./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/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_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/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_e833602d-b21f-488e-8ef9-48fd9d63f586/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 39f434d3f7e7749f4257e03557066c1349e963b1d489e771c14fc3ff33c9a6c7 --- 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 [2022-11-26 00:51:33,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:51:33,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:51:33,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:51:33,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:51:33,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:51:33,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:51:33,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:51:33,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:51:33,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:51:33,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:51:33,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:51:33,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:51:33,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:51:33,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:51:33,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:51:33,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:51:33,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:51:33,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:51:33,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:51:33,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:51:33,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:51:33,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:51:33,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:51:33,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:51:33,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:51:33,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:51:33,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:51:33,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:51:33,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:51:33,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:51:33,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:51:33,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:51:33,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:51:33,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:51:33,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:51:33,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:51:33,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:51:33,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:51:33,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:51:33,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:51:33,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:51:33,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:51:33,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:51:33,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:51:33,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:51:33,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:51:33,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:51:33,997 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:51:33,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:51:33,997 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:51:33,998 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:51:33,999 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:51:33,999 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:51:33,999 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:51:34,000 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:51:34,001 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:51:34,001 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:51:34,001 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:51:34,002 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:51:34,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:51:34,003 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:51:34,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:51:34,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:51:34,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:51:34,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:51:34,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:51:34,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:51:34,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:51:34,005 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:51:34,006 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:51:34,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:51:34,006 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:51:34,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:51:34,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:51:34,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:51:34,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:51:34,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:51:34,008 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:51:34,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:51:34,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:51:34,010 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:51:34,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:51:34,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:51:34,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:51:34,011 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_e833602d-b21f-488e-8ef9-48fd9d63f586/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39f434d3f7e7749f4257e03557066c1349e963b1d489e771c14fc3ff33c9a6c7 [2022-11-26 00:51:34,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:51:34,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:51:34,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:51:34,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:51:34,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:51:34,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i [2022-11-26 00:51:37,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:51:37,626 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:51:37,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i [2022-11-26 00:51:37,655 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/data/169139441/8a5db00132c245c382a06ac20c32228f/FLAGa2ea3dcd1 [2022-11-26 00:51:37,674 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/data/169139441/8a5db00132c245c382a06ac20c32228f [2022-11-26 00:51:37,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:51:37,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:51:37,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:51:37,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:51:37,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:51:37,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:51:37" (1/1) ... [2022-11-26 00:51:37,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7469ed60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:37, skipping insertion in model container [2022-11-26 00:51:37,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:51:37" (1/1) ... [2022-11-26 00:51:37,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:51:37,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:51:37,931 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_e833602d-b21f-488e-8ef9-48fd9d63f586/sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i[956,969] [2022-11-26 00:51:38,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:51:38,299 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:51:38,312 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_e833602d-b21f-488e-8ef9-48fd9d63f586/sv-benchmarks/c/pthread-wmm/mix017_pso.opt_tso.opt.i[956,969] [2022-11-26 00:51:38,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:51:38,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:51:38,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:51:38,473 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:51:38,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38 WrapperNode [2022-11-26 00:51:38,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:51:38,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:51:38,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:51:38,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:51:38,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,546 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 166 [2022-11-26 00:51:38,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:51:38,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:51:38,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:51:38,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:51:38,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:51:38,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:51:38,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:51:38,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:51:38,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (1/1) ... [2022-11-26 00:51:38,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:51:38,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:38,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:51:38,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:51:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:51:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:51:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:51:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:51:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:51:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-26 00:51:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-26 00:51:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-26 00:51:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-26 00:51:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-26 00:51:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-26 00:51:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-26 00:51:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-26 00:51:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:51:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:51:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:51:38,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:51:38,731 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:51:38,913 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:51:38,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:51:39,373 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:51:39,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:51:39,532 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:51:39,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:51:39 BoogieIcfgContainer [2022-11-26 00:51:39,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:51:39,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:51:39,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:51:39,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:51:39,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:51:37" (1/3) ... [2022-11-26 00:51:39,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43337fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:51:39, skipping insertion in model container [2022-11-26 00:51:39,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:38" (2/3) ... [2022-11-26 00:51:39,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43337fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:51:39, skipping insertion in model container [2022-11-26 00:51:39,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:51:39" (3/3) ... [2022-11-26 00:51:39,543 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017_pso.opt_tso.opt.i [2022-11-26 00:51:39,552 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:51:39,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:51:39,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-26 00:51:39,563 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:51:39,625 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:51:39,664 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:51:39,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 142 transitions, 304 flow [2022-11-26 00:51:39,692 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 142 transitions, 304 flow [2022-11-26 00:51:39,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 142 transitions, 304 flow [2022-11-26 00:51:39,774 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-11-26 00:51:39,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:51:39,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 2/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-11-26 00:51:39,789 INFO L119 LiptonReduction]: Number of co-enabled transitions 3848 [2022-11-26 00:51:45,880 INFO L134 LiptonReduction]: Checked pairs total: 12710 [2022-11-26 00:51:45,880 INFO L136 LiptonReduction]: Total number of compositions: 120 [2022-11-26 00:51:45,889 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 38 transitions, 96 flow [2022-11-26 00:51:46,248 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7426 states, 7346 states have (on average 4.3490334876123065) internal successors, (31948), 7425 states have internal predecessors, (31948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:46,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:51:46,273 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;@7bdeefb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:51:46,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-26 00:51:46,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 7426 states, 7346 states have (on average 4.3490334876123065) internal successors, (31948), 7425 states have internal predecessors, (31948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:51:46,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:46,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:51:46,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-26 00:51:46,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash 18872168, now seen corresponding path program 1 times [2022-11-26 00:51:46,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:46,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479013860] [2022-11-26 00:51:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:46,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:46,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:46,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479013860] [2022-11-26 00:51:46,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479013860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:46,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:46,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:51:46,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748206494] [2022-11-26 00:51:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:46,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:51:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:46,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:51:46,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:51:46,682 INFO L87 Difference]: Start difference. First operand has 7426 states, 7346 states have (on average 4.3490334876123065) internal successors, (31948), 7425 states have internal predecessors, (31948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:46,893 INFO L93 Difference]: Finished difference Result 4234 states and 15273 transitions. [2022-11-26 00:51:46,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:51:46,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:51:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:46,945 INFO L225 Difference]: With dead ends: 4234 [2022-11-26 00:51:46,945 INFO L226 Difference]: Without dead ends: 4234 [2022-11-26 00:51:46,946 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 [2022-11-26 00:51:46,949 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:46,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 6 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:51:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2022-11-26 00:51:47,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4234. [2022-11-26 00:51:47,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4170 states have (on average 3.662589928057554) internal successors, (15273), 4233 states have internal predecessors, (15273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 15273 transitions. [2022-11-26 00:51:47,297 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 15273 transitions. Word has length 4 [2022-11-26 00:51:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:47,297 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 15273 transitions. [2022-11-26 00:51:47,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 15273 transitions. [2022-11-26 00:51:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:51:47,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:47,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:47,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:51:47,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-26 00:51:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1818352905, now seen corresponding path program 1 times [2022-11-26 00:51:47,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:47,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828198519] [2022-11-26 00:51:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:47,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:47,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:47,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828198519] [2022-11-26 00:51:47,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828198519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:47,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:47,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:51:47,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294854287] [2022-11-26 00:51:47,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:47,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:51:47,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:47,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:51:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:51:47,419 INFO L87 Difference]: Start difference. First operand 4234 states and 15273 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:47,647 INFO L93 Difference]: Finished difference Result 2722 states and 9933 transitions. [2022-11-26 00:51:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:51:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:51:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:47,669 INFO L225 Difference]: With dead ends: 2722 [2022-11-26 00:51:47,670 INFO L226 Difference]: Without dead ends: 2722 [2022-11-26 00:51:47,670 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 [2022-11-26 00:51:47,671 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:47,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 12 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:51:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2022-11-26 00:51:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2722. [2022-11-26 00:51:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2708 states have (on average 3.6680206794682424) internal successors, (9933), 2721 states have internal predecessors, (9933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 9933 transitions. [2022-11-26 00:51:47,788 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 9933 transitions. Word has length 9 [2022-11-26 00:51:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:47,788 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 9933 transitions. [2022-11-26 00:51:47,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 9933 transitions. [2022-11-26 00:51:47,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:51:47,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:47,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:47,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:51:47,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-26 00:51:47,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:47,795 INFO L85 PathProgramCache]: Analyzing trace with hash -534366195, now seen corresponding path program 1 times [2022-11-26 00:51:47,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:47,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304691747] [2022-11-26 00:51:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:47,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:47,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304691747] [2022-11-26 00:51:47,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304691747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:47,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:47,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:51:47,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099363755] [2022-11-26 00:51:47,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:47,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:51:47,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:47,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:51:47,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:51:47,909 INFO L87 Difference]: Start difference. First operand 2722 states and 9933 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:48,099 INFO L93 Difference]: Finished difference Result 1916 states and 6949 transitions. [2022-11-26 00:51:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:51:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:51:48,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:48,115 INFO L225 Difference]: With dead ends: 1916 [2022-11-26 00:51:48,115 INFO L226 Difference]: Without dead ends: 1916 [2022-11-26 00:51:48,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:51:48,117 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 45 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:48,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 9 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:51:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-11-26 00:51:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1916. [2022-11-26 00:51:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1906 states have (on average 3.6458551941238193) internal successors, (6949), 1915 states have internal predecessors, (6949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 6949 transitions. [2022-11-26 00:51:48,202 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 6949 transitions. Word has length 10 [2022-11-26 00:51:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:48,203 INFO L495 AbstractCegarLoop]: Abstraction has 1916 states and 6949 transitions. [2022-11-26 00:51:48,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 6949 transitions. [2022-11-26 00:51:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:51:48,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:48,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:48,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:51:48,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-26 00:51:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash -349077961, now seen corresponding path program 1 times [2022-11-26 00:51:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:48,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855551982] [2022-11-26 00:51:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:48,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:48,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:48,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855551982] [2022-11-26 00:51:48,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855551982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:48,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:48,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:51:48,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024598921] [2022-11-26 00:51:48,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:48,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:51:48,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:48,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:51:48,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:51:48,346 INFO L87 Difference]: Start difference. First operand 1916 states and 6949 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:48,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:48,546 INFO L93 Difference]: Finished difference Result 1718 states and 6409 transitions. [2022-11-26 00:51:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:51:48,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-26 00:51:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:48,560 INFO L225 Difference]: With dead ends: 1718 [2022-11-26 00:51:48,560 INFO L226 Difference]: Without dead ends: 1718 [2022-11-26 00:51:48,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:51:48,561 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 45 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:48,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:51:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-11-26 00:51:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1718. [2022-11-26 00:51:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1714 states have (on average 3.739206534422404) internal successors, (6409), 1717 states have internal predecessors, (6409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 6409 transitions. [2022-11-26 00:51:48,656 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 6409 transitions. Word has length 15 [2022-11-26 00:51:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:48,657 INFO L495 AbstractCegarLoop]: Abstraction has 1718 states and 6409 transitions. [2022-11-26 00:51:48,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 6409 transitions. [2022-11-26 00:51:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:51:48,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:48,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:48,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:51:48,665 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-26 00:51:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1439131542, now seen corresponding path program 1 times [2022-11-26 00:51:48,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:48,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071162014] [2022-11-26 00:51:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:48,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:48,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:48,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:48,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071162014] [2022-11-26 00:51:48,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071162014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:48,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:48,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:51:48,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10976766] [2022-11-26 00:51:48,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:48,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:51:48,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:48,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:51:48,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:51:48,939 INFO L87 Difference]: Start difference. First operand 1718 states and 6409 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:49,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:49,119 INFO L93 Difference]: Finished difference Result 1702 states and 6381 transitions. [2022-11-26 00:51:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:51:49,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-26 00:51:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:49,120 INFO L225 Difference]: With dead ends: 1702 [2022-11-26 00:51:49,120 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:51:49,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:51:49,121 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 66 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:49,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 12 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:51:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:51:49,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:51:49,122 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) [2022-11-26 00:51:49,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:51:49,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-26 00:51:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:49,123 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:51:49,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:51:49,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:51:49,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-26 00:51:49,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-26 00:51:49,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-26 00:51:49,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-26 00:51:49,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-26 00:51:49,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-26 00:51:49,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-26 00:51:49,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-26 00:51:49,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-26 00:51:49,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-26 00:51:49,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-26 00:51:49,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-26 00:51:49,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-26 00:51:49,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-26 00:51:49,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-26 00:51:49,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-26 00:51:49,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-26 00:51:49,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-26 00:51:49,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-26 00:51:49,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-26 00:51:49,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:51:49,142 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-26 00:51:49,147 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:51:49,148 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:51:49,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:51:49 BasicIcfg [2022-11-26 00:51:49,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:51:49,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:51:49,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:51:49,151 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:51:49,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:51:39" (3/4) ... [2022-11-26 00:51:49,154 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:51:49,159 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-26 00:51:49,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-26 00:51:49,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-26 00:51:49,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-26 00:51:49,164 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-26 00:51:49,164 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-26 00:51:49,165 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:51:49,165 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:51:49,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:51:49,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:51:49,211 INFO L158 Benchmark]: Toolchain (without parser) took 11531.85ms. Allocated memory was 186.6MB in the beginning and 306.2MB in the end (delta: 119.5MB). Free memory was 138.9MB in the beginning and 148.6MB in the end (delta: -9.7MB). Peak memory consumption was 110.4MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,211 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:51:49,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.76ms. Allocated memory is still 186.6MB. Free memory was 138.9MB in the beginning and 110.6MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.56ms. Allocated memory is still 186.6MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,212 INFO L158 Benchmark]: Boogie Preprocessor took 73.30ms. Allocated memory is still 186.6MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,213 INFO L158 Benchmark]: RCFGBuilder took 912.01ms. Allocated memory is still 186.6MB. Free memory was 105.4MB in the beginning and 126.3MB in the end (delta: -21.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,213 INFO L158 Benchmark]: TraceAbstraction took 9614.37ms. Allocated memory was 186.6MB in the beginning and 306.2MB in the end (delta: 119.5MB). Free memory was 126.3MB in the beginning and 151.8MB in the end (delta: -25.4MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,215 INFO L158 Benchmark]: Witness Printer took 59.56ms. Allocated memory is still 306.2MB. Free memory was 151.8MB in the beginning and 148.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:51:49,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.76ms. Allocated memory is still 186.6MB. Free memory was 138.9MB in the beginning and 110.6MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.56ms. Allocated memory is still 186.6MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.30ms. Allocated memory is still 186.6MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 912.01ms. Allocated memory is still 186.6MB. Free memory was 105.4MB in the beginning and 126.3MB in the end (delta: -21.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9614.37ms. Allocated memory was 186.6MB in the beginning and 306.2MB in the end (delta: 119.5MB). Free memory was 126.3MB in the beginning and 151.8MB in the end (delta: -25.4MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. * Witness Printer took 59.56ms. Allocated memory is still 306.2MB. Free memory was 151.8MB in the beginning and 148.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 153 PlacesBefore, 50 PlacesAfterwards, 142 TransitionsBefore, 38 TransitionsAfterwards, 3848 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 120 TotalNumberOfCompositions, 12710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5636, independent: 5332, independent conditional: 0, independent unconditional: 5332, dependent: 304, dependent conditional: 0, dependent unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2792, independent: 2721, independent conditional: 0, independent unconditional: 2721, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2792, independent: 2658, independent conditional: 0, independent unconditional: 2658, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 134, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 545, independent: 116, independent conditional: 0, independent unconditional: 116, dependent: 430, dependent conditional: 0, dependent unconditional: 430, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5636, independent: 2611, independent conditional: 0, independent unconditional: 2611, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 2792, unknown conditional: 0, unknown unconditional: 2792] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 297, Positive conditional cache size: 0, Positive unconditional cache size: 297, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, 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: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 851]: 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, 183 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 211 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 386 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 18 mSDtfsCounter, 386 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7426occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:51:49,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e833602d-b21f-488e-8ef9-48fd9d63f586/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE