:34,551 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:34,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2022-11-25 22:32:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 808. [2022-11-25 22:32:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 777 states have (on average 4.962676962676962) internal successors, (3856), 807 states have internal predecessors, (3856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 3856 transitions. [2022-11-25 22:32:34,595 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 3856 transitions. Word has length 9 [2022-11-25 22:32:34,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:34,596 INFO L495 AbstractCegarLoop]: Abstraction has 808 states and 3856 transitions. [2022-11-25 22:32:34,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 3856 transitions. [2022-11-25 22:32:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:32:34,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:34,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:34,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:34,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 22:32:34,806 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:34,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash -831707491, now seen corresponding path program 1 times [2022-11-25 22:32:34,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:34,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860394432] [2022-11-25 22:32:34,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:34,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:35,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:35,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:35,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860394432] [2022-11-25 22:32:35,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860394432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:35,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:35,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:32:35,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111970603] [2022-11-25 22:32:35,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:35,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:32:35,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:35,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:32:35,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:35,114 INFO L87 Difference]: Start difference. First operand 808 states and 3856 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:35,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:35,294 INFO L93 Difference]: Finished difference Result 1070 states and 4416 transitions. [2022-11-25 22:32:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:35,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 22:32:35,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:35,298 INFO L225 Difference]: With dead ends: 1070 [2022-11-25 22:32:35,298 INFO L226 Difference]: Without dead ends: 1066 [2022-11-25 22:32:35,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:35,299 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:35,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:32:35,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-11-25 22:32:35,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 820. [2022-11-25 22:32:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 789 states have (on average 4.64765525982256) internal successors, (3667), 819 states have internal predecessors, (3667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 3667 transitions. [2022-11-25 22:32:35,324 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 3667 transitions. Word has length 10 [2022-11-25 22:32:35,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:35,325 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 3667 transitions. [2022-11-25 22:32:35,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 3667 transitions. [2022-11-25 22:32:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:32:35,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:35,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:35,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:32:35,326 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:35,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash -13165658, now seen corresponding path program 1 times [2022-11-25 22:32:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:35,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286668544] [2022-11-25 22:32:35,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:35,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:35,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:35,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:35,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286668544] [2022-11-25 22:32:35,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286668544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:35,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:35,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:32:35,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151641643] [2022-11-25 22:32:35,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:35,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:35,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:35,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:35,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:35,382 INFO L87 Difference]: Start difference. First operand 820 states and 3667 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:35,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:35,481 INFO L93 Difference]: Finished difference Result 1214 states and 5399 transitions. [2022-11-25 22:32:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:35,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-11-25 22:32:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:35,486 INFO L225 Difference]: With dead ends: 1214 [2022-11-25 22:32:35,486 INFO L226 Difference]: Without dead ends: 1214 [2022-11-25 22:32:35,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:35,487 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:35,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-11-25 22:32:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1006. [2022-11-25 22:32:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 975 states have (on average 4.798974358974359) internal successors, (4679), 1005 states have internal predecessors, (4679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 4679 transitions. [2022-11-25 22:32:35,519 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 4679 transitions. Word has length 11 [2022-11-25 22:32:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:35,519 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 4679 transitions. [2022-11-25 22:32:35,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 4679 transitions. [2022-11-25 22:32:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:32:35,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:35,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:35,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:32:35,520 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash -13053379, now seen corresponding path program 1 times [2022-11-25 22:32:35,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:35,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030784543] [2022-11-25 22:32:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:35,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:35,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030784543] [2022-11-25 22:32:35,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030784543] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096936207] [2022-11-25 22:32:35,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:35,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:35,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:35,769 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:35,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:32:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:35,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:32:35,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:36,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:36,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:36,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096936207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:36,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:36,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2022-11-25 22:32:36,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821793942] [2022-11-25 22:32:36,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:36,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:36,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:36,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:36,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:36,028 INFO L87 Difference]: Start difference. First operand 1006 states and 4679 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:36,112 INFO L93 Difference]: Finished difference Result 968 states and 4389 transitions. [2022-11-25 22:32:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:36,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-11-25 22:32:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:36,117 INFO L225 Difference]: With dead ends: 968 [2022-11-25 22:32:36,117 INFO L226 Difference]: Without dead ends: 966 [2022-11-25 22:32:36,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:36,118 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:36,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-11-25 22:32:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 908. [2022-11-25 22:32:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 877 states have (on average 4.800456100342076) internal successors, (4210), 907 states have internal predecessors, (4210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:36,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 4210 transitions. [2022-11-25 22:32:36,150 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 4210 transitions. Word has length 11 [2022-11-25 22:32:36,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:36,151 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 4210 transitions. [2022-11-25 22:32:36,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:36,151 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 4210 transitions. [2022-11-25 22:32:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:32:36,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:36,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:36,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:36,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 22:32:36,359 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:36,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:36,359 INFO L85 PathProgramCache]: Analyzing trace with hash -408130809, now seen corresponding path program 1 times [2022-11-25 22:32:36,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:36,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035191545] [2022-11-25 22:32:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:36,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:36,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:36,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035191545] [2022-11-25 22:32:36,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035191545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:36,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:36,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126186748] [2022-11-25 22:32:36,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:36,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:32:36,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:36,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:32:36,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:36,838 INFO L87 Difference]: Start difference. First operand 908 states and 4210 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:37,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:37,125 INFO L93 Difference]: Finished difference Result 1197 states and 5121 transitions. [2022-11-25 22:32:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:32:37,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-25 22:32:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:37,131 INFO L225 Difference]: With dead ends: 1197 [2022-11-25 22:32:37,131 INFO L226 Difference]: Without dead ends: 1183 [2022-11-25 22:32:37,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:32:37,131 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:37,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:32:37,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-11-25 22:32:37,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1031. [2022-11-25 22:32:37,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1000 states have (on average 4.682) internal successors, (4682), 1030 states have internal predecessors, (4682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 4682 transitions. [2022-11-25 22:32:37,161 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 4682 transitions. Word has length 12 [2022-11-25 22:32:37,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:37,163 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 4682 transitions. [2022-11-25 22:32:37,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 4682 transitions. [2022-11-25 22:32:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:32:37,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:37,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:37,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 22:32:37,164 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash 232822176, now seen corresponding path program 1 times [2022-11-25 22:32:37,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:37,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745092828] [2022-11-25 22:32:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:37,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:37,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745092828] [2022-11-25 22:32:37,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745092828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:37,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:37,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:32:37,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458474063] [2022-11-25 22:32:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:37,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:37,344 INFO L87 Difference]: Start difference. First operand 1031 states and 4682 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:37,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:37,494 INFO L93 Difference]: Finished difference Result 1095 states and 4967 transitions. [2022-11-25 22:32:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:37,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-25 22:32:37,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:37,499 INFO L225 Difference]: With dead ends: 1095 [2022-11-25 22:32:37,499 INFO L226 Difference]: Without dead ends: 909 [2022-11-25 22:32:37,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:37,500 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:37,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:37,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-11-25 22:32:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 909. [2022-11-25 22:32:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 878 states have (on average 4.796127562642369) internal successors, (4211), 908 states have internal predecessors, (4211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 4211 transitions. [2022-11-25 22:32:37,526 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 4211 transitions. Word has length 13 [2022-11-25 22:32:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:37,526 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 4211 transitions. [2022-11-25 22:32:37,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 4211 transitions. [2022-11-25 22:32:37,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:32:37,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:37,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:37,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:32:37,527 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:37,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1345906658, now seen corresponding path program 1 times [2022-11-25 22:32:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:37,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254785092] [2022-11-25 22:32:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:37,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:37,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:37,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254785092] [2022-11-25 22:32:37,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254785092] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:37,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631465723] [2022-11-25 22:32:37,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:37,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:37,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:37,927 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:37,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:32:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:38,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:32:38,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:38,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:38,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631465723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:38,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:38,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 8 [2022-11-25 22:32:38,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128595173] [2022-11-25 22:32:38,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:38,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:38,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:38,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:32:38,198 INFO L87 Difference]: Start difference. First operand 909 states and 4211 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:38,314 INFO L93 Difference]: Finished difference Result 903 states and 3879 transitions. [2022-11-25 22:32:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-25 22:32:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:38,319 INFO L225 Difference]: With dead ends: 903 [2022-11-25 22:32:38,319 INFO L226 Difference]: Without dead ends: 889 [2022-11-25 22:32:38,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:32:38,319 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:38,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:38,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-11-25 22:32:38,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 719. [2022-11-25 22:32:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 688 states have (on average 4.7601744186046515) internal successors, (3275), 718 states have internal predecessors, (3275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 3275 transitions. [2022-11-25 22:32:38,342 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 3275 transitions. Word has length 13 [2022-11-25 22:32:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:38,343 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 3275 transitions. [2022-11-25 22:32:38,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 3275 transitions. [2022-11-25 22:32:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 22:32:38,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:38,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:38,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:38,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:38,550 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-11-25 22:32:38,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:38,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1226591195, now seen corresponding path program 1 times [2022-11-25 22:32:38,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:38,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726096926] [2022-11-25 22:32:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:38,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:38,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:32:38,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726096926] [2022-11-25 22:32:38,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726096926] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:32:38,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925623893] [2022-11-25 22:32:38,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:38,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:38,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:38,699 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:38,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:32:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:38,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:32:38,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 22:32:38,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:38,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925623893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:38,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:32:38,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-11-25 22:32:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172162581] [2022-11-25 22:32:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:32:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:38,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:38,914 INFO L87 Difference]: Start difference. First operand 719 states and 3275 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:38,971 INFO L93 Difference]: Finished difference Result 189 states and 759 transitions. [2022-11-25 22:32:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 22:32:38,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:38,972 INFO L225 Difference]: With dead ends: 189 [2022-11-25 22:32:38,972 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:32:38,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:32:38,973 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:38,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:38,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:32:38,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:32:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:32:38,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-25 22:32:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:38,974 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:32:38,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:32:38,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:32:38,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 60 remaining) [2022-11-25 22:32:38,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 60 remaining) [2022-11-25 22:32:38,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 60 remaining) [2022-11-25 22:32:38,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 60 remaining) [2022-11-25 22:32:38,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 60 remaining) [2022-11-25 22:32:38,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 60 remaining) [2022-11-25 22:32:38,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 60 remaining) [2022-11-25 22:32:38,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 60 remaining) [2022-11-25 22:32:38,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 60 remaining) [2022-11-25 22:32:38,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 60 remaining) [2022-11-25 22:32:38,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 60 remaining) [2022-11-25 22:32:38,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 60 remaining) [2022-11-25 22:32:38,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 60 remaining) [2022-11-25 22:32:38,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 60 remaining) [2022-11-25 22:32:38,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 60 remaining) [2022-11-25 22:32:38,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 60 remaining) [2022-11-25 22:32:38,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 60 remaining) [2022-11-25 22:32:38,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 60 remaining) [2022-11-25 22:32:38,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 60 remaining) [2022-11-25 22:32:38,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 60 remaining) [2022-11-25 22:32:38,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 60 remaining) [2022-11-25 22:32:38,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 60 remaining) [2022-11-25 22:32:38,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 60 remaining) [2022-11-25 22:32:38,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 60 remaining) [2022-11-25 22:32:38,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 60 remaining) [2022-11-25 22:32:38,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 60 remaining) [2022-11-25 22:32:38,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 60 remaining) [2022-11-25 22:32:38,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 60 remaining) [2022-11-25 22:32:38,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 60 remaining) [2022-11-25 22:32:38,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 60 remaining) [2022-11-25 22:32:38,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 60 remaining) [2022-11-25 22:32:38,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 60 remaining) [2022-11-25 22:32:38,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 60 remaining) [2022-11-25 22:32:38,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 60 remaining) [2022-11-25 22:32:38,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 60 remaining) [2022-11-25 22:32:38,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 60 remaining) [2022-11-25 22:32:38,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 60 remaining) [2022-11-25 22:32:38,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 60 remaining) [2022-11-25 22:32:38,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 60 remaining) [2022-11-25 22:32:38,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 60 remaining) [2022-11-25 22:32:38,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 60 remaining) [2022-11-25 22:32:38,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 60 remaining) [2022-11-25 22:32:38,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 60 remaining) [2022-11-25 22:32:38,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 60 remaining) [2022-11-25 22:32:38,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 60 remaining) [2022-11-25 22:32:38,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 60 remaining) [2022-11-25 22:32:38,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 60 remaining) [2022-11-25 22:32:38,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 60 remaining) [2022-11-25 22:32:38,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 60 remaining) [2022-11-25 22:32:38,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 60 remaining) [2022-11-25 22:32:38,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 60 remaining) [2022-11-25 22:32:38,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 60 remaining) [2022-11-25 22:32:38,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 60 remaining) [2022-11-25 22:32:38,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 60 remaining) [2022-11-25 22:32:38,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 60 remaining) [2022-11-25 22:32:38,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 60 remaining) [2022-11-25 22:32:38,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 60 remaining) [2022-11-25 22:32:38,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 60 remaining) [2022-11-25 22:32:38,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 60 remaining) [2022-11-25 22:32:38,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 60 remaining) [2022-11-25 22:32:39,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:39,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:39,200 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:39,207 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:32:39,207 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:32:39,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:32:39 BasicIcfg [2022-11-25 22:32:39,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:32:39,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:32:39,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:32:39,212 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:32:39,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:00" (3/4) ... [2022-11-25 22:32:39,215 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:32:39,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 22:32:39,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 22:32:39,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 22:32:39,224 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-25 22:32:39,238 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-11-25 22:32:39,238 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 22:32:39,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 22:32:39,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:32:39,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:32:39,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:32:39,310 INFO L158 Benchmark]: Toolchain (without parser) took 40557.40ms. Allocated memory was 163.6MB in the beginning and 715.1MB in the end (delta: 551.6MB). Free memory was 119.7MB in the beginning and 272.9MB in the end (delta: -153.3MB). Peak memory consumption was 400.4MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,311 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:32:39,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.85ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 102.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.92ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 98.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,312 INFO L158 Benchmark]: Boogie Preprocessor took 62.59ms. Allocated memory is still 163.6MB. Free memory was 98.9MB in the beginning and 96.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,313 INFO L158 Benchmark]: RCFGBuilder took 1777.37ms. Allocated memory is still 163.6MB. Free memory was 96.2MB in the beginning and 64.5MB in the end (delta: 31.6MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,313 INFO L158 Benchmark]: TraceAbstraction took 38229.52ms. Allocated memory was 163.6MB in the beginning and 715.1MB in the end (delta: 551.6MB). Free memory was 63.7MB in the beginning and 278.2MB in the end (delta: -214.5MB). Peak memory consumption was 336.8MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,314 INFO L158 Benchmark]: Witness Printer took 97.84ms. Allocated memory is still 715.1MB. Free memory was 277.1MB in the beginning and 272.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:32:39,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.85ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 102.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.92ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 98.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.59ms. Allocated memory is still 163.6MB. Free memory was 98.9MB in the beginning and 96.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1777.37ms. Allocated memory is still 163.6MB. Free memory was 96.2MB in the beginning and 64.5MB in the end (delta: 31.6MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * TraceAbstraction took 38229.52ms. Allocated memory was 163.6MB in the beginning and 715.1MB in the end (delta: 551.6MB). Free memory was 63.7MB in the beginning and 278.2MB in the end (delta: -214.5MB). Peak memory consumption was 336.8MB. Max. memory is 16.1GB. * Witness Printer took 97.84ms. Allocated memory is still 715.1MB. Free memory was 277.1MB in the beginning and 272.9MB 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: 23.2s, 371 PlacesBefore, 74 PlacesAfterwards, 395 TransitionsBefore, 69 TransitionsAfterwards, 8592 CoEnabledTransitionPairs, 8 FixpointIterations, 255 TrivialSequentialCompositions, 122 ConcurrentSequentialCompositions, 49 TrivialYvCompositions, 13 ConcurrentYvCompositions, 29 ChoiceCompositions, 468 TotalNumberOfCompositions, 12070 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10786, independent: 10738, independent conditional: 0, independent unconditional: 10738, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4670, independent: 4658, independent conditional: 0, independent unconditional: 4658, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4670, independent: 4655, independent conditional: 0, independent unconditional: 4655, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10786, independent: 6080, independent conditional: 0, independent unconditional: 6080, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 4670, unknown conditional: 0, unknown unconditional: 4670] , Statistics on independence cache: Total cache size (in pairs): 250, Positive cache size: 247, Positive conditional cache size: 0, Positive unconditional cache size: 247, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, 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: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 129]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 129]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 136]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 136]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 151]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 435 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 37.9s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 23.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1025 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1025 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1798 IncrementalHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 0 mSDtfsCounter, 1798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7774occurred in iteration=0, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 16100 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 246 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2348 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 29 InterpolantComputations, 19 PerfectInterpolantSequences, 26/45 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 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 22:32:39,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57825b3-ad99-43fd-a153-6bf42945cdfa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE