./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9 --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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- 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-6b4ec56 [2022-11-20 20:06:36,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:06:36,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:06:36,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:06:36,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:06:36,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:06:36,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:06:36,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:06:36,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:06:36,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:06:36,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:06:36,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:06:36,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:06:36,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:06:36,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:06:36,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:06:36,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:06:36,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:06:36,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:06:36,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:06:36,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:06:36,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:06:36,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:06:36,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:06:36,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:06:36,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:06:36,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:06:36,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:06:36,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:06:36,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:06:36,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:06:36,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:06:36,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:06:36,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:06:36,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:06:36,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:06:36,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:06:36,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:06:36,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:06:36,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:06:36,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:06:36,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 20:06:36,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:06:36,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:06:36,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:06:36,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:06:36,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:06:36,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:06:36,237 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:06:36,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:06:36,237 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:06:36,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:06:36,237 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:06:36,237 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:06:36,238 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:06:36,238 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:06:36,238 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:06:36,238 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:06:36,238 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:06:36,238 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:06:36,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:06:36,239 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:06:36,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:06:36,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:06:36,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:06:36,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:06:36,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:06:36,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:06:36,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:06:36,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:06:36,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:06:36,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:06:36,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:06:36,243 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_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2022-11-20 20:06:36,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:06:36,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:06:36,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:06:36,580 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:06:36,580 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:06:36,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-11-20 20:06:39,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:06:40,049 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:06:40,049 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2022-11-20 20:06:40,063 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/data/9298d8c74/8c372ec2428e49efb5c1e966736389bf/FLAG1f28b89b9 [2022-11-20 20:06:40,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/data/9298d8c74/8c372ec2428e49efb5c1e966736389bf [2022-11-20 20:06:40,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:06:40,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:06:40,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:06:40,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:06:40,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:06:40,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730878a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40, skipping insertion in model container [2022-11-20 20:06:40,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:06:40,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:06:40,309 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_39f8735a-c348-43e5-8715-b0d9d9a469ce/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2022-11-20 20:06:40,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:06:40,480 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:06:40,497 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_39f8735a-c348-43e5-8715-b0d9d9a469ce/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2022-11-20 20:06:40,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:06:40,614 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:06:40,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40 WrapperNode [2022-11-20 20:06:40,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:06:40,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:06:40,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:06:40,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:06:40,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,689 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2022-11-20 20:06:40,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:06:40,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:06:40,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:06:40,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:06:40,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:06:40,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:06:40,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:06:40,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:06:40,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (1/1) ... [2022-11-20 20:06:40,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:06:40,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:06:40,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:06:40,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:06:40,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:06:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:06:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 20:06:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:06:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:06:40,839 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 20:06:40,840 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 20:06:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:06:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:06:40,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:06:40,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:06:40,843 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 20:06:40,975 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:06:40,981 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:06:41,375 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:06:41,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:06:41,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:06:41,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:06:41 BoogieIcfgContainer [2022-11-20 20:06:41,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:06:41,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:06:41,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:06:41,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:06:41,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:06:40" (1/3) ... [2022-11-20 20:06:41,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5a7f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:06:41, skipping insertion in model container [2022-11-20 20:06:41,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:06:40" (2/3) ... [2022-11-20 20:06:41,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5a7f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:06:41, skipping insertion in model container [2022-11-20 20:06:41,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:06:41" (3/3) ... [2022-11-20 20:06:41,402 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2022-11-20 20:06:41,416 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 20:06:41,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:06:41,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 20:06:41,427 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 20:06:41,508 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 20:06:41,543 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:06:41,558 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 155 transitions, 318 flow [2022-11-20 20:06:41,561 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 155 transitions, 318 flow [2022-11-20 20:06:41,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 155 transitions, 318 flow [2022-11-20 20:06:41,631 INFO L130 PetriNetUnfolder]: 4/154 cut-off events. [2022-11-20 20:06:41,632 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 20:06:41,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 154 events. 4/154 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 138 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2022-11-20 20:06:41,641 INFO L119 LiptonReduction]: Number of co-enabled transitions 5586 [2022-11-20 20:06:47,589 INFO L134 LiptonReduction]: Checked pairs total: 22646 [2022-11-20 20:06:47,589 INFO L136 LiptonReduction]: Total number of compositions: 148 [2022-11-20 20:06:47,602 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions, 104 flow [2022-11-20 20:06:47,671 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 359 states, 351 states have (on average 2.111111111111111) internal successors, (741), 358 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:47,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:06:47,711 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;@3d7d4a2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:06:47,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-20 20:06:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 359 states, 351 states have (on average 2.111111111111111) internal successors, (741), 358 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 20:06:47,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:47,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 20:06:47,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-20 20:06:47,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash 16943927, now seen corresponding path program 1 times [2022-11-20 20:06:47,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:06:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109218077] [2022-11-20 20:06:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:47,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:06:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:06:48,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:06:48,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109218077] [2022-11-20 20:06:48,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109218077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:48,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:48,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 20:06:48,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180879241] [2022-11-20 20:06:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:48,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:06:48,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:06:48,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:06:48,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:48,180 INFO L87 Difference]: Start difference. First operand has 359 states, 351 states have (on average 2.111111111111111) internal successors, (741), 358 states have internal predecessors, (741), 0 states have call successors, (0), 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) [2022-11-20 20:06:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:48,328 INFO L93 Difference]: Finished difference Result 325 states and 612 transitions. [2022-11-20 20:06:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:06:48,332 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 [2022-11-20 20:06:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:48,353 INFO L225 Difference]: With dead ends: 325 [2022-11-20 20:06:48,354 INFO L226 Difference]: Without dead ends: 325 [2022-11-20 20:06:48,355 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 [2022-11-20 20:06:48,360 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:48,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:06:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-20 20:06:48,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-11-20 20:06:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 319 states have (on average 1.9184952978056427) internal successors, (612), 324 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 612 transitions. [2022-11-20 20:06:48,478 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 612 transitions. Word has length 4 [2022-11-20 20:06:48,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:48,479 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 612 transitions. [2022-11-20 20:06:48,480 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) [2022-11-20 20:06:48,480 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 612 transitions. [2022-11-20 20:06:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:06:48,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:48,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:06:48,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:06:48,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-20 20:06:48,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:48,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2030207946, now seen corresponding path program 1 times [2022-11-20 20:06:48,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:06:48,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175092387] [2022-11-20 20:06:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:06:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:06:48,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:06:48,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175092387] [2022-11-20 20:06:48,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175092387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:48,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:48,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:48,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62808956] [2022-11-20 20:06:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:48,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:06:48,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:06:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:06:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:06:48,620 INFO L87 Difference]: Start difference. First operand 325 states and 612 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:48,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:48,767 INFO L93 Difference]: Finished difference Result 308 states and 579 transitions. [2022-11-20 20:06:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:06:48,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 20:06:48,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:48,770 INFO L225 Difference]: With dead ends: 308 [2022-11-20 20:06:48,770 INFO L226 Difference]: Without dead ends: 308 [2022-11-20 20:06:48,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:06:48,771 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 53 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:48,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 14 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:06:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-11-20 20:06:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-11-20 20:06:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 303 states have (on average 1.9108910891089108) internal successors, (579), 307 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 579 transitions. [2022-11-20 20:06:48,783 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 579 transitions. Word has length 7 [2022-11-20 20:06:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:48,783 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 579 transitions. [2022-11-20 20:06:48,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 579 transitions. [2022-11-20 20:06:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:06:48,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:48,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:06:48,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:06:48,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-20 20:06:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:48,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2030207930, now seen corresponding path program 1 times [2022-11-20 20:06:48,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:06:48,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901880511] [2022-11-20 20:06:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:48,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:06:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:06:48,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:06:48,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901880511] [2022-11-20 20:06:48,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901880511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:48,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:48,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:48,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473278265] [2022-11-20 20:06:48,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:48,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:06:48,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:06:48,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:06:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:06:48,878 INFO L87 Difference]: Start difference. First operand 308 states and 579 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:49,038 INFO L93 Difference]: Finished difference Result 291 states and 546 transitions. [2022-11-20 20:06:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:06:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 20:06:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:49,040 INFO L225 Difference]: With dead ends: 291 [2022-11-20 20:06:49,040 INFO L226 Difference]: Without dead ends: 291 [2022-11-20 20:06:49,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:06:49,044 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 50 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:49,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 17 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:06:49,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-11-20 20:06:49,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2022-11-20 20:06:49,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 287 states have (on average 1.9024390243902438) internal successors, (546), 290 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 546 transitions. [2022-11-20 20:06:49,056 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 546 transitions. Word has length 7 [2022-11-20 20:06:49,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:49,056 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 546 transitions. [2022-11-20 20:06:49,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,057 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 546 transitions. [2022-11-20 20:06:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 20:06:49,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:49,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:06:49,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:06:49,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-20 20:06:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1910530191, now seen corresponding path program 1 times [2022-11-20 20:06:49,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:06:49,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668111604] [2022-11-20 20:06:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:06:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:06:49,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:06:49,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668111604] [2022-11-20 20:06:49,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668111604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:49,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:49,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 20:06:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93200498] [2022-11-20 20:06:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:49,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:06:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:06:49,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:06:49,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:49,124 INFO L87 Difference]: Start difference. First operand 291 states and 546 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:49,183 INFO L93 Difference]: Finished difference Result 285 states and 511 transitions. [2022-11-20 20:06:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:06:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 20:06:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:49,185 INFO L225 Difference]: With dead ends: 285 [2022-11-20 20:06:49,185 INFO L226 Difference]: Without dead ends: 271 [2022-11-20 20:06:49,185 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 [2022-11-20 20:06:49,186 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:49,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:06:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-20 20:06:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 257. [2022-11-20 20:06:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 255 states have (on average 1.8745098039215686) internal successors, (478), 256 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 478 transitions. [2022-11-20 20:06:49,194 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 478 transitions. Word has length 12 [2022-11-20 20:06:49,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:49,194 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 478 transitions. [2022-11-20 20:06:49,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 478 transitions. [2022-11-20 20:06:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 20:06:49,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:49,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:06:49,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:06:49,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-20 20:06:49,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash -301284983, now seen corresponding path program 1 times [2022-11-20 20:06:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:06:49,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422746968] [2022-11-20 20:06:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:49,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:06:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:06:49,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:06:49,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422746968] [2022-11-20 20:06:49,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422746968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:49,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:49,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661690357] [2022-11-20 20:06:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:49,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:06:49,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:06:49,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:06:49,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:06:49,296 INFO L87 Difference]: Start difference. First operand 257 states and 478 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) [2022-11-20 20:06:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:49,395 INFO L93 Difference]: Finished difference Result 247 states and 451 transitions. [2022-11-20 20:06:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:06:49,396 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 [2022-11-20 20:06:49,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:49,397 INFO L225 Difference]: With dead ends: 247 [2022-11-20 20:06:49,397 INFO L226 Difference]: Without dead ends: 247 [2022-11-20 20:06:49,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:06:49,398 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:49,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 10 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:06:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-20 20:06:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 240. [2022-11-20 20:06:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.8619246861924685) internal successors, (445), 239 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:06:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 445 transitions. [2022-11-20 20:06:49,405 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 445 transitions. Word has length 15 [2022-11-20 20:06:49,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:49,405 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 445 transitions. [2022-11-20 20:06:49,406 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) [2022-11-20 20:06:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 445 transitions. [2022-11-20 20:06:49,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 20:06:49,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:49,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:06:49,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:06:49,407 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-20 20:06:49,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:49,408 INFO L85 PathProgramCache]: Analyzing trace with hash -301284969, now seen corresponding path program 1 times [2022-11-20 20:06:49,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:06:49,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845913301] [2022-11-20 20:06:49,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:49,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:06:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:06:49,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:06:49,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845913301] [2022-11-20 20:06:49,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845913301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:49,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:49,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:49,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367521075] [2022-11-20 20:06:49,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:49,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:06:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:06:49,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:06:49,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:06:49,533 INFO L87 Difference]: Start difference. First operand 240 states and 445 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) [2022-11-20 20:06:49,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:49,659 INFO L93 Difference]: Finished difference Result 223 states and 412 transitions. [2022-11-20 20:06:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:06:49,659 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 [2022-11-20 20:06:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:49,659 INFO L225 Difference]: With dead ends: 223 [2022-11-20 20:06:49,660 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:06:49,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:06:49,663 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 79 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:49,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 17 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:06:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:06:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:06:49,664 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) [2022-11-20 20:06:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:06:49,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-11-20 20:06:49,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:49,665 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:06:49,665 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) [2022-11-20 20:06:49,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:06:49,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:06:49,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-20 20:06:49,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-11-20 20:06:49,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-11-20 20:06:49,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-11-20 20:06:49,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-11-20 20:06:49,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-11-20 20:06:49,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-11-20 20:06:49,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-11-20 20:06:49,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-11-20 20:06:49,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-11-20 20:06:49,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-11-20 20:06:49,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-11-20 20:06:49,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-11-20 20:06:49,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-11-20 20:06:49,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-11-20 20:06:49,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-11-20 20:06:49,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-11-20 20:06:49,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 20:06:49,675 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 20:06:49,680 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 20:06:49,680 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:06:49,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:06:49 BasicIcfg [2022-11-20 20:06:49,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:06:49,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:06:49,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:06:49,683 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:06:49,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:06:41" (3/4) ... [2022-11-20 20:06:49,686 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:06:49,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 20:06:49,699 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 20:06:49,699 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 20:06:49,699 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 20:06:49,699 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:06:49,740 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:06:49,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:06:49,741 INFO L158 Benchmark]: Toolchain (without parser) took 9647.20ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 106.3MB in the beginning and 150.7MB in the end (delta: -44.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,742 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory was 51.6MB in the beginning and 51.4MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:06:49,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.92ms. Allocated memory is still 148.9MB. Free memory was 106.0MB in the beginning and 86.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.93ms. Allocated memory is still 148.9MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,743 INFO L158 Benchmark]: Boogie Preprocessor took 45.40ms. Allocated memory is still 148.9MB. Free memory was 84.3MB in the beginning and 82.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,743 INFO L158 Benchmark]: RCFGBuilder took 651.43ms. Allocated memory is still 148.9MB. Free memory was 82.9MB in the beginning and 106.2MB in the end (delta: -23.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,744 INFO L158 Benchmark]: TraceAbstraction took 8292.84ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 105.4MB in the beginning and 153.8MB in the end (delta: -48.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,744 INFO L158 Benchmark]: Witness Printer took 57.23ms. Allocated memory is still 203.4MB. Free memory was 153.8MB in the beginning and 150.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:06:49,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory was 51.6MB in the beginning and 51.4MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.92ms. Allocated memory is still 148.9MB. Free memory was 106.0MB in the beginning and 86.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.93ms. Allocated memory is still 148.9MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.40ms. Allocated memory is still 148.9MB. Free memory was 84.3MB in the beginning and 82.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.43ms. Allocated memory is still 148.9MB. Free memory was 82.9MB in the beginning and 106.2MB in the end (delta: -23.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8292.84ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 105.4MB in the beginning and 153.8MB in the end (delta: -48.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 57.23ms. Allocated memory is still 203.4MB. Free memory was 153.8MB in the beginning and 150.7MB 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: 6.0s, 155 PlacesBefore, 49 PlacesAfterwards, 155 TransitionsBefore, 48 TransitionsAfterwards, 5586 CoEnabledTransitionPairs, 11 FixpointIterations, 44 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 148 TotalNumberOfCompositions, 22646 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8227, independent: 7437, independent conditional: 0, independent unconditional: 7437, dependent: 790, dependent conditional: 0, dependent unconditional: 790, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4046, independent: 3917, independent conditional: 0, independent unconditional: 3917, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4046, independent: 3514, independent conditional: 0, independent unconditional: 3514, dependent: 532, dependent conditional: 0, dependent unconditional: 532, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 532, independent: 403, independent conditional: 0, independent unconditional: 403, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 773, independent: 423, independent conditional: 0, independent unconditional: 423, dependent: 350, dependent conditional: 0, dependent unconditional: 350, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8227, independent: 3520, independent conditional: 0, independent unconditional: 3520, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 4046, unknown conditional: 0, unknown unconditional: 4046] , Statistics on independence cache: Total cache size (in pairs): 446, Positive cache size: 385, Positive conditional cache size: 0, Positive unconditional cache size: 385, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, 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: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: 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 3 procedures, 203 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 325 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 325 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 644 IncrementalHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 30 mSDtfsCounter, 644 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=359occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-11-20 20:06:49,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f8735a-c348-43e5-8715-b0d9d9a469ce/bin/utaipan-6cKwYrpEi9/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