./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI --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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- 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-5e519f3 [2022-11-03 02:28:27,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:28:27,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:28:27,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:28:27,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:28:27,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:28:27,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:28:27,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:28:27,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:28:27,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:28:27,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:28:27,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:28:27,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:28:27,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:28:27,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:28:27,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:28:27,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:28:27,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:28:27,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:28:27,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:28:27,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:28:27,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:28:27,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:28:27,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:28:27,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:28:27,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:28:27,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:28:27,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:28:27,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:28:27,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:28:27,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:28:27,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:28:27,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:28:27,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:28:27,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:28:27,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:28:27,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:28:27,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:28:27,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:28:27,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:28:27,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:28:27,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:28:27,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:28:27,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:28:27,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:28:27,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:28:27,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:28:27,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:28:27,212 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:28:27,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:28:27,213 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:28:27,213 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:28:27,214 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:28:27,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:28:27,214 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:28:27,214 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:28:27,215 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:28:27,215 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:28:27,215 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:28:27,216 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:28:27,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:28:27,217 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:28:27,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:28:27,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:28:27,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:28:27,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:28:27,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:28:27,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:28:27,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:28:27,219 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:28:27,219 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:28:27,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:28:27,220 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:28:27,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:28:27,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:28:27,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:28:27,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:28:27,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:28:27,222 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:28:27,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:28:27,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:28:27,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:28:27,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:28:27,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:28:27,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:28:27,224 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_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-11-03 02:28:27,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:28:27,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:28:27,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:28:27,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:28:27,576 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:28:27,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-03 02:28:27,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/data/cb159f5ee/16d4300e89054602b9dbf0a2bdd959c6/FLAG324c6d30d [2022-11-03 02:28:28,233 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:28:28,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-03 02:28:28,250 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/data/cb159f5ee/16d4300e89054602b9dbf0a2bdd959c6/FLAG324c6d30d [2022-11-03 02:28:28,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/data/cb159f5ee/16d4300e89054602b9dbf0a2bdd959c6 [2022-11-03 02:28:28,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:28:28,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:28:28,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:28:28,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:28:28,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:28:28,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:28,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30059065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28, skipping insertion in model container [2022-11-03 02:28:28,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:28,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:28:28,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:28:28,881 WARN L230 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_da3f5dad-54d1-4735-b1cd-80683986aa27/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-03 02:28:28,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:28:28,902 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:28:28,950 WARN L230 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_da3f5dad-54d1-4735-b1cd-80683986aa27/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-03 02:28:28,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:28:28,975 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:28:28,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28 WrapperNode [2022-11-03 02:28:28,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:28:28,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:28:28,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:28:28,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:28:28,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,051 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 258 [2022-11-03 02:28:29,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:28:29,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:28:29,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:28:29,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:28:29,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:28:29,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:28:29,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:28:29,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:28:29,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (1/1) ... [2022-11-03 02:28:29,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:28:29,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:28:29,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:28:29,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:28:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:28:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 02:28:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 02:28:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 02:28:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 02:28:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 02:28:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 02:28:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-03 02:28:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-03 02:28:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:28:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-03 02:28:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-03 02:28:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:28:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:28:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:28:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:28:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:28:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:28:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:28:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:28:29,187 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:28:29,363 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:28:29,365 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:28:29,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:28:29,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:28:29,939 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:28:29,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:28:29 BoogieIcfgContainer [2022-11-03 02:28:29,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:28:29,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:28:29,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:28:29,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:28:29,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:28:28" (1/3) ... [2022-11-03 02:28:29,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ff45da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:28:29, skipping insertion in model container [2022-11-03 02:28:29,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:28:28" (2/3) ... [2022-11-03 02:28:29,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ff45da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:28:29, skipping insertion in model container [2022-11-03 02:28:29,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:28:29" (3/3) ... [2022-11-03 02:28:29,957 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-11-03 02:28:29,967 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:28:29,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:28:29,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-03 02:28:29,978 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:28:30,059 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-03 02:28:30,124 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:28:30,138 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 184 transitions, 408 flow [2022-11-03 02:28:30,141 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 184 transitions, 408 flow [2022-11-03 02:28:30,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 184 transitions, 408 flow [2022-11-03 02:28:30,242 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-11-03 02:28:30,244 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-03 02:28:30,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 179 events. 2/179 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-11-03 02:28:30,253 INFO L118 LiptonReduction]: Number of co-enabled transitions 4234 [2022-11-03 02:28:41,257 INFO L133 LiptonReduction]: Checked pairs total: 18033 [2022-11-03 02:28:41,258 INFO L135 LiptonReduction]: Total number of compositions: 148 [2022-11-03 02:28:41,267 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 62 transitions, 164 flow [2022-11-03 02:28:45,848 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93610 states, 90486 states have (on average 4.946544216784917) internal successors, (447593), 93609 states have internal predecessors, (447593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:28:45,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:28:45,895 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;@10c0f339, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:28:45,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2022-11-03 02:28:46,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 93610 states, 90486 states have (on average 4.946544216784917) internal successors, (447593), 93609 states have internal predecessors, (447593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:28:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 02:28:46,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:46,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 02:28:46,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:28:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:46,089 INFO L85 PathProgramCache]: Analyzing trace with hash 804278, now seen corresponding path program 1 times [2022-11-03 02:28:46,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:46,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588996651] [2022-11-03 02:28:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:46,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:28:46,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:46,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588996651] [2022-11-03 02:28:46,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588996651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:46,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:46,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:28:46,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364850059] [2022-11-03 02:28:46,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:46,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:46,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:46,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:46,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:47,076 INFO L87 Difference]: Start difference. First operand has 93610 states, 90486 states have (on average 4.946544216784917) internal successors, (447593), 93609 states have internal predecessors, (447593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:28:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:49,401 INFO L93 Difference]: Finished difference Result 92894 states and 443867 transitions. [2022-11-03 02:28:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:49,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-03 02:28:49,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:50,988 INFO L225 Difference]: With dead ends: 92894 [2022-11-03 02:28:50,990 INFO L226 Difference]: Without dead ends: 92894 [2022-11-03 02:28:50,991 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 [2022-11-03 02:28:50,994 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:50,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:28:51,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92894 states. [2022-11-03 02:28:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92894 to 92894. [2022-11-03 02:28:55,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92894 states, 89802 states have (on average 4.942729560588851) internal successors, (443867), 92893 states have internal predecessors, (443867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:28:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92894 states to 92894 states and 443867 transitions. [2022-11-03 02:28:56,727 INFO L78 Accepts]: Start accepts. Automaton has 92894 states and 443867 transitions. Word has length 3 [2022-11-03 02:28:56,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:56,728 INFO L495 AbstractCegarLoop]: Abstraction has 92894 states and 443867 transitions. [2022-11-03 02:28:56,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:28:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 92894 states and 443867 transitions. [2022-11-03 02:28:56,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:28:56,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:56,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:28:56,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:28:56,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:28:56,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash 772935534, now seen corresponding path program 1 times [2022-11-03 02:28:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:56,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052074657] [2022-11-03 02:28:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:56,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:28:56,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:56,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052074657] [2022-11-03 02:28:56,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052074657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:56,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:56,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:28:56,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582990267] [2022-11-03 02:28:56,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:56,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:56,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:56,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:56,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:56,928 INFO L87 Difference]: Start difference. First operand 92894 states and 443867 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:28:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:58,445 INFO L93 Difference]: Finished difference Result 57450 states and 251789 transitions. [2022-11-03 02:28:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:58,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-03 02:28:58,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:58,914 INFO L225 Difference]: With dead ends: 57450 [2022-11-03 02:28:58,915 INFO L226 Difference]: Without dead ends: 57448 [2022-11-03 02:28:58,915 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 [2022-11-03 02:28:58,916 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 28 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:58,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:28:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57448 states. [2022-11-03 02:29:01,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57448 to 57448. [2022-11-03 02:29:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57448 states, 55138 states have (on average 4.5663244949036965) internal successors, (251778), 57447 states have internal predecessors, (251778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57448 states to 57448 states and 251778 transitions. [2022-11-03 02:29:01,997 INFO L78 Accepts]: Start accepts. Automaton has 57448 states and 251778 transitions. Word has length 5 [2022-11-03 02:29:01,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:01,998 INFO L495 AbstractCegarLoop]: Abstraction has 57448 states and 251778 transitions. [2022-11-03 02:29:01,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:01,998 INFO L276 IsEmpty]: Start isEmpty. Operand 57448 states and 251778 transitions. [2022-11-03 02:29:01,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:29:01,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:01,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:29:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:29:02,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1803279217, now seen corresponding path program 1 times [2022-11-03 02:29:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:02,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660068379] [2022-11-03 02:29:02,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:02,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:02,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:02,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660068379] [2022-11-03 02:29:02,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660068379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:02,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:02,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:29:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824121892] [2022-11-03 02:29:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:02,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:29:02,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:29:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:29:02,133 INFO L87 Difference]: Start difference. First operand 57448 states and 251778 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:03,746 INFO L93 Difference]: Finished difference Result 77328 states and 311547 transitions. [2022-11-03 02:29:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:29:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:29:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:04,328 INFO L225 Difference]: With dead ends: 77328 [2022-11-03 02:29:04,331 INFO L226 Difference]: Without dead ends: 77328 [2022-11-03 02:29:04,333 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 [2022-11-03 02:29:04,336 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 53 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:04,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:04,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77328 states. [2022-11-03 02:29:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77328 to 63868. [2022-11-03 02:29:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63868 states, 61708 states have (on average 4.467848577169897) internal successors, (275702), 63867 states have internal predecessors, (275702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63868 states to 63868 states and 275702 transitions. [2022-11-03 02:29:08,209 INFO L78 Accepts]: Start accepts. Automaton has 63868 states and 275702 transitions. Word has length 6 [2022-11-03 02:29:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:08,210 INFO L495 AbstractCegarLoop]: Abstraction has 63868 states and 275702 transitions. [2022-11-03 02:29:08,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 63868 states and 275702 transitions. [2022-11-03 02:29:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:29:08,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:08,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:29:08,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:29:08,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:08,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:08,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1803279216, now seen corresponding path program 1 times [2022-11-03 02:29:08,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:08,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858076722] [2022-11-03 02:29:08,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:08,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:08,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858076722] [2022-11-03 02:29:08,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858076722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:08,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:08,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:29:08,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226726590] [2022-11-03 02:29:08,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:08,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:08,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:08,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:08,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:08,265 INFO L87 Difference]: Start difference. First operand 63868 states and 275702 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:08,621 INFO L93 Difference]: Finished difference Result 31166 states and 132575 transitions. [2022-11-03 02:29:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:08,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:29:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:09,521 INFO L225 Difference]: With dead ends: 31166 [2022-11-03 02:29:09,521 INFO L226 Difference]: Without dead ends: 31166 [2022-11-03 02:29:09,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:09,535 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:09,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:29:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31166 states. [2022-11-03 02:29:10,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31166 to 31166. [2022-11-03 02:29:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31166 states, 30366 states have (on average 4.365902654284397) internal successors, (132575), 31165 states have internal predecessors, (132575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31166 states to 31166 states and 132575 transitions. [2022-11-03 02:29:10,736 INFO L78 Accepts]: Start accepts. Automaton has 31166 states and 132575 transitions. Word has length 6 [2022-11-03 02:29:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:10,736 INFO L495 AbstractCegarLoop]: Abstraction has 31166 states and 132575 transitions. [2022-11-03 02:29:10,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 31166 states and 132575 transitions. [2022-11-03 02:29:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:29:10,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:10,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:10,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:29:10,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:10,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:10,740 INFO L85 PathProgramCache]: Analyzing trace with hash 122736173, now seen corresponding path program 1 times [2022-11-03 02:29:10,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:10,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166712287] [2022-11-03 02:29:10,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:10,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:10,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:10,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166712287] [2022-11-03 02:29:10,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166712287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:10,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:10,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714573908] [2022-11-03 02:29:10,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:10,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:29:10,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:10,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:29:10,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:10,894 INFO L87 Difference]: Start difference. First operand 31166 states and 132575 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-03 02:29:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:12,213 INFO L93 Difference]: Finished difference Result 28272 states and 119169 transitions. [2022-11-03 02:29:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:29:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2022-11-03 02:29:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:12,347 INFO L225 Difference]: With dead ends: 28272 [2022-11-03 02:29:12,347 INFO L226 Difference]: Without dead ends: 28272 [2022-11-03 02:29:12,347 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 [2022-11-03 02:29:12,348 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 101 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:12,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 4 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:12,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28272 states. [2022-11-03 02:29:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28272 to 28272. [2022-11-03 02:29:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28272 states, 27532 states have (on average 4.328381519686183) internal successors, (119169), 28271 states have internal predecessors, (119169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28272 states to 28272 states and 119169 transitions. [2022-11-03 02:29:13,220 INFO L78 Accepts]: Start accepts. Automaton has 28272 states and 119169 transitions. Word has length 9 [2022-11-03 02:29:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:13,220 INFO L495 AbstractCegarLoop]: Abstraction has 28272 states and 119169 transitions. [2022-11-03 02:29:13,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-03 02:29:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 28272 states and 119169 transitions. [2022-11-03 02:29:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:29:13,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:13,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:13,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:29:13,223 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:13,224 INFO L85 PathProgramCache]: Analyzing trace with hash -34010712, now seen corresponding path program 1 times [2022-11-03 02:29:13,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:13,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614530154] [2022-11-03 02:29:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:13,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:13,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:13,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614530154] [2022-11-03 02:29:13,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614530154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:13,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:13,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:29:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812869061] [2022-11-03 02:29:13,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:13,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:13,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:13,295 INFO L87 Difference]: Start difference. First operand 28272 states and 119169 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:14,025 INFO L93 Difference]: Finished difference Result 15552 states and 65259 transitions. [2022-11-03 02:29:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:14,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:29:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:14,104 INFO L225 Difference]: With dead ends: 15552 [2022-11-03 02:29:14,104 INFO L226 Difference]: Without dead ends: 15552 [2022-11-03 02:29:14,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:14,105 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:14,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:29:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15552 states. [2022-11-03 02:29:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15552 to 15552. [2022-11-03 02:29:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15552 states, 15362 states have (on average 4.248079677125374) internal successors, (65259), 15551 states have internal predecessors, (65259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:14,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15552 states to 15552 states and 65259 transitions. [2022-11-03 02:29:14,507 INFO L78 Accepts]: Start accepts. Automaton has 15552 states and 65259 transitions. Word has length 9 [2022-11-03 02:29:14,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:14,507 INFO L495 AbstractCegarLoop]: Abstraction has 15552 states and 65259 transitions. [2022-11-03 02:29:14,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 15552 states and 65259 transitions. [2022-11-03 02:29:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:29:14,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:14,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:14,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:29:14,510 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:14,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:14,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1054334098, now seen corresponding path program 1 times [2022-11-03 02:29:14,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:14,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496726081] [2022-11-03 02:29:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:14,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:14,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:14,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496726081] [2022-11-03 02:29:14,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496726081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:14,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:14,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:14,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793207288] [2022-11-03 02:29:14,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:14,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:29:14,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:14,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:29:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:14,720 INFO L87 Difference]: Start difference. First operand 15552 states and 65259 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:15,003 INFO L93 Difference]: Finished difference Result 10452 states and 42282 transitions. [2022-11-03 02:29:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:29:15,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:29:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:15,044 INFO L225 Difference]: With dead ends: 10452 [2022-11-03 02:29:15,044 INFO L226 Difference]: Without dead ends: 10428 [2022-11-03 02:29:15,044 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 [2022-11-03 02:29:15,045 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 84 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:15,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 3 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:15,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10428 states. [2022-11-03 02:29:15,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10428 to 10428. [2022-11-03 02:29:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10428 states, 10243 states have (on average 4.1151029971687985) internal successors, (42151), 10427 states have internal predecessors, (42151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10428 states to 10428 states and 42151 transitions. [2022-11-03 02:29:15,328 INFO L78 Accepts]: Start accepts. Automaton has 10428 states and 42151 transitions. Word has length 10 [2022-11-03 02:29:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:15,329 INFO L495 AbstractCegarLoop]: Abstraction has 10428 states and 42151 transitions. [2022-11-03 02:29:15,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 10428 states and 42151 transitions. [2022-11-03 02:29:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:29:15,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:15,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:15,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:29:15,333 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:15,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:15,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1422537289, now seen corresponding path program 1 times [2022-11-03 02:29:15,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:15,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140590209] [2022-11-03 02:29:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:15,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:15,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:15,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140590209] [2022-11-03 02:29:15,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140590209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:15,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:15,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:29:15,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921927148] [2022-11-03 02:29:15,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:15,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:29:15,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:15,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:29:15,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:29:15,472 INFO L87 Difference]: Start difference. First operand 10428 states and 42151 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:15,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:15,880 INFO L93 Difference]: Finished difference Result 7536 states and 29515 transitions. [2022-11-03 02:29:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:29:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:29:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:15,917 INFO L225 Difference]: With dead ends: 7536 [2022-11-03 02:29:15,918 INFO L226 Difference]: Without dead ends: 7536 [2022-11-03 02:29:15,918 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 [2022-11-03 02:29:15,921 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 114 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:15,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:29:15,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7536 states. [2022-11-03 02:29:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7536 to 7536. [2022-11-03 02:29:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 7431 states have (on average 3.971874579464406) internal successors, (29515), 7535 states have internal predecessors, (29515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 29515 transitions. [2022-11-03 02:29:16,142 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 29515 transitions. Word has length 12 [2022-11-03 02:29:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:16,142 INFO L495 AbstractCegarLoop]: Abstraction has 7536 states and 29515 transitions. [2022-11-03 02:29:16,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 29515 transitions. [2022-11-03 02:29:16,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:29:16,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:16,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:16,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:29:16,146 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:16,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:16,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1213131280, now seen corresponding path program 1 times [2022-11-03 02:29:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:16,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179332946] [2022-11-03 02:29:16,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:16,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:16,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:16,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:16,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179332946] [2022-11-03 02:29:16,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179332946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:16,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:16,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:16,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198240646] [2022-11-03 02:29:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:16,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:29:16,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:16,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:29:16,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:16,266 INFO L87 Difference]: Start difference. First operand 7536 states and 29515 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:16,507 INFO L93 Difference]: Finished difference Result 5772 states and 23135 transitions. [2022-11-03 02:29:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:29:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:29:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:16,525 INFO L225 Difference]: With dead ends: 5772 [2022-11-03 02:29:16,525 INFO L226 Difference]: Without dead ends: 5658 [2022-11-03 02:29:16,525 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 [2022-11-03 02:29:16,526 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 123 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:16,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5658 states. [2022-11-03 02:29:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5658 to 5658. [2022-11-03 02:29:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5658 states, 5563 states have (on average 4.0479956857810535) internal successors, (22519), 5657 states have internal predecessors, (22519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:16,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5658 states to 5658 states and 22519 transitions. [2022-11-03 02:29:16,649 INFO L78 Accepts]: Start accepts. Automaton has 5658 states and 22519 transitions. Word has length 14 [2022-11-03 02:29:16,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:16,650 INFO L495 AbstractCegarLoop]: Abstraction has 5658 states and 22519 transitions. [2022-11-03 02:29:16,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5658 states and 22519 transitions. [2022-11-03 02:29:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:29:16,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:16,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:16,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:29:16,654 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:16,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:16,654 INFO L85 PathProgramCache]: Analyzing trace with hash 371990988, now seen corresponding path program 1 times [2022-11-03 02:29:16,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:16,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586914527] [2022-11-03 02:29:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:16,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:16,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586914527] [2022-11-03 02:29:16,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586914527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:16,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:16,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:29:16,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586775518] [2022-11-03 02:29:16,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:16,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:29:16,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:16,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:29:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:29:16,826 INFO L87 Difference]: Start difference. First operand 5658 states and 22519 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2022-11-03 02:29:17,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:17,121 INFO L93 Difference]: Finished difference Result 4268 states and 16872 transitions. [2022-11-03 02:29:17,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:29:17,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 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 [2022-11-03 02:29:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:17,137 INFO L225 Difference]: With dead ends: 4268 [2022-11-03 02:29:17,137 INFO L226 Difference]: Without dead ends: 4112 [2022-11-03 02:29:17,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:29:17,138 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 158 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:17,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 6 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:17,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2022-11-03 02:29:17,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2022-11-03 02:29:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4112 states, 4097 states have (on average 3.951427874054186) internal successors, (16189), 4111 states have internal predecessors, (16189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 16189 transitions. [2022-11-03 02:29:17,238 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 16189 transitions. Word has length 15 [2022-11-03 02:29:17,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:17,239 INFO L495 AbstractCegarLoop]: Abstraction has 4112 states and 16189 transitions. [2022-11-03 02:29:17,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2022-11-03 02:29:17,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 16189 transitions. [2022-11-03 02:29:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:29:17,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:17,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:17,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:29:17,249 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:17,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:17,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1630751506, now seen corresponding path program 1 times [2022-11-03 02:29:17,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:17,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194753004] [2022-11-03 02:29:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:17,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:17,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:17,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194753004] [2022-11-03 02:29:17,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194753004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:17,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:17,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:29:17,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828156951] [2022-11-03 02:29:17,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:17,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:29:17,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:17,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:29:17,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:29:17,489 INFO L87 Difference]: Start difference. First operand 4112 states and 16189 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:17,737 INFO L93 Difference]: Finished difference Result 3816 states and 15383 transitions. [2022-11-03 02:29:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:29:17,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-11-03 02:29:17,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:17,746 INFO L225 Difference]: With dead ends: 3816 [2022-11-03 02:29:17,746 INFO L226 Difference]: Without dead ends: 2892 [2022-11-03 02:29:17,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:29:17,747 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 169 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:17,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 5 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-11-03 02:29:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2892. [2022-11-03 02:29:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2887 states have (on average 3.899896085902321) internal successors, (11259), 2891 states have internal predecessors, (11259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 11259 transitions. [2022-11-03 02:29:17,802 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 11259 transitions. Word has length 18 [2022-11-03 02:29:17,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:17,802 INFO L495 AbstractCegarLoop]: Abstraction has 2892 states and 11259 transitions. [2022-11-03 02:29:17,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 11259 transitions. [2022-11-03 02:29:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:29:17,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:17,812 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] [2022-11-03 02:29:17,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:29:17,813 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-03 02:29:17,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:17,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1680677837, now seen corresponding path program 1 times [2022-11-03 02:29:17,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:17,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387597256] [2022-11-03 02:29:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:17,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:17,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:17,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387597256] [2022-11-03 02:29:17,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387597256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:17,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:17,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:29:17,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901151362] [2022-11-03 02:29:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:17,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:29:17,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:29:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:29:17,991 INFO L87 Difference]: Start difference. First operand 2892 states and 11259 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2022-11-03 02:29:18,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:18,206 INFO L93 Difference]: Finished difference Result 2862 states and 11204 transitions. [2022-11-03 02:29:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:29:18,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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 [2022-11-03 02:29:18,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:18,206 INFO L225 Difference]: With dead ends: 2862 [2022-11-03 02:29:18,206 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:29:18,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:29:18,207 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 168 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:18,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 5 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:18,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:29:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:29:18,209 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) [2022-11-03 02:29:18,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:29:18,209 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-03 02:29:18,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:18,209 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:29:18,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2022-11-03 02:29:18,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:29:18,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:29:18,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2022-11-03 02:29:18,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2022-11-03 02:29:18,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2022-11-03 02:29:18,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2022-11-03 02:29:18,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2022-11-03 02:29:18,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2022-11-03 02:29:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2022-11-03 02:29:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2022-11-03 02:29:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2022-11-03 02:29:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2022-11-03 02:29:18,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2022-11-03 02:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2022-11-03 02:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 45 remaining) [2022-11-03 02:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 45 remaining) [2022-11-03 02:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 45 remaining) [2022-11-03 02:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 45 remaining) [2022-11-03 02:29:18,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2022-11-03 02:29:18,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2022-11-03 02:29:18,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2022-11-03 02:29:18,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2022-11-03 02:29:18,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2022-11-03 02:29:18,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2022-11-03 02:29:18,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2022-11-03 02:29:18,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2022-11-03 02:29:18,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2022-11-03 02:29:18,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2022-11-03 02:29:18,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2022-11-03 02:29:18,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2022-11-03 02:29:18,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2022-11-03 02:29:18,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2022-11-03 02:29:18,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2022-11-03 02:29:18,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2022-11-03 02:29:18,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2022-11-03 02:29:18,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2022-11-03 02:29:18,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2022-11-03 02:29:18,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2022-11-03 02:29:18,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2022-11-03 02:29:18,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2022-11-03 02:29:18,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2022-11-03 02:29:18,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2022-11-03 02:29:18,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2022-11-03 02:29:18,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2022-11-03 02:29:18,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2022-11-03 02:29:18,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2022-11-03 02:29:18,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 45 remaining) [2022-11-03 02:29:18,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:29:18,235 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:18,244 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:29:18,244 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:29:18,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:29:18 BasicIcfg [2022-11-03 02:29:18,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:29:18,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:29:18,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:29:18,250 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:29:18,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:28:29" (3/4) ... [2022-11-03 02:29:18,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:29:18,259 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-03 02:29:18,259 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-03 02:29:18,259 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-03 02:29:18,259 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-03 02:29:18,260 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2022-11-03 02:29:18,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 02:29:18,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-03 02:29:18,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:29:18,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:29:18,319 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:29:18,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:29:18,320 INFO L158 Benchmark]: Toolchain (without parser) took 49735.55ms. Allocated memory was 100.7MB in the beginning and 13.8GB in the end (delta: 13.7GB). Free memory was 70.4MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2022-11-03 02:29:18,320 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:29:18,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.36ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 74.5MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:29:18,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.54ms. Allocated memory is still 100.7MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:29:18,321 INFO L158 Benchmark]: Boogie Preprocessor took 49.77ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 70.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:29:18,322 INFO L158 Benchmark]: RCFGBuilder took 839.07ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 70.6MB in the beginning and 117.5MB in the end (delta: -46.8MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-11-03 02:29:18,322 INFO L158 Benchmark]: TraceAbstraction took 48300.56ms. Allocated memory was 151.0MB in the beginning and 13.8GB in the end (delta: 13.6GB). Free memory was 116.7MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2022-11-03 02:29:18,323 INFO L158 Benchmark]: Witness Printer took 69.99ms. Allocated memory is still 13.8GB. Free memory was 11.5GB in the beginning and 11.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:29:18,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.36ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 74.5MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.54ms. Allocated memory is still 100.7MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.77ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 70.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 839.07ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 70.6MB in the beginning and 117.5MB in the end (delta: -46.8MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 48300.56ms. Allocated memory was 151.0MB in the beginning and 13.8GB in the end (delta: 13.6GB). Free memory was 116.7MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 69.99ms. Allocated memory is still 13.8GB. Free memory was 11.5GB in the beginning and 11.5GB 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: 11.1s, 198 PlacesBefore, 78 PlacesAfterwards, 184 TransitionsBefore, 62 TransitionsAfterwards, 4234 CoEnabledTransitionPairs, 7 FixpointIterations, 86 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 148 TotalNumberOfCompositions, 18033 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6802, positive: 6479, positive conditional: 0, positive unconditional: 6479, negative: 323, negative conditional: 0, negative unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2688, positive: 2615, positive conditional: 0, positive unconditional: 2615, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2688, positive: 2475, positive conditional: 0, positive unconditional: 2475, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 213, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 648, positive: 441, positive conditional: 0, positive unconditional: 441, negative: 207, negative conditional: 0, negative unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6802, positive: 3864, positive conditional: 0, positive unconditional: 3864, negative: 250, negative conditional: 0, negative unconditional: 250, unknown: 2688, unknown conditional: 0, unknown unconditional: 2688] , Statistics on independence cache: Total cache size (in pairs): 472, Positive cache size: 436, Positive conditional cache size: 0, Positive unconditional cache size: 436, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: 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 11 procedures, 244 locations, 45 error locations. Started 1 CEGAR loops. OverallTime: 48.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1088 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1088 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 766 mSDsCounter, 228 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1618 IncrementalHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 228 mSolverCounterUnsat, 12 mSDtfsCounter, 1618 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93610occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 13460 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:29:18,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da3f5dad-54d1-4735-b1cd-80683986aa27/bin/utaipan-7li7fVZpFI/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