./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:04:17,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:04:17,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:04:17,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:04:17,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:04:17,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:04:17,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:04:17,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:04:17,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:04:17,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:04:17,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:04:17,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:04:17,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:04:17,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:04:17,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:04:17,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:04:17,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:04:17,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:04:17,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:04:17,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:04:17,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:04:17,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:04:17,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:04:17,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:04:17,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:04:17,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:04:17,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:04:17,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:04:17,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:04:17,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:04:17,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:04:17,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:04:17,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:04:17,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:04:17,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:04:17,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:04:17,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:04:17,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:04:17,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:04:17,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:04:17,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:04:17,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 07:04:17,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:04:17,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:04:17,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:04:17,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:04:17,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:04:17,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:04:17,240 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:04:17,241 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:04:17,241 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:04:17,241 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:04:17,241 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:04:17,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:04:17,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:04:17,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:04:17,242 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:04:17,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:04:17,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:04:17,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:04:17,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:04:17,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:04:17,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:04:17,244 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:04:17,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:04:17,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:04:17,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:04:17,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:04:17,245 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:04:17,245 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:04:17,245 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:04:17,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:04:17,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:04:17,246 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:04:17,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:04:17,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:04:17,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:04:17,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:04:17,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:04:17,247 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:04:17,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:04:17,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:04:17,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:04:17,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:04:17,248 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_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2022-12-14 07:04:17,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:04:17,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:04:17,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:04:17,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:04:17,454 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:04:17,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-12-14 07:04:20,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:04:20,187 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:04:20,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-12-14 07:04:20,199 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/data/9b8ca02f7/3aab218698d5476a8812b239fe4f50cd/FLAGcb692e288 [2022-12-14 07:04:20,210 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/data/9b8ca02f7/3aab218698d5476a8812b239fe4f50cd [2022-12-14 07:04:20,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:04:20,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:04:20,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:04:20,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:04:20,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:04:20,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e005c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20, skipping insertion in model container [2022-12-14 07:04:20,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:04:20,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:04:20,451 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-14 07:04:20,456 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-12-14 07:04:20,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-12-14 07:04:20,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:04:20,473 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:04:20,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-14 07:04:20,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-12-14 07:04:20,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-12-14 07:04:20,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:04:20,527 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:04:20,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20 WrapperNode [2022-12-14 07:04:20,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:04:20,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:04:20,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:04:20,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:04:20,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,562 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-12-14 07:04:20,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:04:20,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:04:20,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:04:20,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:04:20,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,581 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:04:20,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:04:20,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:04:20,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:04:20,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (1/1) ... [2022-12-14 07:04:20,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:04:20,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:20,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:04:20,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:04:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:04:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-14 07:04:20,644 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-14 07:04:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-14 07:04:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:04:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:04:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:04:20,646 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 07:04:20,763 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:04:20,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:04:21,040 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:04:21,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:04:21,048 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 07:04:21,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:21 BoogieIcfgContainer [2022-12-14 07:04:21,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:04:21,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:04:21,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:04:21,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:04:21,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:04:20" (1/3) ... [2022-12-14 07:04:21,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5279bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:21, skipping insertion in model container [2022-12-14 07:04:21,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:20" (2/3) ... [2022-12-14 07:04:21,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5279bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:21, skipping insertion in model container [2022-12-14 07:04:21,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:21" (3/3) ... [2022-12-14 07:04:21,059 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-12-14 07:04:21,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:04:21,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-14 07:04:21,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:04:21,132 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 07:04:21,158 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:04:21,170 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 174 transitions, 364 flow [2022-12-14 07:04:21,173 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 174 transitions, 364 flow [2022-12-14 07:04:21,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 174 transitions, 364 flow [2022-12-14 07:04:21,224 INFO L130 PetriNetUnfolder]: 11/172 cut-off events. [2022-12-14 07:04:21,224 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 07:04:21,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 172 events. 11/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 355 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2022-12-14 07:04:21,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 6010 [2022-12-14 07:04:40,775 INFO L134 LiptonReduction]: Checked pairs total: 13450 [2022-12-14 07:04:40,775 INFO L136 LiptonReduction]: Total number of compositions: 190 [2022-12-14 07:04:40,781 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 51 transitions, 118 flow [2022-12-14 07:04:40,820 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 730 states, 650 states have (on average 3.4553846153846153) internal successors, (2246), 729 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:40,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:04:40,837 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@3e4900db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:04:40,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 07:04:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 730 states, 650 states have (on average 3.4553846153846153) internal successors, (2246), 729 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:40,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 07:04:40,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:40,844 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 07:04:40,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:40,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash 710, now seen corresponding path program 1 times [2022-12-14 07:04:40,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:40,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92565743] [2022-12-14 07:04:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:40,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:40,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:40,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92565743] [2022-12-14 07:04:40,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92565743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:40,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:40,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 07:04:40,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748754710] [2022-12-14 07:04:40,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:40,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:04:40,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:40,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:04:40,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:04:40,979 INFO L87 Difference]: Start difference. First operand has 730 states, 650 states have (on average 3.4553846153846153) internal successors, (2246), 729 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:41,058 INFO L93 Difference]: Finished difference Result 676 states and 1988 transitions. [2022-12-14 07:04:41,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:04:41,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 1 [2022-12-14 07:04:41,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:41,072 INFO L225 Difference]: With dead ends: 676 [2022-12-14 07:04:41,072 INFO L226 Difference]: Without dead ends: 676 [2022-12-14 07:04:41,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:04:41,075 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:41,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-12-14 07:04:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2022-12-14 07:04:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 612 states have (on average 3.2483660130718954) internal successors, (1988), 675 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 1988 transitions. [2022-12-14 07:04:41,129 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 1988 transitions. Word has length 1 [2022-12-14 07:04:41,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:41,129 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 1988 transitions. [2022-12-14 07:04:41,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,129 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1988 transitions. [2022-12-14 07:04:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 07:04:41,129 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:41,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 07:04:41,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:04:41,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:41,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash 698999, now seen corresponding path program 1 times [2022-12-14 07:04:41,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:41,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992811303] [2022-12-14 07:04:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:41,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:41,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:41,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992811303] [2022-12-14 07:04:41,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992811303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:41,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:41,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:04:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877893202] [2022-12-14 07:04:41,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:41,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:41,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:41,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,286 INFO L87 Difference]: Start difference. First operand 676 states and 1988 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:41,336 INFO L93 Difference]: Finished difference Result 652 states and 1936 transitions. [2022-12-14 07:04:41,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:41,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 07:04:41,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:41,339 INFO L225 Difference]: With dead ends: 652 [2022-12-14 07:04:41,339 INFO L226 Difference]: Without dead ends: 652 [2022-12-14 07:04:41,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,340 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:41,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-12-14 07:04:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2022-12-14 07:04:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 596 states have (on average 3.248322147651007) internal successors, (1936), 651 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1936 transitions. [2022-12-14 07:04:41,358 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1936 transitions. Word has length 3 [2022-12-14 07:04:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:41,359 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1936 transitions. [2022-12-14 07:04:41,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1936 transitions. [2022-12-14 07:04:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 07:04:41,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:41,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 07:04:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:04:41,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash 699000, now seen corresponding path program 1 times [2022-12-14 07:04:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:41,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36647558] [2022-12-14 07:04:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:41,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:41,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:41,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36647558] [2022-12-14 07:04:41,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36647558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:41,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:41,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:04:41,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122469220] [2022-12-14 07:04:41,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:41,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:41,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,410 INFO L87 Difference]: Start difference. First operand 652 states and 1936 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:41,464 INFO L93 Difference]: Finished difference Result 628 states and 1884 transitions. [2022-12-14 07:04:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:41,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 07:04:41,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:41,466 INFO L225 Difference]: With dead ends: 628 [2022-12-14 07:04:41,467 INFO L226 Difference]: Without dead ends: 628 [2022-12-14 07:04:41,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,468 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:41,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:41,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-12-14 07:04:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-12-14 07:04:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 580 states have (on average 3.2482758620689656) internal successors, (1884), 627 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 1884 transitions. [2022-12-14 07:04:41,484 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 1884 transitions. Word has length 3 [2022-12-14 07:04:41,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:41,485 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 1884 transitions. [2022-12-14 07:04:41,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 1884 transitions. [2022-12-14 07:04:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:04:41,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:41,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:04:41,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:04:41,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:41,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:41,486 INFO L85 PathProgramCache]: Analyzing trace with hash 671720773, now seen corresponding path program 1 times [2022-12-14 07:04:41,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:41,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523002026] [2022-12-14 07:04:41,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:41,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:41,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:41,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523002026] [2022-12-14 07:04:41,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523002026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:41,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:41,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:04:41,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254085321] [2022-12-14 07:04:41,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:41,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:41,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:41,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:41,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,718 INFO L87 Difference]: Start difference. First operand 628 states and 1884 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:41,838 INFO L93 Difference]: Finished difference Result 1016 states and 3033 transitions. [2022-12-14 07:04:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:41,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 07:04:41,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:41,843 INFO L225 Difference]: With dead ends: 1016 [2022-12-14 07:04:41,843 INFO L226 Difference]: Without dead ends: 1016 [2022-12-14 07:04:41,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,844 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:41,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 8 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-12-14 07:04:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 978. [2022-12-14 07:04:41,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 930 states have (on average 3.2204301075268815) internal successors, (2995), 977 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 2995 transitions. [2022-12-14 07:04:41,866 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 2995 transitions. Word has length 5 [2022-12-14 07:04:41,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:41,867 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 2995 transitions. [2022-12-14 07:04:41,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,867 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 2995 transitions. [2022-12-14 07:04:41,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:04:41,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:41,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:04:41,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:04:41,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:41,868 INFO L85 PathProgramCache]: Analyzing trace with hash 671720774, now seen corresponding path program 1 times [2022-12-14 07:04:41,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:41,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478171153] [2022-12-14 07:04:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:41,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:41,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:41,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478171153] [2022-12-14 07:04:41,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478171153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:41,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:41,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:04:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668743188] [2022-12-14 07:04:41,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:41,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:41,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,930 INFO L87 Difference]: Start difference. First operand 978 states and 2995 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:41,985 INFO L93 Difference]: Finished difference Result 856 states and 2628 transitions. [2022-12-14 07:04:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:41,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 07:04:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:41,991 INFO L225 Difference]: With dead ends: 856 [2022-12-14 07:04:41,992 INFO L226 Difference]: Without dead ends: 856 [2022-12-14 07:04:41,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:41,993 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:41,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-12-14 07:04:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2022-12-14 07:04:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 829 states have (on average 3.170084439083233) internal successors, (2628), 855 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 2628 transitions. [2022-12-14 07:04:42,020 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 2628 transitions. Word has length 5 [2022-12-14 07:04:42,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:42,020 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 2628 transitions. [2022-12-14 07:04:42,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 2628 transitions. [2022-12-14 07:04:42,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:04:42,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:42,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:04:42,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:04:42,021 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:42,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash 671752848, now seen corresponding path program 1 times [2022-12-14 07:04:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:42,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445077440] [2022-12-14 07:04:42,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:42,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:42,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:42,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445077440] [2022-12-14 07:04:42,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445077440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:42,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:42,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:04:42,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738930506] [2022-12-14 07:04:42,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:42,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:42,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:42,084 INFO L87 Difference]: Start difference. First operand 856 states and 2628 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:42,134 INFO L93 Difference]: Finished difference Result 662 states and 1966 transitions. [2022-12-14 07:04:42,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:42,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 07:04:42,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:42,139 INFO L225 Difference]: With dead ends: 662 [2022-12-14 07:04:42,139 INFO L226 Difference]: Without dead ends: 662 [2022-12-14 07:04:42,139 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 [2022-12-14 07:04:42,140 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:42,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:42,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-12-14 07:04:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2022-12-14 07:04:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 644 states have (on average 3.0527950310559007) internal successors, (1966), 661 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1966 transitions. [2022-12-14 07:04:42,161 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1966 transitions. Word has length 5 [2022-12-14 07:04:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:42,162 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 1966 transitions. [2022-12-14 07:04:42,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,162 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1966 transitions. [2022-12-14 07:04:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:04:42,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:42,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:04:42,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:04:42,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:42,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:42,163 INFO L85 PathProgramCache]: Analyzing trace with hash 671752849, now seen corresponding path program 1 times [2022-12-14 07:04:42,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:42,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483749869] [2022-12-14 07:04:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:42,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:42,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:42,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483749869] [2022-12-14 07:04:42,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483749869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:42,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:42,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:04:42,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677637319] [2022-12-14 07:04:42,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:42,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:42,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:42,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:42,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:42,258 INFO L87 Difference]: Start difference. First operand 662 states and 1966 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:42,304 INFO L93 Difference]: Finished difference Result 468 states and 1304 transitions. [2022-12-14 07:04:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:42,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 07:04:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:42,307 INFO L225 Difference]: With dead ends: 468 [2022-12-14 07:04:42,307 INFO L226 Difference]: Without dead ends: 468 [2022-12-14 07:04:42,307 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 [2022-12-14 07:04:42,308 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:42,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 4 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:42,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-12-14 07:04:42,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2022-12-14 07:04:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 459 states have (on average 2.840958605664488) internal successors, (1304), 467 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1304 transitions. [2022-12-14 07:04:42,322 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1304 transitions. Word has length 5 [2022-12-14 07:04:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:42,322 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 1304 transitions. [2022-12-14 07:04:42,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1304 transitions. [2022-12-14 07:04:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 07:04:42,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:42,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 07:04:42,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:04:42,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:42,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash -651491122, now seen corresponding path program 1 times [2022-12-14 07:04:42,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:42,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681258668] [2022-12-14 07:04:42,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:42,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:42,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:42,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681258668] [2022-12-14 07:04:42,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681258668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:42,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:42,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:04:42,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109831089] [2022-12-14 07:04:42,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:42,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:42,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:42,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:42,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:42,406 INFO L87 Difference]: Start difference. First operand 468 states and 1304 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-12-14 07:04:42,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:42,472 INFO L93 Difference]: Finished difference Result 406 states and 1096 transitions. [2022-12-14 07:04:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:42,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 [2022-12-14 07:04:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:42,473 INFO L225 Difference]: With dead ends: 406 [2022-12-14 07:04:42,473 INFO L226 Difference]: Without dead ends: 406 [2022-12-14 07:04:42,474 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 [2022-12-14 07:04:42,474 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:42,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-12-14 07:04:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 392. [2022-12-14 07:04:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 383 states have (on average 2.825065274151436) internal successors, (1082), 391 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 1082 transitions. [2022-12-14 07:04:42,482 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 1082 transitions. Word has length 6 [2022-12-14 07:04:42,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:42,482 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 1082 transitions. [2022-12-14 07:04:42,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-12-14 07:04:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 1082 transitions. [2022-12-14 07:04:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 07:04:42,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:42,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:42,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:04:42,483 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:42,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:42,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1278590091, now seen corresponding path program 1 times [2022-12-14 07:04:42,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:42,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492219573] [2022-12-14 07:04:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:42,492 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:42,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016469911] [2022-12-14 07:04:42,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:42,494 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:42,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:04:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:42,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 07:04:42,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:42,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:42,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:42,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492219573] [2022-12-14 07:04:42,598 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:42,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016469911] [2022-12-14 07:04:42,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016469911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:42,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:42,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:04:42,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244384799] [2022-12-14 07:04:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:42,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:42,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:42,600 INFO L87 Difference]: Start difference. First operand 392 states and 1082 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:42,699 INFO L93 Difference]: Finished difference Result 440 states and 1208 transitions. [2022-12-14 07:04:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:04:42,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 07:04:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:42,702 INFO L225 Difference]: With dead ends: 440 [2022-12-14 07:04:42,702 INFO L226 Difference]: Without dead ends: 440 [2022-12-14 07:04:42,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:42,703 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:42,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 16 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-12-14 07:04:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 416. [2022-12-14 07:04:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 407 states have (on average 2.8132678132678133) internal successors, (1145), 415 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 1145 transitions. [2022-12-14 07:04:42,716 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 1145 transitions. Word has length 7 [2022-12-14 07:04:42,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:42,716 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 1145 transitions. [2022-12-14 07:04:42,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:42,717 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 1145 transitions. [2022-12-14 07:04:42,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:04:42,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:42,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:42,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:04:42,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 07:04:42,918 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:42,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:42,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1936042659, now seen corresponding path program 1 times [2022-12-14 07:04:42,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:42,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011515471] [2022-12-14 07:04:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:42,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:42,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:42,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011515471] [2022-12-14 07:04:42,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011515471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:42,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:42,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:04:42,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315447152] [2022-12-14 07:04:42,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:42,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:42,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:42,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:42,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:42,983 INFO L87 Difference]: Start difference. First operand 416 states and 1145 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:43,058 INFO L93 Difference]: Finished difference Result 500 states and 1337 transitions. [2022-12-14 07:04:43,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:43,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 07:04:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:43,061 INFO L225 Difference]: With dead ends: 500 [2022-12-14 07:04:43,061 INFO L226 Difference]: Without dead ends: 492 [2022-12-14 07:04:43,061 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 [2022-12-14 07:04:43,062 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:43,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-14 07:04:43,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 452. [2022-12-14 07:04:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 441 states have (on average 2.81859410430839) internal successors, (1243), 451 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1243 transitions. [2022-12-14 07:04:43,075 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1243 transitions. Word has length 8 [2022-12-14 07:04:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:43,075 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 1243 transitions. [2022-12-14 07:04:43,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1243 transitions. [2022-12-14 07:04:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:04:43,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:43,076 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:43,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 07:04:43,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash -555643137, now seen corresponding path program 1 times [2022-12-14 07:04:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:43,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406388695] [2022-12-14 07:04:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:43,091 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:43,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003980988] [2022-12-14 07:04:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:43,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:43,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:43,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:04:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:43,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 07:04:43,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:43,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:43,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:43,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406388695] [2022-12-14 07:04:43,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:43,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003980988] [2022-12-14 07:04:43,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003980988] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 07:04:43,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:04:43,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-12-14 07:04:43,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094960624] [2022-12-14 07:04:43,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:43,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:43,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:43,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:43,202 INFO L87 Difference]: Start difference. First operand 452 states and 1243 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2022-12-14 07:04:43,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:43,283 INFO L93 Difference]: Finished difference Result 342 states and 882 transitions. [2022-12-14 07:04:43,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:43,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 [2022-12-14 07:04:43,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:43,285 INFO L225 Difference]: With dead ends: 342 [2022-12-14 07:04:43,285 INFO L226 Difference]: Without dead ends: 314 [2022-12-14 07:04:43,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:43,286 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:43,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 4 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:43,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-12-14 07:04:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282. [2022-12-14 07:04:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 273 states have (on average 2.706959706959707) internal successors, (739), 281 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 739 transitions. [2022-12-14 07:04:43,295 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 739 transitions. Word has length 12 [2022-12-14 07:04:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:43,295 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 739 transitions. [2022-12-14 07:04:43,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2022-12-14 07:04:43,295 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 739 transitions. [2022-12-14 07:04:43,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:04:43,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:43,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:43,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:04:43,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:43,497 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:43,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash -638973123, now seen corresponding path program 1 times [2022-12-14 07:04:43,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:43,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599412948] [2022-12-14 07:04:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:43,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:43,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599412948] [2022-12-14 07:04:43,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599412948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:43,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:43,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:04:43,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868108965] [2022-12-14 07:04:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:43,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:43,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:43,530 INFO L87 Difference]: Start difference. First operand 282 states and 739 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:43,600 INFO L93 Difference]: Finished difference Result 354 states and 913 transitions. [2022-12-14 07:04:43,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:43,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 07:04:43,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:43,603 INFO L225 Difference]: With dead ends: 354 [2022-12-14 07:04:43,603 INFO L226 Difference]: Without dead ends: 354 [2022-12-14 07:04:43,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:43,604 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:43,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 8 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-12-14 07:04:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 282. [2022-12-14 07:04:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 273 states have (on average 2.67032967032967) internal successors, (729), 281 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 729 transitions. [2022-12-14 07:04:43,613 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 729 transitions. Word has length 13 [2022-12-14 07:04:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:43,613 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 729 transitions. [2022-12-14 07:04:43,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 729 transitions. [2022-12-14 07:04:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:04:43,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:43,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:43,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 07:04:43,614 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:43,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:43,615 INFO L85 PathProgramCache]: Analyzing trace with hash 299751558, now seen corresponding path program 1 times [2022-12-14 07:04:43,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:43,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475899604] [2022-12-14 07:04:43,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:43,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:43,630 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:43,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060330196] [2022-12-14 07:04:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:43,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:43,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:43,631 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:43,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:04:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:43,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 07:04:43,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:43,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:04:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:43,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:43,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:43,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475899604] [2022-12-14 07:04:43,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:43,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060330196] [2022-12-14 07:04:43,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060330196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:43,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:43,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:04:43,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723535326] [2022-12-14 07:04:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:43,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:43,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:43,750 INFO L87 Difference]: Start difference. First operand 282 states and 729 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2022-12-14 07:04:43,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:43,811 INFO L93 Difference]: Finished difference Result 204 states and 468 transitions. [2022-12-14 07:04:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:43,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 [2022-12-14 07:04:43,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:43,813 INFO L225 Difference]: With dead ends: 204 [2022-12-14 07:04:43,813 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 07:04:43,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:04:43,814 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:43,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 07:04:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-12-14 07:04:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 187 states have (on average 2.379679144385027) internal successors, (445), 191 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 445 transitions. [2022-12-14 07:04:43,819 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 445 transitions. Word has length 14 [2022-12-14 07:04:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:43,819 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 445 transitions. [2022-12-14 07:04:43,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2022-12-14 07:04:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 445 transitions. [2022-12-14 07:04:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 07:04:43,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:43,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:43,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:04:44,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:44,020 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:44,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:44,021 INFO L85 PathProgramCache]: Analyzing trace with hash 539274172, now seen corresponding path program 1 times [2022-12-14 07:04:44,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:44,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219439013] [2022-12-14 07:04:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:44,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:44,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:44,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219439013] [2022-12-14 07:04:44,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219439013] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:04:44,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78742487] [2022-12-14 07:04:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:44,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:44,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:44,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:04:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:44,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:04:44,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:04:44,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:44,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78742487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:44,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:04:44,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 07:04:44,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640416857] [2022-12-14 07:04:44,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:44,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:44,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:44,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:44,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:44,163 INFO L87 Difference]: Start difference. First operand 192 states and 445 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-12-14 07:04:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:44,240 INFO L93 Difference]: Finished difference Result 282 states and 639 transitions. [2022-12-14 07:04:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:44,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2022-12-14 07:04:44,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:44,242 INFO L225 Difference]: With dead ends: 282 [2022-12-14 07:04:44,242 INFO L226 Difference]: Without dead ends: 282 [2022-12-14 07:04:44,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:44,243 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:44,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 10 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:44,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-12-14 07:04:44,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 222. [2022-12-14 07:04:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 2.359447004608295) internal successors, (512), 221 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:44,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 512 transitions. [2022-12-14 07:04:44,249 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 512 transitions. Word has length 15 [2022-12-14 07:04:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:44,249 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 512 transitions. [2022-12-14 07:04:44,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-12-14 07:04:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 512 transitions. [2022-12-14 07:04:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 07:04:44,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:44,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:44,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:04:44,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 07:04:44,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash -149777327, now seen corresponding path program 1 times [2022-12-14 07:04:44,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:44,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031356826] [2022-12-14 07:04:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:44,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:44,464 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:44,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899893198] [2022-12-14 07:04:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:44,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:44,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:44,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:04:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:44,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 07:04:44,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:44,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:44,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031356826] [2022-12-14 07:04:44,717 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899893198] [2022-12-14 07:04:44,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899893198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:44,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:44,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:04:44,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444457727] [2022-12-14 07:04:44,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:44,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:44,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:44,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:44,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:44,718 INFO L87 Difference]: Start difference. First operand 222 states and 512 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-12-14 07:04:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:44,838 INFO L93 Difference]: Finished difference Result 362 states and 832 transitions. [2022-12-14 07:04:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:04:44,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2022-12-14 07:04:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:44,840 INFO L225 Difference]: With dead ends: 362 [2022-12-14 07:04:44,840 INFO L226 Difference]: Without dead ends: 362 [2022-12-14 07:04:44,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:44,841 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 52 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:44,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 12 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:44,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-12-14 07:04:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 264. [2022-12-14 07:04:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 2.4787644787644787) internal successors, (642), 263 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 642 transitions. [2022-12-14 07:04:44,846 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 642 transitions. Word has length 15 [2022-12-14 07:04:44,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:44,846 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 642 transitions. [2022-12-14 07:04:44,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-12-14 07:04:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 642 transitions. [2022-12-14 07:04:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 07:04:44,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:44,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:44,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:04:45,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:45,047 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:45,048 INFO L85 PathProgramCache]: Analyzing trace with hash -348129185, now seen corresponding path program 1 times [2022-12-14 07:04:45,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:45,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075502729] [2022-12-14 07:04:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:45,060 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:45,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021307137] [2022-12-14 07:04:45,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:45,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:45,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:45,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:45,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:04:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:45,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 07:04:45,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:45,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:45,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:45,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075502729] [2022-12-14 07:04:45,483 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:45,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021307137] [2022-12-14 07:04:45,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021307137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:45,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:45,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:04:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14049059] [2022-12-14 07:04:45,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:45,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:04:45,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:45,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:04:45,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:45,492 INFO L87 Difference]: Start difference. First operand 264 states and 642 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:45,602 INFO L93 Difference]: Finished difference Result 298 states and 674 transitions. [2022-12-14 07:04:45,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:04:45,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-12-14 07:04:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:45,604 INFO L225 Difference]: With dead ends: 298 [2022-12-14 07:04:45,604 INFO L226 Difference]: Without dead ends: 298 [2022-12-14 07:04:45,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:04:45,605 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:45,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-12-14 07:04:45,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 250. [2022-12-14 07:04:45,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 2.3959183673469386) internal successors, (587), 249 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 587 transitions. [2022-12-14 07:04:45,610 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 587 transitions. Word has length 16 [2022-12-14 07:04:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:45,610 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 587 transitions. [2022-12-14 07:04:45,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:45,610 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 587 transitions. [2022-12-14 07:04:45,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:04:45,610 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:45,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:45,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 07:04:45,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 07:04:45,811 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:45,812 INFO L85 PathProgramCache]: Analyzing trace with hash 947232278, now seen corresponding path program 1 times [2022-12-14 07:04:45,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:45,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831453098] [2022-12-14 07:04:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:45,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:45,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:04:45,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:45,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831453098] [2022-12-14 07:04:45,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831453098] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:04:45,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190504473] [2022-12-14 07:04:45,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:45,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:45,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:45,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:45,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 07:04:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:45,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:04:45,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:04:45,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:45,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:04:45,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190504473] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:45,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1360784235] [2022-12-14 07:04:45,970 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 07:04:45,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:04:45,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 07:04:45,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733321253] [2022-12-14 07:04:45,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:04:45,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:04:45,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:45,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:04:45,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:04:45,973 INFO L87 Difference]: Start difference. First operand 250 states and 587 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:46,122 INFO L93 Difference]: Finished difference Result 516 states and 1166 transitions. [2022-12-14 07:04:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:04:46,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 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 17 [2022-12-14 07:04:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:46,126 INFO L225 Difference]: With dead ends: 516 [2022-12-14 07:04:46,126 INFO L226 Difference]: Without dead ends: 516 [2022-12-14 07:04:46,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:04:46,127 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 144 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:46,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 18 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-12-14 07:04:46,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 494. [2022-12-14 07:04:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 487 states have (on average 2.35523613963039) internal successors, (1147), 493 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 1147 transitions. [2022-12-14 07:04:46,135 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 1147 transitions. Word has length 17 [2022-12-14 07:04:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:46,135 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 1147 transitions. [2022-12-14 07:04:46,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1147 transitions. [2022-12-14 07:04:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:04:46,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:46,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:46,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 07:04:46,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 07:04:46,338 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2092862717, now seen corresponding path program 1 times [2022-12-14 07:04:46,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:46,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416186137] [2022-12-14 07:04:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:46,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:46,395 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:46,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357664532] [2022-12-14 07:04:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:46,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:46,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:46,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:46,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 07:04:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:46,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 07:04:46,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:46,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:46,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-12-14 07:04:46,749 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 07:04:46,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 07:04:46,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-14 07:04:46,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 07:04:46,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-12-14 07:04:46,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:46,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:46,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:46,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416186137] [2022-12-14 07:04:46,967 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:46,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357664532] [2022-12-14 07:04:46,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357664532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:46,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:04:46,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:04:46,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272958140] [2022-12-14 07:04:46,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:46,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:04:46,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:04:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:04:46,968 INFO L87 Difference]: Start difference. First operand 494 states and 1147 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:47,166 INFO L93 Difference]: Finished difference Result 809 states and 1872 transitions. [2022-12-14 07:04:47,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:04:47,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-12-14 07:04:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:47,169 INFO L225 Difference]: With dead ends: 809 [2022-12-14 07:04:47,169 INFO L226 Difference]: Without dead ends: 809 [2022-12-14 07:04:47,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:04:47,170 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 102 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:47,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 20 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:04:47,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-12-14 07:04:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 514. [2022-12-14 07:04:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 507 states have (on average 2.329388560157791) internal successors, (1181), 513 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1181 transitions. [2022-12-14 07:04:47,184 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1181 transitions. Word has length 17 [2022-12-14 07:04:47,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:47,184 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 1181 transitions. [2022-12-14 07:04:47,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1181 transitions. [2022-12-14 07:04:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 07:04:47,185 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:47,186 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:47,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 07:04:47,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 07:04:47,388 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1242997028, now seen corresponding path program 1 times [2022-12-14 07:04:47,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:47,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294701597] [2022-12-14 07:04:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:47,432 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082138183] [2022-12-14 07:04:47,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:47,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:47,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:47,436 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:47,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 07:04:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:47,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 07:04:47,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:04:47,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-12-14 07:04:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:47,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:51,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:51,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294701597] [2022-12-14 07:04:51,344 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:51,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082138183] [2022-12-14 07:04:51,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082138183] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:51,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1886086921] [2022-12-14 07:04:51,345 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 07:04:51,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:04:51,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2022-12-14 07:04:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919274345] [2022-12-14 07:04:51,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:04:51,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:04:51,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:51,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:04:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:04:51,347 INFO L87 Difference]: Start difference. First operand 514 states and 1181 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:51,454 INFO L93 Difference]: Finished difference Result 602 states and 1348 transitions. [2022-12-14 07:04:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:04:51,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 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 [2022-12-14 07:04:51,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:51,457 INFO L225 Difference]: With dead ends: 602 [2022-12-14 07:04:51,457 INFO L226 Difference]: Without dead ends: 602 [2022-12-14 07:04:51,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:04:51,457 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 60 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:51,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 8 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:04:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-12-14 07:04:51,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 486. [2022-12-14 07:04:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 483 states have (on average 2.269151138716356) internal successors, (1096), 485 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1096 transitions. [2022-12-14 07:04:51,464 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1096 transitions. Word has length 22 [2022-12-14 07:04:51,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:51,465 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 1096 transitions. [2022-12-14 07:04:51,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:51,465 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1096 transitions. [2022-12-14 07:04:51,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 07:04:51,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:51,465 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:51,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 07:04:51,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:51,666 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:51,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1135924467, now seen corresponding path program 2 times [2022-12-14 07:04:51,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:51,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407156794] [2022-12-14 07:04:51,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:51,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:04:51,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:51,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407156794] [2022-12-14 07:04:51,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407156794] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:04:51,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303515177] [2022-12-14 07:04:51,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:04:51,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:51,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:51,853 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:51,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 07:04:51,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 07:04:51,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:04:51,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 07:04:51,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 07:04:52,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:04:52,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303515177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:04:52,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:04:52,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2022-12-14 07:04:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870915751] [2022-12-14 07:04:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:04:52,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:04:52,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:52,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:04:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:52,069 INFO L87 Difference]: Start difference. First operand 486 states and 1096 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:52,105 INFO L93 Difference]: Finished difference Result 485 states and 1095 transitions. [2022-12-14 07:04:52,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:04:52,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 23 [2022-12-14 07:04:52,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:52,107 INFO L225 Difference]: With dead ends: 485 [2022-12-14 07:04:52,107 INFO L226 Difference]: Without dead ends: 284 [2022-12-14 07:04:52,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:04:52,107 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:52,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:04:52,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-12-14 07:04:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 226. [2022-12-14 07:04:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.9776785714285714) internal successors, (443), 225 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 443 transitions. [2022-12-14 07:04:52,112 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 443 transitions. Word has length 23 [2022-12-14 07:04:52,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:52,112 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 443 transitions. [2022-12-14 07:04:52,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:52,112 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 443 transitions. [2022-12-14 07:04:52,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 07:04:52,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:52,112 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:52,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 07:04:52,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:52,313 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t2Err2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:04:52,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1815214713, now seen corresponding path program 1 times [2022-12-14 07:04:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:52,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665523590] [2022-12-14 07:04:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:52,328 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:52,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292442249] [2022-12-14 07:04:52,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:52,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:52,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:52,329 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:52,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 07:04:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:53,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 07:04:53,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:53,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:04:56,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665523590] [2022-12-14 07:04:56,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:56,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292442249] [2022-12-14 07:04:56,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292442249] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:56,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1254990364] [2022-12-14 07:04:56,310 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 07:04:56,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:04:56,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-12-14 07:04:56,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778829906] [2022-12-14 07:04:56,311 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:04:56,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 07:04:56,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:56,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 07:04:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:04:56,312 INFO L87 Difference]: Start difference. First operand 226 states and 443 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:59,918 INFO L93 Difference]: Finished difference Result 352 states and 677 transitions. [2022-12-14 07:04:59,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 07:04:59,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 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 30 [2022-12-14 07:04:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:59,919 INFO L225 Difference]: With dead ends: 352 [2022-12-14 07:04:59,919 INFO L226 Difference]: Without dead ends: 352 [2022-12-14 07:04:59,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-12-14 07:04:59,920 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 103 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:59,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 52 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 07:04:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-12-14 07:04:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 324. [2022-12-14 07:04:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 322 states have (on average 1.9596273291925466) internal successors, (631), 323 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 631 transitions. [2022-12-14 07:04:59,924 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 631 transitions. Word has length 30 [2022-12-14 07:04:59,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:59,924 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 631 transitions. [2022-12-14 07:04:59,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:04:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 631 transitions. [2022-12-14 07:04:59,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 07:04:59,925 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:59,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:59,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 07:05:00,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-14 07:05:00,126 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t2Err2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:05:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:00,127 INFO L85 PathProgramCache]: Analyzing trace with hash -437115691, now seen corresponding path program 1 times [2022-12-14 07:05:00,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:00,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129442872] [2022-12-14 07:05:00,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:00,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:00,174 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:05:00,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889977435] [2022-12-14 07:05:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:00,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:05:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:05:00,177 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:05:00,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 07:05:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:00,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 76 conjunts are in the unsatisfiable core [2022-12-14 07:05:00,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:05:00,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:05:00,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:05:00,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:05:00,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-12-14 07:05:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:05:00,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-12-14 07:05:00,732 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 07:05:00,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 07:05:00,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-14 07:05:00,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 07:05:01,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-12-14 07:05:01,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-12-14 07:05:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:05:01,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:05:52,436 WARN L233 SmtUtils]: Spent 30.21s on a formula simplification. DAG size of input: 281 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:06:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:06:06,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:06:06,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129442872] [2022-12-14 07:06:06,781 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:06:06,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889977435] [2022-12-14 07:06:06,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889977435] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:06:06,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1152699694] [2022-12-14 07:06:06,782 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 07:06:06,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:06:06,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2022-12-14 07:06:06,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368285301] [2022-12-14 07:06:06,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:06:06,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 07:06:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:06:06,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 07:06:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=552, Unknown=1, NotChecked=0, Total=650 [2022-12-14 07:06:06,784 INFO L87 Difference]: Start difference. First operand 324 states and 631 transitions. Second operand has 26 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:06:42,441 WARN L233 SmtUtils]: Spent 30.42s on a formula simplification. DAG size of input: 248 DAG size of output: 163 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:07:10,344 WARN L233 SmtUtils]: Spent 16.96s on a formula simplification. DAG size of input: 206 DAG size of output: 178 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:08:05,644 WARN L233 SmtUtils]: Spent 54.50s on a formula simplification. DAG size of input: 302 DAG size of output: 217 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:08:27,107 WARN L233 SmtUtils]: Spent 18.96s on a formula simplification. DAG size of input: 200 DAG size of output: 143 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:19,767 WARN L233 SmtUtils]: Spent 50.16s on a formula simplification. DAG size of input: 275 DAG size of output: 190 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:39,514 WARN L233 SmtUtils]: Spent 16.78s on a formula simplification. DAG size of input: 150 DAG size of output: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:40,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:09:49,747 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:10:00,758 WARN L233 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:10:36,982 WARN L233 SmtUtils]: Spent 33.40s on a formula simplification. DAG size of input: 260 DAG size of output: 232 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:10:48,845 WARN L233 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 238 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:10:58,204 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:11:00,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:11:03,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:11:04,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:12:10,398 WARN L233 SmtUtils]: Spent 57.89s on a formula simplification. DAG size of input: 359 DAG size of output: 277 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:12:48,995 WARN L233 SmtUtils]: Spent 34.64s on a formula simplification. DAG size of input: 233 DAG size of output: 205 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:13:18,191 WARN L233 SmtUtils]: Spent 26.26s on a formula simplification. DAG size of input: 204 DAG size of output: 176 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:13:39,813 WARN L233 SmtUtils]: Spent 19.26s on a formula simplification. DAG size of input: 258 DAG size of output: 204 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:13:47,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:13:50,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:14:00,156 WARN L233 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 256 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:14:25,466 WARN L233 SmtUtils]: Spent 20.25s on a formula simplification. DAG size of input: 177 DAG size of output: 149 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:14:28,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-12-14 07:14:42,346 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 277 DAG size of output: 89 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:06,819 WARN L233 SmtUtils]: Spent 23.23s on a formula simplification. DAG size of input: 183 DAG size of output: 155 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:25,940 WARN L233 SmtUtils]: Spent 16.68s on a formula simplification. DAG size of input: 243 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:40,733 WARN L233 SmtUtils]: Spent 12.66s on a formula simplification. DAG size of input: 269 DAG size of output: 136 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:15:48,450 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 166 DAG size of output: 97 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:16:05,458 WARN L233 SmtUtils]: Spent 13.86s on a formula simplification. DAG size of input: 302 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:16:22,100 WARN L233 SmtUtils]: Spent 13.50s on a formula simplification. DAG size of input: 227 DAG size of output: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:16:33,688 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 225 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:16:43,279 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 171 DAG size of output: 103 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:16:55,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:16:55,360 INFO L93 Difference]: Finished difference Result 800 states and 1554 transitions. [2022-12-14 07:16:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-14 07:16:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 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 31 [2022-12-14 07:16:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:16:55,362 INFO L225 Difference]: With dead ends: 800 [2022-12-14 07:16:55,362 INFO L226 Difference]: Without dead ends: 760 [2022-12-14 07:16:55,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1187 ImplicationChecksByTransitivity, 643.4s TimeCoverageRelationStatistics Valid=767, Invalid=4558, Unknown=77, NotChecked=0, Total=5402 [2022-12-14 07:16:55,364 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 452 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 66 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:16:55,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 95 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1446 Invalid, 37 Unknown, 0 Unchecked, 46.0s Time] [2022-12-14 07:16:55,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-12-14 07:16:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 491. [2022-12-14 07:16:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 489 states have (on average 1.9284253578732107) internal successors, (943), 490 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:16:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 943 transitions. [2022-12-14 07:16:55,370 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 943 transitions. Word has length 31 [2022-12-14 07:16:55,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:16:55,370 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 943 transitions. [2022-12-14 07:16:55,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:16:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 943 transitions. [2022-12-14 07:16:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 07:16:55,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:16:55,371 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:16:55,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 07:16:55,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:16:55,572 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t2Err2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 07:16:55,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:16:55,573 INFO L85 PathProgramCache]: Analyzing trace with hash -266501508, now seen corresponding path program 1 times [2022-12-14 07:16:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:16:55,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894876944] [2022-12-14 07:16:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:16:55,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:16:55,619 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:16:55,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661825175] [2022-12-14 07:16:55,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:16:55,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:16:55,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:16:55,621 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:16:55,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faa38a49-621c-4cab-8010-14d5ce963f89/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 07:16:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:16:55,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 83 conjunts are in the unsatisfiable core [2022-12-14 07:16:56,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:16:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:16:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:16:56,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:16:56,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-12-14 07:16:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:16:56,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-12-14 07:16:56,032 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 07:16:56,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 07:16:56,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 07:16:56,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-14 07:16:57,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 61 [2022-12-14 07:16:58,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-12-14 07:16:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:16:58,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:18:23,764 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse93 (mod (+ c_~first~0 1) 4294967296)) (.cse92 (mod c_~first~0 4294967296))) (let ((.cse11 (<= .cse92 2147483647)) (.cse32 (<= .cse93 2147483647)) (.cse2 (select |c_#length| |c_~#buffer~0.base|))) (let ((.cse38 (+ .cse2 4294967295)) (.cse6 (+ |c_~#buffer~0.offset| .cse93)) (.cse18 (not .cse32)) (.cse14 (+ |c_~#buffer~0.offset| .cse92)) (.cse17 (not .cse11))) (or (let ((.cse7 (+ 2 |c_t1Thread1of1ForFork0_~i~0#1|))) (let ((.cse46 (mod .cse7 256))) (let ((.cse0 (<= .cse46 127))) (let ((.cse43 (not .cse0)) (.cse27 (+ |c_~#buffer~0.offset| .cse93 (- 4294967296))) (.cse8 (+ |c_~#buffer~0.offset| .cse92 (- 4294967296))) (.cse5 (+ (- 256) .cse46)) (.cse3 (mod (+ c_~next~0 1) 4294967296))) (and (or .cse0 (and (or (and (or (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse1 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (<= (+ |c_~#buffer~0.offset| .cse1 1) .cse2)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse1) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse1 2147483647) (= (select (store .cse4 (+ |c_~#buffer~0.offset| .cse1 (- 4294967296)) .cse5) .cse6) .cse7)))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse4 .cse8)))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse9 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse9) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse9 2147483647) (= (select (store .cse10 (+ |c_~#buffer~0.offset| .cse9 (- 4294967296)) .cse5) .cse6) .cse7)))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse10 .cse8))))))) .cse11) (or (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse12 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse12) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse12 2147483647) (= (select (store .cse13 (+ |c_~#buffer~0.offset| .cse12 (- 4294967296)) .cse5) .cse6) .cse7)))) (not (= (select .cse13 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse16 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse15 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (<= (+ |c_~#buffer~0.offset| .cse15 1) .cse2)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse15) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse15 2147483647) (= (select (store .cse16 (+ |c_~#buffer~0.offset| .cse15 (- 4294967296)) .cse5) .cse6) .cse7)))) (not (= (select .cse16 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)))))) .cse17)) .cse18) (or (and (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse20 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse19 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse21 (+ |c_~#buffer~0.offset| .cse20))) (or (not (= (select .cse19 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (not (< 0 .cse20)) (not (<= (+ |c_~#buffer~0.offset| .cse20 1) .cse2)) (not (<= .cse20 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (= .cse7 (select (store .cse19 .cse21 .cse5) .cse6)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse21)))))) .cse17) (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse22 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse24 (+ |c_~#buffer~0.offset| .cse22))) (or (not (< 0 .cse22)) (not (<= (+ |c_~#buffer~0.offset| .cse22 1) .cse2)) (not (<= .cse22 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse23 .cse8))) (= .cse7 (select (store .cse23 .cse24 .cse5) .cse6)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse24)))))))) .cse18) (or (and (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse28 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse25 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse26 (+ |c_~#buffer~0.offset| .cse28))) (or (= .cse7 (select (store .cse25 .cse26 .cse5) .cse27)) (not (= (select .cse25 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (not (< 0 .cse28)) (not (<= .cse28 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse26)))))) .cse17) (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse31 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse29 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse30 (+ |c_~#buffer~0.offset| .cse31))) (or (= .cse7 (select (store .cse29 .cse30 .cse5) .cse27)) (not (< 0 .cse31)) (not (<= (+ |c_~#buffer~0.offset| .cse31 1) .cse2)) (not (<= .cse31 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse29 .cse8))) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse30)))))))) .cse32) (or (and (or (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse33 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (not (= (select .cse33 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse34 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (<= (+ |c_~#buffer~0.offset| .cse34 1) .cse2)) (= .cse7 (select (store .cse33 (+ |c_~#buffer~0.offset| .cse34 (- 4294967296)) .cse5) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse34 2147483647))))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse35 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (not (= (select .cse35 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse36 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= .cse7 (select (store .cse35 (+ |c_~#buffer~0.offset| .cse36 (- 4294967296)) .cse5) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse36 2147483647)))))))) .cse17) (or .cse11 (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse39 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse40 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse37 (+ |c_~#buffer~0.offset| .cse40))) (or (not (<= .cse37 .cse38)) (= .cse7 (select (store .cse39 (+ |c_~#buffer~0.offset| .cse40 (- 4294967296)) .cse5) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< .cse37 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse40 2147483647))))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse39 .cse8)))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse42 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse41 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (<= (+ |c_~#buffer~0.offset| .cse41 1) .cse2)) (= .cse7 (select (store .cse42 (+ |c_~#buffer~0.offset| .cse41 (- 4294967296)) .cse5) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse41) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse41 2147483647)))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse42 .cse8))))))))) .cse32))) (or .cse43 (and (or .cse32 (and (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse47 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse44 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse45 (+ |c_~#buffer~0.offset| .cse47))) (or (= (select (store .cse44 .cse45 .cse46) .cse27) .cse7) (not (< 0 .cse47)) (not (<= (+ |c_~#buffer~0.offset| .cse47 1) .cse2)) (not (<= .cse47 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse44 .cse8))) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse45))))))) (or .cse17 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse50 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse48 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse49 (+ |c_~#buffer~0.offset| .cse50))) (or (not (= (select .cse48 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (= (select (store .cse48 .cse49 .cse46) .cse27) .cse7) (not (< 0 .cse50)) (not (<= .cse50 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse49))))))))) (or .cse32 (and (or (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse51 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (not (= (select .cse51 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse52 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= .cse7 (select (store .cse51 (+ |c_~#buffer~0.offset| .cse52 (- 4294967296)) .cse46) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse52 2147483647))))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse54 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse53 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (<= (+ |c_~#buffer~0.offset| .cse53 1) .cse2)) (= .cse7 (select (store .cse54 (+ |c_~#buffer~0.offset| .cse53 (- 4294967296)) .cse46) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse53 2147483647)))) (not (= (select .cse54 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)))))) .cse17) (or .cse11 (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse55 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse55 .cse8))) (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse57 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse56 (+ |c_~#buffer~0.offset| .cse57))) (or (not (<= .cse56 .cse38)) (= .cse7 (select (store .cse55 (+ |c_~#buffer~0.offset| .cse57 (- 4294967296)) .cse46) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< .cse56 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse57 2147483647)))))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse59 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse58 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (<= (+ |c_~#buffer~0.offset| .cse58 1) .cse2)) (= .cse7 (select (store .cse59 (+ |c_~#buffer~0.offset| .cse58 (- 4294967296)) .cse46) .cse27)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse58) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse58 2147483647)))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse59 .cse8)))))))))) (or (and (or .cse11 (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse60 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse61 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= (select (store .cse60 (+ |c_~#buffer~0.offset| .cse61 (- 4294967296)) .cse46) .cse6) .cse7) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse61) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse61 2147483647)))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse60 .cse8)))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse62 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse63 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= (select (store .cse62 (+ |c_~#buffer~0.offset| .cse63 (- 4294967296)) .cse46) .cse6) .cse7) (not (<= (+ |c_~#buffer~0.offset| .cse63 1) .cse2)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse63) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse63 2147483647)))) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse62 .cse8)))))))) (or .cse17 (and (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse64 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse65 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= (select (store .cse64 (+ |c_~#buffer~0.offset| .cse65 (- 4294967296)) .cse46) .cse6) .cse7) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse65) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse65 2147483647)))) (not (= (select .cse64 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|))))) (forall ((v_ArrVal_1168 (Array Int Int))) (let ((.cse66 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (forall ((aux_mod_~buffer_size~0_31 Int)) (let ((.cse67 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= (select (store .cse66 (+ |c_~#buffer~0.offset| .cse67 (- 4294967296)) .cse46) .cse6) .cse7) (not (<= (+ |c_~#buffer~0.offset| .cse67 1) .cse2)) (<= 4294967296 aux_mod_~buffer_size~0_31) (< (+ |c_~#buffer~0.offset| .cse67) 4294967296) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (<= .cse67 2147483647)))) (not (= (select .cse66 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)))))))) .cse18) (or .cse18 (and (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse70 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse68 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse69 (+ |c_~#buffer~0.offset| .cse70))) (or (= .cse7 (select (store .cse68 .cse69 .cse46) .cse6)) (not (= (select .cse68 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (not (< 0 .cse70)) (not (<= (+ |c_~#buffer~0.offset| .cse70 1) .cse2)) (not (<= .cse70 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse69)))))) .cse17) (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse73 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse71 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse72 (+ |c_~#buffer~0.offset| .cse73))) (or (= .cse7 (select (store .cse71 .cse72 .cse46) .cse6)) (not (< 0 .cse73)) (not (<= (+ |c_~#buffer~0.offset| .cse73 1) .cse2)) (not (<= .cse73 2147483647)) (<= 4294967296 aux_mod_~buffer_size~0_31) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse71 .cse8))) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (not (<= 4294967296 .cse72))))))))))) (or (and (or .cse18 (and (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse75 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296)) (.cse74 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (= .cse7 (select (store .cse74 (+ |c_~#buffer~0.offset| .cse75) .cse46) .cse6)) (not (< 0 .cse75)) (not (<= (+ |c_~#buffer~0.offset| .cse75 1) .cse2)) (not (<= .cse75 2147483647)) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse74 .cse8))) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296))))) (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse78 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse77 (+ |c_~#buffer~0.offset| .cse78)) (.cse76 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (= .cse7 (select (store .cse76 .cse77 .cse46) .cse6)) (not (<= 0 .cse77)) (not (= (select .cse76 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (not (< 0 .cse78)) (not (<= (+ |c_~#buffer~0.offset| .cse78 1) .cse2)) (not (<= .cse78 2147483647)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296))))) .cse17))) (or (and (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse80 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296)) (.cse79 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (= (select (store .cse79 (+ |c_~#buffer~0.offset| .cse80) .cse46) .cse27) .cse7) (not (< 0 .cse80)) (not (<= (+ |c_~#buffer~0.offset| .cse80 1) .cse2)) (not (<= .cse80 2147483647)) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse79 .cse8))) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296))))) (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse81 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse82 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (= (select .cse81 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (= (select (store .cse81 (+ |c_~#buffer~0.offset| .cse82) .cse46) .cse27) .cse7) (not (< 0 .cse82)) (not (<= .cse82 2147483647)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296)))) .cse17)) .cse32)) .cse43) (or .cse0 (and (or .cse32 (and (or .cse11 (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse84 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296)) (.cse83 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|))) (or (= .cse7 (select (store .cse83 (+ |c_~#buffer~0.offset| .cse84) .cse5) .cse27)) (not (< 0 .cse84)) (not (<= (+ |c_~#buffer~0.offset| .cse84 1) .cse2)) (not (<= .cse84 2147483647)) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse83 .cse8))) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296))))) (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse85 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse86 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (= .cse7 (select (store .cse85 (+ |c_~#buffer~0.offset| .cse86) .cse5) .cse27)) (not (= (select .cse85 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (not (< 0 .cse86)) (not (<= .cse86 2147483647)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296)))) .cse17))) (or (and (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse89 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (let ((.cse88 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse87 (+ |c_~#buffer~0.offset| .cse89))) (or (not (<= 0 .cse87)) (not (= (select .cse88 .cse14) |c_t1Thread1of1ForFork0_~i~0#1|)) (not (< 0 .cse89)) (not (<= (+ |c_~#buffer~0.offset| .cse89 1) .cse2)) (not (<= .cse89 2147483647)) (= .cse7 (select (store .cse88 .cse87 .cse5) .cse6)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296))))) .cse17) (or (forall ((aux_mod_~buffer_size~0_31 Int) (v_ArrVal_1168 (Array Int Int))) (let ((.cse91 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1168) |c_~#buffer~0.base|)) (.cse90 (mod (mod .cse3 (mod aux_mod_~buffer_size~0_31 4294967296)) 4294967296))) (or (not (< 0 .cse90)) (not (<= (+ |c_~#buffer~0.offset| .cse90 1) .cse2)) (not (<= .cse90 2147483647)) (not (= |c_t1Thread1of1ForFork0_~i~0#1| (select .cse91 .cse8))) (= .cse7 (select (store .cse91 (+ |c_~#buffer~0.offset| .cse90) .cse5) .cse6)) (<= aux_mod_~buffer_size~0_31 (mod (mod .cse3 aux_mod_~buffer_size~0_31) 4294967296)) (>= aux_mod_~buffer_size~0_31 4294967296)))) .cse11)) .cse18)))))))) (and .cse11 (not (<= (+ |c_~#buffer~0.offset| .cse92 1) .cse2))) (and (or (not (<= .cse6 .cse38)) .cse32) (not (<= (+ |c_~#buffer~0.offset| .cse93 1) .cse2))) (and (not (<= 4294967296 .cse6)) .cse18) (and (not (<= 4294967296 .cse14)) (or (not (<= 0 .cse14)) .cse17)))))) is different from true