./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V --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 ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:19:37,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:19:37,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:19:37,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:19:37,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:19:37,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:19:37,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:19:37,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:19:37,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:19:37,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:19:37,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:19:37,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:19:37,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:19:37,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:19:37,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:19:37,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:19:37,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:19:37,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:19:37,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:19:37,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:19:37,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:19:37,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:19:37,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:19:37,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:19:37,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:19:37,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:19:37,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:19:37,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:19:37,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:19:37,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:19:37,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:19:37,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:19:37,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:19:37,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:19:37,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:19:37,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:19:37,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:19:37,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:19:37,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:19:37,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:19:37,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:19:37,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 03:19:37,235 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:19:37,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:19:37,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:19:37,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:19:37,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:19:37,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:19:37,238 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:19:37,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:19:37,238 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:19:37,239 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:19:37,239 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:19:37,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:19:37,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:19:37,240 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:19:37,240 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:19:37,240 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:19:37,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:19:37,241 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:19:37,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:19:37,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:19:37,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:19:37,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:19:37,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:19:37,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:19:37,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:19:37,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:19:37,244 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 03:19:37,245 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 03:19:37,245 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 03:19:37,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:19:37,246 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:19:37,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:19:37,246 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:19:37,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:19:37,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:19:37,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:19:37,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:19:37,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:19:37,248 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:19:37,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:19:37,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:19:37,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:19:37,249 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 [2021-11-23 03:19:37,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:19:37,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:19:37,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:19:37,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:19:37,603 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:19:37,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2021-11-23 03:19:37,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/6970029c0/45ad165257694435a742205d54379941/FLAGef9ebcc69 [2021-11-23 03:19:38,430 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:19:38,431 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2021-11-23 03:19:38,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/6970029c0/45ad165257694435a742205d54379941/FLAGef9ebcc69 [2021-11-23 03:19:38,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/6970029c0/45ad165257694435a742205d54379941 [2021-11-23 03:19:38,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:19:38,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:19:38,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:19:38,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:19:38,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:19:38,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:19:38" (1/1) ... [2021-11-23 03:19:38,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adecbd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:38, skipping insertion in model container [2021-11-23 03:19:38,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:19:38" (1/1) ... [2021-11-23 03:19:38,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:19:38,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:19:39,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2021-11-23 03:19:39,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2021-11-23 03:19:39,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2021-11-23 03:19:39,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:19:39,576 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-23 03:19:39,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fc5ebb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:39, skipping insertion in model container [2021-11-23 03:19:39,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:19:39,578 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-23 03:19:39,580 INFO L158 Benchmark]: Toolchain (without parser) took 968.86ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 52.6MB in the beginning and 77.5MB in the end (delta: -24.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-23 03:19:39,587 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:19:39,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 965.35ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 52.4MB in the beginning and 77.5MB in the end (delta: -25.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-23 03:19:39,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 965.35ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 52.4MB in the beginning and 77.5MB in the end (delta: -25.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V --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 ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:19:42,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:19:42,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:19:42,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:19:42,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:19:42,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:19:42,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:19:42,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:19:42,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:19:42,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:19:42,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:19:42,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:19:42,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:19:42,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:19:42,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:19:42,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:19:42,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:19:42,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:19:42,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:19:42,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:19:42,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:19:42,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:19:42,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:19:42,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:19:42,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:19:42,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:19:42,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:19:42,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:19:42,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:19:42,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:19:42,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:19:42,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:19:42,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:19:42,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:19:42,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:19:42,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:19:42,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:19:42,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:19:42,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:19:42,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:19:42,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:19:42,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-23 03:19:42,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:19:42,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:19:42,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:19:42,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:19:42,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:19:42,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:19:42,611 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:19:42,611 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:19:42,612 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:19:42,612 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:19:42,613 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:19:42,614 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:19:42,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:19:42,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:19:42,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:19:42,617 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:19:42,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:19:42,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:19:42,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:19:42,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:19:42,618 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 03:19:42,619 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 03:19:42,619 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 03:19:42,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:19:42,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:19:42,620 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 03:19:42,620 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 03:19:42,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:19:42,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:19:42,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:19:42,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:19:42,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:19:42,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:19:42,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:19:42,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:19:42,623 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 03:19:42,624 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 03:19:42,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:19:42,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:19:42,625 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 [2021-11-23 03:19:43,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:19:43,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:19:43,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:19:43,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:19:43,220 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:19:43,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2021-11-23 03:19:43,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/20ba75ecf/af5db1420ed24055adf3f166a6ea0a46/FLAG1a1293671 [2021-11-23 03:19:44,166 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:19:44,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2021-11-23 03:19:44,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/20ba75ecf/af5db1420ed24055adf3f166a6ea0a46/FLAG1a1293671 [2021-11-23 03:19:44,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/data/20ba75ecf/af5db1420ed24055adf3f166a6ea0a46 [2021-11-23 03:19:44,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:19:44,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:19:44,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:19:44,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:19:44,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:19:44,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:19:44" (1/1) ... [2021-11-23 03:19:44,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a314b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:44, skipping insertion in model container [2021-11-23 03:19:44,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:19:44" (1/1) ... [2021-11-23 03:19:44,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:19:44,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:19:45,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2021-11-23 03:19:45,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2021-11-23 03:19:45,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2021-11-23 03:19:45,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:19:45,360 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 03:19:45,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:19:45,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2021-11-23 03:19:45,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2021-11-23 03:19:45,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2021-11-23 03:19:45,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:19:45,594 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:19:45,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2021-11-23 03:19:45,753 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2021-11-23 03:19:45,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2021-11-23 03:19:45,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:19:45,839 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:19:45,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45 WrapperNode [2021-11-23 03:19:45,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:19:45,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:19:45,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:19:45,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:19:45,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:45,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,005 INFO L137 Inliner]: procedures = 179, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1175 [2021-11-23 03:19:46,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:19:46,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:19:46,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:19:46,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:19:46,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:19:46,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:19:46,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:19:46,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:19:46,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (1/1) ... [2021-11-23 03:19:46,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:19:46,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:19:46,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:19:46,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:19:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 03:19:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 03:19:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:19:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:19:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:19:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:19:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:19:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:19:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:19:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:19:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:19:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 03:19:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 03:19:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:19:46,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:19:46,623 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:19:46,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:19:46,628 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-23 03:19:53,440 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:19:53,474 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:19:53,476 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 03:19:53,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:19:53 BoogieIcfgContainer [2021-11-23 03:19:53,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:19:53,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:19:53,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:19:53,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:19:53,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:19:44" (1/3) ... [2021-11-23 03:19:53,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13826ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:19:53, skipping insertion in model container [2021-11-23 03:19:53,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:19:45" (2/3) ... [2021-11-23 03:19:53,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13826ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:19:53, skipping insertion in model container [2021-11-23 03:19:53,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:19:53" (3/3) ... [2021-11-23 03:19:53,493 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test7-2.i [2021-11-23 03:19:53,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:19:53,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 635 error locations. [2021-11-23 03:19:53,565 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:19:53,573 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:19:53,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 635 error locations. [2021-11-23 03:19:53,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 1249 states, 612 states have (on average 2.2663398692810457) internal successors, (1387), 1244 states have internal predecessors, (1387), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:19:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 03:19:53,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:19:53,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 03:19:53,649 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:19:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:19:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2021-11-23 03:19:53,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:19:53,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198936456] [2021-11-23 03:19:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:19:53,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:19:53,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:19:53,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:19:53,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 03:19:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:19:53,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:19:53,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:19:53,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:19:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:19:53,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:19:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:19:53,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:19:53,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198936456] [2021-11-23 03:19:53,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198936456] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:19:53,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:19:53,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 03:19:53,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351867682] [2021-11-23 03:19:53,943 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:19:53,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:19:53,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:19:53,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:19:53,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:19:53,983 INFO L87 Difference]: Start difference. First operand has 1249 states, 612 states have (on average 2.2663398692810457) internal successors, (1387), 1244 states have internal predecessors, (1387), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:19:56,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:19:56,547 INFO L93 Difference]: Finished difference Result 1417 states and 1492 transitions. [2021-11-23 03:19:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:19:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-23 03:19:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:19:56,594 INFO L225 Difference]: With dead ends: 1417 [2021-11-23 03:19:56,594 INFO L226 Difference]: Without dead ends: 1415 [2021-11-23 03:19:56,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:19:56,603 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 1160 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:19:56,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 893 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 03:19:56,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2021-11-23 03:19:56,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1230. [2021-11-23 03:19:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 610 states have (on average 2.1163934426229507) internal successors, (1291), 1225 states have internal predecessors, (1291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:19:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1297 transitions. [2021-11-23 03:19:56,754 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1297 transitions. Word has length 3 [2021-11-23 03:19:56,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:19:56,755 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1297 transitions. [2021-11-23 03:19:56,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:19:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1297 transitions. [2021-11-23 03:19:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 03:19:56,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:19:56,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 03:19:56,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:19:56,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:19:56,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:19:56,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:19:56,970 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2021-11-23 03:19:56,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:19:56,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264793676] [2021-11-23 03:19:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:19:56,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:19:56,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:19:56,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:19:57,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 03:19:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:19:57,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:19:57,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:19:57,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:19:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:19:57,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:19:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:19:57,203 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:19:57,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264793676] [2021-11-23 03:19:57,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264793676] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:19:57,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:19:57,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-23 03:19:57,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736738273] [2021-11-23 03:19:57,204 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:19:57,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:19:57,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:19:57,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:19:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:19:57,207 INFO L87 Difference]: Start difference. First operand 1230 states and 1297 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-23 03:20:03,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:03,270 INFO L93 Difference]: Finished difference Result 1894 states and 2004 transitions. [2021-11-23 03:20:03,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:03,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 3 [2021-11-23 03:20:03,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:03,283 INFO L225 Difference]: With dead ends: 1894 [2021-11-23 03:20:03,283 INFO L226 Difference]: Without dead ends: 1894 [2021-11-23 03:20:03,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:03,285 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 1545 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:03,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1545 Valid, 1760 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-23 03:20:03,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2021-11-23 03:20:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1265. [2021-11-23 03:20:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 654 states have (on average 2.09480122324159) internal successors, (1370), 1260 states have internal predecessors, (1370), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:03,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1376 transitions. [2021-11-23 03:20:03,329 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1376 transitions. Word has length 3 [2021-11-23 03:20:03,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:03,329 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 1376 transitions. [2021-11-23 03:20:03,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-23 03:20:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1376 transitions. [2021-11-23 03:20:03,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:20:03,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:03,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:03,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:03,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:03,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:03,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2021-11-23 03:20:03,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:03,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339637697] [2021-11-23 03:20:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:03,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:03,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:03,551 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:03,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 03:20:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:03,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:20:03,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:03,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:03,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:03,766 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:03,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339637697] [2021-11-23 03:20:03,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339637697] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:03,768 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:03,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 03:20:03,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066280148] [2021-11-23 03:20:03,769 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:03,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:20:03,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:03,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:20:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:20:03,773 INFO L87 Difference]: Start difference. First operand 1265 states and 1376 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2021-11-23 03:20:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:06,467 INFO L93 Difference]: Finished difference Result 1595 states and 1731 transitions. [2021-11-23 03:20:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:20:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2021-11-23 03:20:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:06,479 INFO L225 Difference]: With dead ends: 1595 [2021-11-23 03:20:06,479 INFO L226 Difference]: Without dead ends: 1595 [2021-11-23 03:20:06,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:20:06,485 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 975 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:06,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1479 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 03:20:06,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2021-11-23 03:20:06,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1218. [2021-11-23 03:20:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 654 states have (on average 2.018348623853211) internal successors, (1320), 1213 states have internal predecessors, (1320), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1326 transitions. [2021-11-23 03:20:06,525 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1326 transitions. Word has length 8 [2021-11-23 03:20:06,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:06,525 INFO L470 AbstractCegarLoop]: Abstraction has 1218 states and 1326 transitions. [2021-11-23 03:20:06,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2021-11-23 03:20:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1326 transitions. [2021-11-23 03:20:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:20:06,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:06,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:06,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:06,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:06,746 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2021-11-23 03:20:06,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:06,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923414507] [2021-11-23 03:20:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:06,748 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:06,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:06,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:06,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 03:20:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:06,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:06,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:06,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:06,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:07,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:07,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923414507] [2021-11-23 03:20:07,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923414507] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:07,034 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:07,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-23 03:20:07,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402054281] [2021-11-23 03:20:07,034 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:07,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:20:07,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:07,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:20:07,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:07,035 INFO L87 Difference]: Start difference. First operand 1218 states and 1326 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2021-11-23 03:20:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:11,801 INFO L93 Difference]: Finished difference Result 1639 states and 1739 transitions. [2021-11-23 03:20:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:11,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 8 [2021-11-23 03:20:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:11,812 INFO L225 Difference]: With dead ends: 1639 [2021-11-23 03:20:11,812 INFO L226 Difference]: Without dead ends: 1639 [2021-11-23 03:20:11,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:11,814 INFO L933 BasicCegarLoop]: 1309 mSDtfsCounter, 1392 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:11,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 1824 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-23 03:20:11,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2021-11-23 03:20:11,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1208. [2021-11-23 03:20:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 654 states have (on average 1.9984709480122325) internal successors, (1307), 1203 states have internal predecessors, (1307), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1313 transitions. [2021-11-23 03:20:11,851 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1313 transitions. Word has length 8 [2021-11-23 03:20:11,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:11,852 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1313 transitions. [2021-11-23 03:20:11,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2021-11-23 03:20:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1313 transitions. [2021-11-23 03:20:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:20:11,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:11,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:11,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:12,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:12,066 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr526ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:12,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:12,067 INFO L85 PathProgramCache]: Analyzing trace with hash 871378613, now seen corresponding path program 1 times [2021-11-23 03:20:12,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:12,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557301767] [2021-11-23 03:20:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:12,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:12,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:12,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 03:20:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:12,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:20:12,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:12,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:12,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:12,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557301767] [2021-11-23 03:20:12,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557301767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:12,428 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:12,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 03:20:12,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571076990] [2021-11-23 03:20:12,428 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:12,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:20:12,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:12,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:20:12,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:12,430 INFO L87 Difference]: Start difference. First operand 1208 states and 1313 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:13,527 INFO L93 Difference]: Finished difference Result 1851 states and 1998 transitions. [2021-11-23 03:20:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:20:13,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-23 03:20:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:13,537 INFO L225 Difference]: With dead ends: 1851 [2021-11-23 03:20:13,538 INFO L226 Difference]: Without dead ends: 1851 [2021-11-23 03:20:13,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:20:13,539 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 754 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:13,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 3651 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 03:20:13,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2021-11-23 03:20:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1449. [2021-11-23 03:20:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 895 states have (on average 1.9687150837988827) internal successors, (1762), 1444 states have internal predecessors, (1762), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1768 transitions. [2021-11-23 03:20:13,581 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1768 transitions. Word has length 11 [2021-11-23 03:20:13,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:13,582 INFO L470 AbstractCegarLoop]: Abstraction has 1449 states and 1768 transitions. [2021-11-23 03:20:13,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:13,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1768 transitions. [2021-11-23 03:20:13,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:20:13,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:13,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:13,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:13,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:13,795 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -702153283, now seen corresponding path program 1 times [2021-11-23 03:20:13,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:13,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252985123] [2021-11-23 03:20:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:13,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:13,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:13,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:13,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 03:20:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:13,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:20:13,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:13,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:13,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:13,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252985123] [2021-11-23 03:20:13,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252985123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:13,999 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:13,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 03:20:13,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432470865] [2021-11-23 03:20:13,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:13,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:20:13,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:14,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:20:14,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:14,000 INFO L87 Difference]: Start difference. First operand 1449 states and 1768 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:14,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:14,042 INFO L93 Difference]: Finished difference Result 1611 states and 1916 transitions. [2021-11-23 03:20:14,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:20:14,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 03:20:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:14,051 INFO L225 Difference]: With dead ends: 1611 [2021-11-23 03:20:14,051 INFO L226 Difference]: Without dead ends: 1611 [2021-11-23 03:20:14,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:14,052 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 583 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:14,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 2820 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:20:14,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2021-11-23 03:20:14,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1389. [2021-11-23 03:20:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 859 states have (on average 1.951105937136205) internal successors, (1676), 1384 states have internal predecessors, (1676), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1682 transitions. [2021-11-23 03:20:14,088 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1682 transitions. Word has length 13 [2021-11-23 03:20:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:14,088 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 1682 transitions. [2021-11-23 03:20:14,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1682 transitions. [2021-11-23 03:20:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 03:20:14,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:14,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:14,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:14,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:14,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:14,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:14,302 INFO L85 PathProgramCache]: Analyzing trace with hash -459414345, now seen corresponding path program 1 times [2021-11-23 03:20:14,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:14,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036182420] [2021-11-23 03:20:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:14,303 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:14,304 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:14,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 03:20:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:14,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:14,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:14,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:14,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:14,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036182420] [2021-11-23 03:20:14,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036182420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:14,526 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:14,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 03:20:14,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529411731] [2021-11-23 03:20:14,527 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:14,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:20:14,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:14,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:20:14,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:20:14,528 INFO L87 Difference]: Start difference. First operand 1389 states and 1682 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:14,625 INFO L93 Difference]: Finished difference Result 1583 states and 1860 transitions. [2021-11-23 03:20:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 03:20:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:14,632 INFO L225 Difference]: With dead ends: 1583 [2021-11-23 03:20:14,632 INFO L226 Difference]: Without dead ends: 1583 [2021-11-23 03:20:14,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:20:14,633 INFO L933 BasicCegarLoop]: 1139 mSDtfsCounter, 554 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:14,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [554 Valid, 3907 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:20:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2021-11-23 03:20:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1359. [2021-11-23 03:20:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 843 states have (on average 1.9193357058125742) internal successors, (1618), 1354 states have internal predecessors, (1618), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1624 transitions. [2021-11-23 03:20:14,672 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1624 transitions. Word has length 15 [2021-11-23 03:20:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:14,673 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 1624 transitions. [2021-11-23 03:20:14,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1624 transitions. [2021-11-23 03:20:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:20:14,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:14,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:14,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:14,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:14,890 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr634ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:14,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:14,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2058395604, now seen corresponding path program 1 times [2021-11-23 03:20:14,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:14,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823949818] [2021-11-23 03:20:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:14,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:14,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:14,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 03:20:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:15,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:15,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:15,051 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:20:15,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:20:15,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:20:15,130 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-23 03:20:15,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-23 03:20:15,197 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-23 03:20:15,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-23 03:20:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:15,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:15,310 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:15,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823949818] [2021-11-23 03:20:15,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823949818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:15,310 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:15,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 03:20:15,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344183581] [2021-11-23 03:20:15,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:15,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:20:15,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:20:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:20:15,311 INFO L87 Difference]: Start difference. First operand 1359 states and 1624 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:17,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:17,612 INFO L93 Difference]: Finished difference Result 1795 states and 2119 transitions. [2021-11-23 03:20:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:17,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 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 [2021-11-23 03:20:17,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:17,620 INFO L225 Difference]: With dead ends: 1795 [2021-11-23 03:20:17,620 INFO L226 Difference]: Without dead ends: 1795 [2021-11-23 03:20:17,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:20:17,625 INFO L933 BasicCegarLoop]: 1108 mSDtfsCounter, 424 mSDsluCounter, 4204 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:17,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 5312 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 03:20:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-23 03:20:17,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1358. [2021-11-23 03:20:17,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 842 states have (on average 1.9192399049881235) internal successors, (1616), 1353 states have internal predecessors, (1616), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1622 transitions. [2021-11-23 03:20:17,659 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1622 transitions. Word has length 16 [2021-11-23 03:20:17,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:17,659 INFO L470 AbstractCegarLoop]: Abstraction has 1358 states and 1622 transitions. [2021-11-23 03:20:17,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1622 transitions. [2021-11-23 03:20:17,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 03:20:17,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:17,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:17,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:17,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:17,883 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash -344619170, now seen corresponding path program 1 times [2021-11-23 03:20:17,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:17,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637371686] [2021-11-23 03:20:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:17,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:17,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:17,885 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:17,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 03:20:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:18,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 03:20:18,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:18,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:18,082 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:18,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637371686] [2021-11-23 03:20:18,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637371686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:18,082 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:18,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 03:20:18,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552239642] [2021-11-23 03:20:18,083 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:18,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:20:18,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:18,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:20:18,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:18,084 INFO L87 Difference]: Start difference. First operand 1358 states and 1622 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:18,120 INFO L93 Difference]: Finished difference Result 1298 states and 1536 transitions. [2021-11-23 03:20:18,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:20:18,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-23 03:20:18,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:18,126 INFO L225 Difference]: With dead ends: 1298 [2021-11-23 03:20:18,126 INFO L226 Difference]: Without dead ends: 1298 [2021-11-23 03:20:18,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:18,127 INFO L933 BasicCegarLoop]: 1105 mSDtfsCounter, 2178 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:18,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2181 Valid, 1127 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:20:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2021-11-23 03:20:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1298. [2021-11-23 03:20:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 806 states have (on average 1.8982630272952854) internal successors, (1530), 1293 states have internal predecessors, (1530), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1536 transitions. [2021-11-23 03:20:18,169 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1536 transitions. Word has length 18 [2021-11-23 03:20:18,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:18,169 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 1536 transitions. [2021-11-23 03:20:18,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1536 transitions. [2021-11-23 03:20:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:20:18,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:18,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:18,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:18,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:18,384 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:18,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:18,385 INFO L85 PathProgramCache]: Analyzing trace with hash -466544200, now seen corresponding path program 1 times [2021-11-23 03:20:18,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:18,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510771635] [2021-11-23 03:20:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:18,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:18,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:18,386 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:18,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 03:20:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:18,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:18,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:18,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:18,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:18,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:18,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510771635] [2021-11-23 03:20:18,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510771635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:18,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:18,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 03:20:18,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769055210] [2021-11-23 03:20:18,603 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:18,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:20:18,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:18,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:20:18,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:20:18,604 INFO L87 Difference]: Start difference. First operand 1298 states and 1536 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:18,687 INFO L93 Difference]: Finished difference Result 1270 states and 1480 transitions. [2021-11-23 03:20:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 20 [2021-11-23 03:20:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:18,695 INFO L225 Difference]: With dead ends: 1270 [2021-11-23 03:20:18,695 INFO L226 Difference]: Without dead ends: 1270 [2021-11-23 03:20:18,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:20:18,697 INFO L933 BasicCegarLoop]: 1060 mSDtfsCounter, 2110 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:18,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2113 Valid, 2135 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:20:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2021-11-23 03:20:18,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1268. [2021-11-23 03:20:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 790 states have (on average 1.8632911392405063) internal successors, (1472), 1263 states have internal predecessors, (1472), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1478 transitions. [2021-11-23 03:20:18,724 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1478 transitions. Word has length 20 [2021-11-23 03:20:18,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:18,726 INFO L470 AbstractCegarLoop]: Abstraction has 1268 states and 1478 transitions. [2021-11-23 03:20:18,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1478 transitions. [2021-11-23 03:20:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:20:18,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:18,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:18,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:18,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:18,950 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:18,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:18,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531686, now seen corresponding path program 1 times [2021-11-23 03:20:18,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:18,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375466531] [2021-11-23 03:20:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:18,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:18,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:18,953 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:18,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 03:20:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:19,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:19,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:19,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:19,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:19,410 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:19,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375466531] [2021-11-23 03:20:19,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375466531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:19,411 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:19,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 03:20:19,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98677972] [2021-11-23 03:20:19,411 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:19,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:20:19,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:20:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:19,412 INFO L87 Difference]: Start difference. First operand 1268 states and 1478 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:22,246 INFO L93 Difference]: Finished difference Result 1850 states and 2182 transitions. [2021-11-23 03:20:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:20:22,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2021-11-23 03:20:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:22,260 INFO L225 Difference]: With dead ends: 1850 [2021-11-23 03:20:22,260 INFO L226 Difference]: Without dead ends: 1850 [2021-11-23 03:20:22,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:20:22,261 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1719 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:22,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1719 Valid, 1222 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 03:20:22,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-23 03:20:22,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1264. [2021-11-23 03:20:22,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 790 states have (on average 1.8531645569620254) internal successors, (1464), 1259 states have internal predecessors, (1464), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1470 transitions. [2021-11-23 03:20:22,286 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1470 transitions. Word has length 34 [2021-11-23 03:20:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:22,287 INFO L470 AbstractCegarLoop]: Abstraction has 1264 states and 1470 transitions. [2021-11-23 03:20:22,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1470 transitions. [2021-11-23 03:20:22,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:20:22,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:22,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:22,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:22,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:22,500 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531687, now seen corresponding path program 1 times [2021-11-23 03:20:22,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187053799] [2021-11-23 03:20:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:22,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:22,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:22,502 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:22,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 03:20:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:22,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:20:22,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:22,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:22,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:22,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:23,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:23,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187053799] [2021-11-23 03:20:23,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187053799] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:23,443 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:23,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 03:20:23,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994599599] [2021-11-23 03:20:23,443 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:23,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:20:23,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:23,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:20:23,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:20:23,444 INFO L87 Difference]: Start difference. First operand 1264 states and 1470 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:31,202 INFO L93 Difference]: Finished difference Result 1977 states and 2286 transitions. [2021-11-23 03:20:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:20:31,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 34 [2021-11-23 03:20:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:31,212 INFO L225 Difference]: With dead ends: 1977 [2021-11-23 03:20:31,213 INFO L226 Difference]: Without dead ends: 1977 [2021-11-23 03:20:31,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:20:31,214 INFO L933 BasicCegarLoop]: 1357 mSDtfsCounter, 2009 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:31,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2009 Valid, 3001 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-11-23 03:20:31,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2021-11-23 03:20:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1260. [2021-11-23 03:20:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 790 states have (on average 1.8430379746835444) internal successors, (1456), 1255 states have internal predecessors, (1456), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1462 transitions. [2021-11-23 03:20:31,238 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1462 transitions. Word has length 34 [2021-11-23 03:20:31,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:31,239 INFO L470 AbstractCegarLoop]: Abstraction has 1260 states and 1462 transitions. [2021-11-23 03:20:31,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1462 transitions. [2021-11-23 03:20:31,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 03:20:31,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:31,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:31,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:31,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:31,453 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:31,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1509555205, now seen corresponding path program 1 times [2021-11-23 03:20:31,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:31,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748160345] [2021-11-23 03:20:31,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:31,454 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:31,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:31,455 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:31,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 03:20:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:31,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:31,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:31,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:31,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:31,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748160345] [2021-11-23 03:20:31,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748160345] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:31,890 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:31,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 03:20:31,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688126072] [2021-11-23 03:20:31,891 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:31,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:20:31,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:20:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:20:31,892 INFO L87 Difference]: Start difference. First operand 1260 states and 1462 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:31,958 INFO L93 Difference]: Finished difference Result 1248 states and 1442 transitions. [2021-11-23 03:20:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:31,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-11-23 03:20:31,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:31,965 INFO L225 Difference]: With dead ends: 1248 [2021-11-23 03:20:31,965 INFO L226 Difference]: Without dead ends: 1248 [2021-11-23 03:20:31,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:20:31,967 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 1036 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:31,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 2113 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:20:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2021-11-23 03:20:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2021-11-23 03:20:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 778 states have (on average 1.845758354755784) internal successors, (1436), 1243 states have internal predecessors, (1436), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1442 transitions. [2021-11-23 03:20:31,986 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1442 transitions. Word has length 52 [2021-11-23 03:20:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:31,986 INFO L470 AbstractCegarLoop]: Abstraction has 1248 states and 1442 transitions. [2021-11-23 03:20:31,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:31,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1442 transitions. [2021-11-23 03:20:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 03:20:31,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:31,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:32,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:32,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:32,200 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:32,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:32,200 INFO L85 PathProgramCache]: Analyzing trace with hash -881686959, now seen corresponding path program 1 times [2021-11-23 03:20:32,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:32,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141922340] [2021-11-23 03:20:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:32,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:32,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:32,202 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:32,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 03:20:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:32,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 03:20:32,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:32,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:32,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:33,140 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 03:20:33,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-23 03:20:33,166 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 03:20:33,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 03:20:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:33,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:38,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:38,355 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:38,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141922340] [2021-11-23 03:20:38,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141922340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:38,356 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:38,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 03:20:38,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629557824] [2021-11-23 03:20:38,357 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:38,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:20:38,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:20:38,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-23 03:20:38,358 INFO L87 Difference]: Start difference. First operand 1248 states and 1442 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:44,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:44,492 INFO L93 Difference]: Finished difference Result 1795 states and 2079 transitions. [2021-11-23 03:20:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:20:44,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 60 [2021-11-23 03:20:44,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:44,500 INFO L225 Difference]: With dead ends: 1795 [2021-11-23 03:20:44,500 INFO L226 Difference]: Without dead ends: 1795 [2021-11-23 03:20:44,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-23 03:20:44,500 INFO L933 BasicCegarLoop]: 830 mSDtfsCounter, 1326 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 3195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1580 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:44,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 2161 Invalid, 3195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1574 Invalid, 0 Unknown, 1580 Unchecked, 6.0s Time] [2021-11-23 03:20:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2021-11-23 03:20:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1226. [2021-11-23 03:20:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 788 states have (on average 1.8045685279187818) internal successors, (1422), 1221 states have internal predecessors, (1422), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1428 transitions. [2021-11-23 03:20:44,526 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1428 transitions. Word has length 60 [2021-11-23 03:20:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:44,526 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 1428 transitions. [2021-11-23 03:20:44,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:44,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1428 transitions. [2021-11-23 03:20:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 03:20:44,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:44,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:44,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-23 03:20:44,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:44,741 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:44,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:44,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1192602638, now seen corresponding path program 1 times [2021-11-23 03:20:44,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:44,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405484274] [2021-11-23 03:20:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:44,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:44,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:44,744 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:44,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 03:20:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:44,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:20:45,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:45,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:45,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 6 [2021-11-23 03:20:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:45,601 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:45,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405484274] [2021-11-23 03:20:45,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405484274] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:45,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:45,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 03:20:45,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105796600] [2021-11-23 03:20:45,603 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:45,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:20:45,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:45,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:20:45,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:20:45,604 INFO L87 Difference]: Start difference. First operand 1226 states and 1428 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:48,384 INFO L93 Difference]: Finished difference Result 1224 states and 1426 transitions. [2021-11-23 03:20:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:20:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 62 [2021-11-23 03:20:48,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:48,405 INFO L225 Difference]: With dead ends: 1224 [2021-11-23 03:20:48,405 INFO L226 Difference]: Without dead ends: 1224 [2021-11-23 03:20:48,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:20:48,409 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 813 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:48,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 1092 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 03:20:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-11-23 03:20:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2021-11-23 03:20:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 788 states have (on average 1.8020304568527918) internal successors, (1420), 1219 states have internal predecessors, (1420), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1426 transitions. [2021-11-23 03:20:48,431 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1426 transitions. Word has length 62 [2021-11-23 03:20:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:48,432 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1426 transitions. [2021-11-23 03:20:48,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1426 transitions. [2021-11-23 03:20:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 03:20:48,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:48,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:48,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:48,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:48,652 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash -855470841, now seen corresponding path program 1 times [2021-11-23 03:20:48,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:48,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918865369] [2021-11-23 03:20:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:48,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:48,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:48,655 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:48,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 03:20:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:48,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:20:48,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:49,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:49,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 18 [2021-11-23 03:20:49,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 [2021-11-23 03:20:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:49,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:49,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:49,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918865369] [2021-11-23 03:20:49,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918865369] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:49,234 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:49,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 03:20:49,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312333325] [2021-11-23 03:20:49,235 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:49,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:20:49,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:49,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:20:49,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:20:49,236 INFO L87 Difference]: Start difference. First operand 1224 states and 1426 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:52,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:20:52,666 INFO L93 Difference]: Finished difference Result 1223 states and 1425 transitions. [2021-11-23 03:20:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:20:52,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-23 03:20:52,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:20:52,671 INFO L225 Difference]: With dead ends: 1223 [2021-11-23 03:20:52,671 INFO L226 Difference]: Without dead ends: 1223 [2021-11-23 03:20:52,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:20:52,672 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 4 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:20:52,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2584 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 03:20:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-23 03:20:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2021-11-23 03:20:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 788 states have (on average 1.8007614213197969) internal successors, (1419), 1218 states have internal predecessors, (1419), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:20:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1425 transitions. [2021-11-23 03:20:52,690 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1425 transitions. Word has length 65 [2021-11-23 03:20:52,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:20:52,691 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1425 transitions. [2021-11-23 03:20:52,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:20:52,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1425 transitions. [2021-11-23 03:20:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 03:20:52,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:20:52,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:20:52,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-23 03:20:52,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:20:52,901 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:20:52,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:20:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -855470840, now seen corresponding path program 1 times [2021-11-23 03:20:52,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:20:52,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446111237] [2021-11-23 03:20:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:20:52,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:20:52,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:20:52,902 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:20:52,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-23 03:20:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:20:53,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:20:53,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:20:53,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:20:53,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2021-11-23 03:20:53,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2021-11-23 03:20:53,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 27 [2021-11-23 03:20:53,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 12 [2021-11-23 03:20:53,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:53,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:20:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:20:53,637 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:20:53,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446111237] [2021-11-23 03:20:53,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446111237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:20:53,637 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:20:53,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-23 03:20:53,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232374262] [2021-11-23 03:20:53,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:20:53,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:20:53,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:20:53,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:20:53,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:20:53,639 INFO L87 Difference]: Start difference. First operand 1223 states and 1425 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:21:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:21:05,550 INFO L93 Difference]: Finished difference Result 1222 states and 1424 transitions. [2021-11-23 03:21:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:21:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 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 65 [2021-11-23 03:21:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:21:05,556 INFO L225 Difference]: With dead ends: 1222 [2021-11-23 03:21:05,557 INFO L226 Difference]: Without dead ends: 1222 [2021-11-23 03:21:05,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:21:05,558 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 3 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:21:05,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3713 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2400 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2021-11-23 03:21:05,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-23 03:21:05,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-11-23 03:21:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 787 states have (on average 1.8017789072426937) internal successors, (1418), 1217 states have internal predecessors, (1418), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:21:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1424 transitions. [2021-11-23 03:21:05,582 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1424 transitions. Word has length 65 [2021-11-23 03:21:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:21:05,582 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1424 transitions. [2021-11-23 03:21:05,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:21:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1424 transitions. [2021-11-23 03:21:05,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 03:21:05,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:21:05,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:21:05,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-23 03:21:05,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:21:05,800 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:21:05,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:21:05,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1088613615, now seen corresponding path program 1 times [2021-11-23 03:21:05,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:21:05,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028224257] [2021-11-23 03:21:05,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:21:05,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:21:05,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:21:05,803 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:21:05,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-23 03:21:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:21:06,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:21:06,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:06,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:21:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:06,486 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:21:06,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028224257] [2021-11-23 03:21:06,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028224257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:21:06,486 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:21:06,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 03:21:06,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968513689] [2021-11-23 03:21:06,487 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:21:06,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:21:06,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:21:06,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:21:06,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:21:06,488 INFO L87 Difference]: Start difference. First operand 1222 states and 1424 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:21:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:21:06,612 INFO L93 Difference]: Finished difference Result 1232 states and 1437 transitions. [2021-11-23 03:21:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:21:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-23 03:21:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:21:06,624 INFO L225 Difference]: With dead ends: 1232 [2021-11-23 03:21:06,624 INFO L226 Difference]: Without dead ends: 1232 [2021-11-23 03:21:06,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:21:06,625 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 11 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:21:06,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 3048 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:21:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2021-11-23 03:21:06,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1232. [2021-11-23 03:21:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 795 states have (on average 1.79874213836478) internal successors, (1430), 1226 states have internal predecessors, (1430), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 03:21:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1437 transitions. [2021-11-23 03:21:06,651 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1437 transitions. Word has length 73 [2021-11-23 03:21:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:21:06,652 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1437 transitions. [2021-11-23 03:21:06,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:21:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1437 transitions. [2021-11-23 03:21:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 03:21:06,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:21:06,653 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:21:06,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-23 03:21:06,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:21:06,869 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:21:06,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:21:06,870 INFO L85 PathProgramCache]: Analyzing trace with hash 973507983, now seen corresponding path program 1 times [2021-11-23 03:21:06,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:21:06,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494080993] [2021-11-23 03:21:06,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:21:06,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:21:06,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:21:06,872 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:21:06,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-23 03:21:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:21:07,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:21:07,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:07,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:07,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:21:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:07,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:21:07,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494080993] [2021-11-23 03:21:07,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494080993] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:21:07,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1618968682] [2021-11-23 03:21:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:21:07,577 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 03:21:07,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 03:21:07,591 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 03:21:07,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-23 03:21:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:21:08,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:21:08,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:08,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:21:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:08,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1618968682] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:21:08,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560047356] [2021-11-23 03:21:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:21:08,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:21:08,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:21:08,430 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:21:08,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-23 03:21:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:21:08,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 03:21:08,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:08,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:21:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:09,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560047356] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:21:09,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 03:21:09,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-23 03:21:09,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638728930] [2021-11-23 03:21:09,124 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 03:21:09,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 03:21:09,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:21:09,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 03:21:09,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:21:09,128 INFO L87 Difference]: Start difference. First operand 1232 states and 1437 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 03:21:09,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:21:09,734 INFO L93 Difference]: Finished difference Result 1246 states and 1454 transitions. [2021-11-23 03:21:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 03:21:09,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-23 03:21:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:21:09,746 INFO L225 Difference]: With dead ends: 1246 [2021-11-23 03:21:09,746 INFO L226 Difference]: Without dead ends: 1240 [2021-11-23 03:21:09,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-23 03:21:09,747 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 40 mSDsluCounter, 5075 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 6094 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:21:09,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 6094 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:21:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2021-11-23 03:21:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1238. [2021-11-23 03:21:09,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 801 states have (on average 1.794007490636704) internal successors, (1437), 1232 states have internal predecessors, (1437), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 03:21:09,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1444 transitions. [2021-11-23 03:21:09,785 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1444 transitions. Word has length 75 [2021-11-23 03:21:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:21:09,785 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 1444 transitions. [2021-11-23 03:21:09,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 03:21:09,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1444 transitions. [2021-11-23 03:21:09,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 03:21:09,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:21:09,787 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:21:09,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-23 03:21:10,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-23 03:21:10,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-23 03:21:10,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt [2021-11-23 03:21:10,404 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:21:10,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:21:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1648945, now seen corresponding path program 2 times [2021-11-23 03:21:10,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:21:10,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309886740] [2021-11-23 03:21:10,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 03:21:10,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:21:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:21:10,406 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:21:10,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-23 03:21:10,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 03:21:10,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:21:10,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 03:21:10,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:11,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:21:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:11,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:21:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309886740] [2021-11-23 03:21:11,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309886740] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:21:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [923083059] [2021-11-23 03:21:11,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 03:21:11,678 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 03:21:11,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 03:21:11,680 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 03:21:11,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-23 03:21:12,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 03:21:12,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:21:12,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 03:21:12,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:12,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:21:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:21:12,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [923083059] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:21:12,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759713275] [2021-11-23 03:21:12,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 03:21:12,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:21:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:21:12,985 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:21:13,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-23 03:21:39,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 03:21:39,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:21:39,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 03:21:39,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:21:39,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:21:39,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-23 03:21:39,819 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 03:21:39,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-11-23 03:21:39,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2021-11-23 03:21:39,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 19 [2021-11-23 03:21:40,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 19 [2021-11-23 03:21:40,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 13 [2021-11-23 03:23:42,285 WARN L227 SmtUtils]: Spent 19.93s on a formula simplification. DAG size of input: 114 DAG size of output: 40 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:23:42,286 INFO L354 Elim1Store]: treesize reduction 876, result has 6.7 percent of original size [2021-11-23 03:23:42,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 143 [2021-11-23 03:24:18,146 WARN L227 SmtUtils]: Spent 35.84s on a formula simplification. DAG size of input: 118 DAG size of output: 40 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:24:18,146 INFO L354 Elim1Store]: treesize reduction 1174, result has 7.8 percent of original size [2021-11-23 03:24:18,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 191 treesize of output 238 [2021-11-23 03:24:24,408 INFO L354 Elim1Store]: treesize reduction 200, result has 0.5 percent of original size [2021-11-23 03:24:24,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 104 [2021-11-23 03:24:24,433 INFO L354 Elim1Store]: treesize reduction 200, result has 0.5 percent of original size [2021-11-23 03:24:24,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 41 [2021-11-23 03:24:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 11 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:24:36,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:24:46,263 WARN L227 SmtUtils]: Spent 9.14s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-23 03:25:24,944 WARN L227 SmtUtils]: Spent 7.24s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:25:28,399 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (let ((.cse3 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse3))) (let ((.cse2 (bvadd .cse4 (_ bv20 32)))) (and (bvule .cse2 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse3))) (bvule (bvadd (_ bv16 32) .cse4) .cse2))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse5 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse7 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse8 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse9 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse10 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse11 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse12 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse5 .cse6) .cse7 .cse6) .cse8 .cse6) .cse9 .cse6) .cse10 .cse6) .cse11 .cse6))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse12)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse5 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse12)))))))) is different from false [2021-11-23 03:26:45,154 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (and (forall ((v_subst_2 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse0 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse3 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse3))))) (forall ((v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse5) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse5))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd (_ bv20 32) .cse4))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse6 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse7) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse7) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse7) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse7) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse7) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse7))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse6) (bvadd (_ bv20 32) .cse6))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse8 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse10 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse11 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse12 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse15 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse8 .cse9) .cse10 .cse9) .cse11 .cse9) .cse12 .cse9) .cse13 .cse9) .cse14 .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse8 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15)))))))) is different from false [2021-11-23 03:28:07,250 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse8 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse9 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3) .cse7 .cse3) .cse8 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse9)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse9)))))) (and (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse13 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse15 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse10 .cse11) .cse12 .cse11) .cse13 .cse11) .cse14 .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse10 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse15))))) (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32))) (let ((.cse16 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse17) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse17) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse17) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse17))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse16) (bvadd .cse16 (_ bv20 32)))))))) is different from true [2021-11-23 03:28:13,137 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse7 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse8 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3) .cse6 .cse3) .cse7 .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse8) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse8))))) (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse10) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse10))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse9) (bvadd .cse9 (_ bv20 32)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse11 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse13 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse11 .cse12) .cse13 .cse12) .cse14 .cse12) .cse15 .cse12) .cse16 .cse12) .cse17 .cse12))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse11 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse18)))))))) is different from false [2021-11-23 03:28:20,469 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_9 (_ BitVec 32)) (v_subst_8 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_9) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse2) (bvadd .cse2 (_ bv20 32))))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_10 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse4 (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse6 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_10)) (.cse7 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse8 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse9 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse10 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse11 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse4 .cse5) .cse6 .cse5) .cse7 .cse5) .cse8 .cse5) .cse9 .cse5) .cse10 .cse5))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse12 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse19 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13) .cse16 .cse13) .cse17 .cse13) .cse18 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32)) .cse18 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)))))))) is different from false [2021-11-23 03:28:22,478 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|) .cse1) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1) (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0))))) (and (forall ((v_subst_5 (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (v_subst_9 (_ BitVec 32)) (v_subst_8 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_9) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_8) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_3) .cse3) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_1) .cse3))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse2) (bvadd .cse2 (_ bv20 32))))) (forall ((v_subst_6 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_10 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr276| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse4 (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr276|)) (.cse6 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_10)) (.cse7 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_7)) (.cse8 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse9 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_4)) (.cse10 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_2)) (.cse11 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse4 .cse5) .cse6 .cse5) .cse7 .cse5) .cse8 .cse5) .cse9 .cse5) .cse10 .cse5))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse11)))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr276_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr276_104| (_ BitVec 32))) (not (let ((.cse12 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_105|)) (.cse14 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_106|)) (.cse15 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr276_107|)) (.cse16 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_104| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse17 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_103| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse18 (bvadd |v_#Ultimate.C_memset_#t~loopctr276_109| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse19 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13) .cse16 .cse13) .cse17 .cse13) .cse18 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32)) .cse18 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)))))))) is different from true [2021-11-23 03:29:43,574 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 03:29:43,574 INFO L186 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2021-11-23 03:29:43,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2021-11-23 03:29:43,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175608997] [2021-11-23 03:29:43,576 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2021-11-23 03:29:43,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 03:29:43,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:29:43,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 03:29:43,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1070, Unknown=115, NotChecked=370, Total=1722 [2021-11-23 03:29:43,578 INFO L87 Difference]: Start difference. First operand 1238 states and 1444 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:30:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:30:32,932 INFO L93 Difference]: Finished difference Result 1264 states and 1480 transitions. [2021-11-23 03:30:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 03:30:32,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2021-11-23 03:30:32,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:30:32,939 INFO L225 Difference]: With dead ends: 1264 [2021-11-23 03:30:32,939 INFO L226 Difference]: Without dead ends: 1260 [2021-11-23 03:30:32,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 415.5s TimeCoverageRelationStatistics Valid=508, Invalid=2470, Unknown=122, NotChecked=560, Total=3660 [2021-11-23 03:30:32,941 INFO L933 BasicCegarLoop]: 1023 mSDtfsCounter, 59 mSDsluCounter, 9162 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 10185 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:30:32,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 10185 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:30:32,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2021-11-23 03:30:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1250. [2021-11-23 03:30:32,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 813 states have (on average 1.7872078720787208) internal successors, (1453), 1244 states have internal predecessors, (1453), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 03:30:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1460 transitions. [2021-11-23 03:30:32,973 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1460 transitions. Word has length 79 [2021-11-23 03:30:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:30:32,973 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1460 transitions. [2021-11-23 03:30:32,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:30:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1460 transitions. [2021-11-23 03:30:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 03:30:32,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:30:32,975 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:30:32,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-23 03:30:33,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-23 03:30:33,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-11-23 03:30:33,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt [2021-11-23 03:30:33,593 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 631 more)] === [2021-11-23 03:30:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:30:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1487112527, now seen corresponding path program 3 times [2021-11-23 03:30:33,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:30:33,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952457823] [2021-11-23 03:30:33,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:30:33,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:30:33,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:30:33,595 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:30:33,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-23 03:30:34,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-23 03:30:34,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:30:34,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 03:30:34,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:30:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:35,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:30:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:37,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:30:37,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952457823] [2021-11-23 03:30:37,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952457823] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:30:37,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1764692976] [2021-11-23 03:30:37,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:30:37,313 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 03:30:37,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 [2021-11-23 03:30:37,313 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 03:30:37,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2021-11-23 03:30:39,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-23 03:30:39,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:30:39,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 03:30:39,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:30:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:39,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:30:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:30:40,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1764692976] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:30:40,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284065719] [2021-11-23 03:30:40,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:30:40,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:30:40,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:30:40,656 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:30:40,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802de382-9f62-4423-97e3-9f8377b91b45/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process