./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW --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 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:37:32,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:37:32,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:37:33,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:37:33,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:37:33,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:37:33,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:37:33,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:37:33,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:37:33,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:37:33,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:37:33,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:37:33,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:37:33,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:37:33,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:37:33,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:37:33,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:37:33,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:37:33,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:37:33,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:37:33,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:37:33,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:37:33,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:37:33,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:37:33,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:37:33,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:37:33,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:37:33,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:37:33,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:37:33,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:37:33,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:37:33,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:37:33,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:37:33,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:37:33,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:37:33,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:37:33,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:37:33,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:37:33,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:37:33,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:37:33,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:37:33,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 15:37:33,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:37:33,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:37:33,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:37:33,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:37:33,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:37:33,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:37:33,167 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:37:33,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:37:33,167 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:37:33,167 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:37:33,168 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:37:33,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:37:33,169 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:37:33,169 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:37:33,169 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:37:33,170 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:37:33,170 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:37:33,170 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:37:33,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 15:37:33,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 15:37:33,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:37:33,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:37:33,172 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:37:33,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:37:33,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:37:33,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:37:33,181 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 15:37:33,181 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 15:37:33,181 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 15:37:33,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:37:33,182 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:37:33,182 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:37:33,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:37:33,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:37:33,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:37:33,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:37:33,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:37:33,183 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:37:33,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:37:33,184 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:37:33,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:37:33,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:37:33,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 [2022-11-23 15:37:33,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:37:33,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:37:33,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:37:33,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:37:33,575 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:37:33,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2022-11-23 15:37:36,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:37:37,024 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:37:37,024 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2022-11-23 15:37:37,042 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data/4c4449714/81f973d85861425fb66cd9cd37640643/FLAG9a8351e52 [2022-11-23 15:37:37,059 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data/4c4449714/81f973d85861425fb66cd9cd37640643 [2022-11-23 15:37:37,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:37:37,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:37:37,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:37:37,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:37:37,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:37:37,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:37" (1/1) ... [2022-11-23 15:37:37,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb0967b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:37, skipping insertion in model container [2022-11-23 15:37:37,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:37" (1/1) ... [2022-11-23 15:37:37,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:37:37,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:37:37,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:37:37,623 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-23 15:37:37,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bd27e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:37, skipping insertion in model container [2022-11-23 15:37:37,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:37:37,624 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-23 15:37:37,627 INFO L158 Benchmark]: Toolchain (without parser) took 561.27ms. Allocated memory is still 167.8MB. Free memory was 137.3MB in the beginning and 124.9MB in the end (delta: 12.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-11-23 15:37:37,627 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:37:37,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.15ms. Allocated memory is still 167.8MB. Free memory was 137.1MB in the beginning and 125.6MB in the end (delta: 11.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-11-23 15:37:37,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.15ms. Allocated memory is still 167.8MB. Free memory was 137.1MB in the beginning and 125.6MB in the end (delta: 11.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW --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 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:37:40,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:37:40,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:37:40,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:37:40,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:37:40,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:37:40,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:37:40,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:37:40,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:37:40,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:37:40,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:37:40,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:37:40,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:37:40,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:37:40,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:37:40,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:37:40,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:37:40,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:37:40,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:37:40,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:37:40,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:37:40,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:37:40,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:37:40,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:37:40,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:37:40,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:37:40,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:37:40,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:37:40,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:37:40,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:37:40,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:37:40,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:37:40,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:37:40,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:37:40,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:37:40,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:37:40,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:37:40,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:37:40,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:37:40,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:37:40,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:37:40,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-23 15:37:40,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:37:40,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:37:40,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:37:40,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:37:40,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:37:40,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:37:40,305 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:37:40,305 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:37:40,306 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:37:40,306 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:37:40,306 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:37:40,306 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:37:40,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 15:37:40,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 15:37:40,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:37:40,308 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:37:40,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:37:40,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:37:40,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:37:40,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:37:40,309 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 15:37:40,310 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 15:37:40,310 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 15:37:40,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:37:40,310 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:37:40,310 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:37:40,311 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:37:40,311 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:37:40,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:37:40,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:37:40,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:37:40,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:37:40,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:37:40,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:37:40,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:37:40,313 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:37:40,313 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:37:40,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:37:40,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:37:40,313 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_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 [2022-11-23 15:37:40,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:37:40,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:37:40,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:37:40,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:37:40,776 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:37:40,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2022-11-23 15:37:43,967 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:37:44,290 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:37:44,290 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2022-11-23 15:37:44,306 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data/1263cc720/1e14a0dd51d348cd88fb9f5de3d0696a/FLAG69f24b8dd [2022-11-23 15:37:44,331 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/data/1263cc720/1e14a0dd51d348cd88fb9f5de3d0696a [2022-11-23 15:37:44,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:37:44,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:37:44,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:37:44,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:37:44,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:37:44,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:44" (1/1) ... [2022-11-23 15:37:44,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e1d7d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:44, skipping insertion in model container [2022-11-23 15:37:44,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:44" (1/1) ... [2022-11-23 15:37:44,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:37:44,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:37:44,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:37:44,959 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 15:37:44,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:37:45,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:37:45,086 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:37:45,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:37:45,210 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:37:45,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45 WrapperNode [2022-11-23 15:37:45,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:37:45,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:37:45,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:37:45,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:37:45,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,302 INFO L138 Inliner]: procedures = 167, calls = 72, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 121 [2022-11-23 15:37:45,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:37:45,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:37:45,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:37:45,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:37:45,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:37:45,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:37:45,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:37:45,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:37:45,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (1/1) ... [2022-11-23 15:37:45,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:37:45,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:37:45,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:37:45,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:37:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 15:37:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-11-23 15:37:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-11-23 15:37:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:37:45,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:37:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2022-11-23 15:37:45,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2022-11-23 15:37:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:37:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:37:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:37:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:37:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 15:37:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:37:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:37:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:37:45,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:37:45,645 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:37:45,648 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:37:46,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:37:46,276 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:37:46,277 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:37:46,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:46 BoogieIcfgContainer [2022-11-23 15:37:46,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:37:46,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:37:46,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:37:46,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:37:46,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:37:44" (1/3) ... [2022-11-23 15:37:46,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70692e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:37:46, skipping insertion in model container [2022-11-23 15:37:46,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:45" (2/3) ... [2022-11-23 15:37:46,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70692e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:37:46, skipping insertion in model container [2022-11-23 15:37:46,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:46" (3/3) ... [2022-11-23 15:37:46,289 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2022-11-23 15:37:46,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:37:46,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-11-23 15:37:46,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:37:46,375 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60197bd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:37:46,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-23 15:37:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 84 states have internal predecessors, (92), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:37:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:37:46,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:46,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:46,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash -47219119, now seen corresponding path program 1 times [2022-11-23 15:37:46,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:46,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823113894] [2022-11-23 15:37:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:46,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:46,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:46,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:46,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:37:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:46,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:37:46,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:46,667 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-23 15:37:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:46,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:46,759 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:46,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823113894] [2022-11-23 15:37:46,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823113894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:46,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:46,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:37:46,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95238431] [2022-11-23 15:37:46,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:46,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:37:46,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:46,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:37:46,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:37:46,804 INFO L87 Difference]: Start difference. First operand has 90 states, 58 states have (on average 1.5862068965517242) internal successors, (92), 84 states have internal predecessors, (92), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:47,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:47,427 INFO L93 Difference]: Finished difference Result 156 states and 175 transitions. [2022-11-23 15:37:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:37:47,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-23 15:37:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:47,442 INFO L225 Difference]: With dead ends: 156 [2022-11-23 15:37:47,442 INFO L226 Difference]: Without dead ends: 154 [2022-11-23 15:37:47,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:37:47,448 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 97 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:47,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 372 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:37:47,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-23 15:37:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 93. [2022-11-23 15:37:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.5573770491803278) internal successors, (95), 86 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:47,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2022-11-23 15:37:47,503 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 10 [2022-11-23 15:37:47,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:47,504 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2022-11-23 15:37:47,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:47,504 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2022-11-23 15:37:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:37:47,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:47,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:47,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 15:37:47,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:47,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash -18589968, now seen corresponding path program 1 times [2022-11-23 15:37:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:47,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150990219] [2022-11-23 15:37:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:47,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:47,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:47,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:47,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:37:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:47,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:37:47,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:47,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:47,902 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:47,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150990219] [2022-11-23 15:37:47,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150990219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:47,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:47,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:37:47,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120583444] [2022-11-23 15:37:47,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:47,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:37:47,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:47,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:37:47,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:37:47,906 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:47,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:47,946 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2022-11-23 15:37:47,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:37:47,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-23 15:37:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:47,949 INFO L225 Difference]: With dead ends: 110 [2022-11-23 15:37:47,949 INFO L226 Difference]: Without dead ends: 110 [2022-11-23 15:37:47,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:37:47,951 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:47,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 378 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:37:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-23 15:37:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 91. [2022-11-23 15:37:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 84 states have internal predecessors, (92), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2022-11-23 15:37:47,971 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 10 [2022-11-23 15:37:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:47,973 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2022-11-23 15:37:47,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2022-11-23 15:37:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:37:47,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:47,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:47,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:48,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:48,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1463792640, now seen corresponding path program 1 times [2022-11-23 15:37:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:48,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777884267] [2022-11-23 15:37:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:48,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:48,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:48,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:48,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 15:37:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:48,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 15:37:48,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:48,358 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 15:37:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:48,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:48,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777884267] [2022-11-23 15:37:48,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777884267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:48,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:48,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:37:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632256838] [2022-11-23 15:37:48,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:48,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:37:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:48,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:37:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:37:48,512 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:49,128 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2022-11-23 15:37:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:37:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-23 15:37:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:49,131 INFO L225 Difference]: With dead ends: 128 [2022-11-23 15:37:49,131 INFO L226 Difference]: Without dead ends: 128 [2022-11-23 15:37:49,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:37:49,133 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 71 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:49,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 445 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:37:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-23 15:37:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 90. [2022-11-23 15:37:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.5166666666666666) internal successors, (91), 83 states have internal predecessors, (91), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2022-11-23 15:37:49,144 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 11 [2022-11-23 15:37:49,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:49,145 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2022-11-23 15:37:49,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:49,145 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2022-11-23 15:37:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:37:49,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:49,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:49,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:49,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:49,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1867041687, now seen corresponding path program 1 times [2022-11-23 15:37:49,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:49,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385283746] [2022-11-23 15:37:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:49,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:49,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:49,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:49,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 15:37:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:49,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:37:49,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:49,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:49,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385283746] [2022-11-23 15:37:49,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385283746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:49,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:49,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:37:49,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137297350] [2022-11-23 15:37:49,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:49,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:37:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:49,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:37:49,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:37:49,516 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:49,548 INFO L93 Difference]: Finished difference Result 109 states and 117 transitions. [2022-11-23 15:37:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:37:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-23 15:37:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:49,550 INFO L225 Difference]: With dead ends: 109 [2022-11-23 15:37:49,550 INFO L226 Difference]: Without dead ends: 109 [2022-11-23 15:37:49,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:37:49,551 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 34 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:49,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 401 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:37:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-23 15:37:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 90. [2022-11-23 15:37:49,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.5) internal successors, (90), 83 states have internal predecessors, (90), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:49,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2022-11-23 15:37:49,560 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 12 [2022-11-23 15:37:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:49,560 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2022-11-23 15:37:49,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2022-11-23 15:37:49,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:37:49,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:49,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:49,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:49,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:49,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:49,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash -685115274, now seen corresponding path program 1 times [2022-11-23 15:37:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:49,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788723927] [2022-11-23 15:37:49,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:49,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:49,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:49,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:49,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 15:37:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:49,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 15:37:49,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:49,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:49,899 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:49,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788723927] [2022-11-23 15:37:49,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788723927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:49,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:49,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:37:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600161932] [2022-11-23 15:37:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:49,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:37:49,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:49,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:37:49,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:37:49,902 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:49,959 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2022-11-23 15:37:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:37:49,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-23 15:37:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:49,961 INFO L225 Difference]: With dead ends: 106 [2022-11-23 15:37:49,961 INFO L226 Difference]: Without dead ends: 106 [2022-11-23 15:37:49,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:37:49,968 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 18 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:49,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 273 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:37:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-23 15:37:49,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 92. [2022-11-23 15:37:49,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 85 states have internal predecessors, (92), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:49,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2022-11-23 15:37:49,990 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 12 [2022-11-23 15:37:49,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:49,991 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2022-11-23 15:37:49,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:49,992 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2022-11-23 15:37:49,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:37:49,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:49,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:50,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:50,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:50,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:50,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:50,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2102322433, now seen corresponding path program 1 times [2022-11-23 15:37:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:50,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663283235] [2022-11-23 15:37:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:50,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:50,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:50,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:50,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 15:37:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:50,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:37:50,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:50,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:50,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:50,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663283235] [2022-11-23 15:37:50,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663283235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:50,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:50,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:37:50,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243320585] [2022-11-23 15:37:50,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:50,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:37:50,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:50,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:37:50,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:37:50,334 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:50,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:50,372 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-11-23 15:37:50,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:37:50,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-23 15:37:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:50,374 INFO L225 Difference]: With dead ends: 100 [2022-11-23 15:37:50,374 INFO L226 Difference]: Without dead ends: 100 [2022-11-23 15:37:50,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:37:50,375 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 33 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:50,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 197 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:37:50,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-23 15:37:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2022-11-23 15:37:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 86 states have internal predecessors, (93), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 100 transitions. [2022-11-23 15:37:50,382 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 100 transitions. Word has length 16 [2022-11-23 15:37:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:50,383 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 100 transitions. [2022-11-23 15:37:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 100 transitions. [2022-11-23 15:37:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:37:50,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:50,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:50,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:50,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:50,596 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:50,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:50,597 INFO L85 PathProgramCache]: Analyzing trace with hash -806745110, now seen corresponding path program 1 times [2022-11-23 15:37:50,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:50,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413698778] [2022-11-23 15:37:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:50,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:50,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:50,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:50,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 15:37:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:50,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:37:50,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:50,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:50,832 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:50,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413698778] [2022-11-23 15:37:50,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413698778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:50,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [953823684] [2022-11-23 15:37:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:50,833 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:37:50,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:37:50,836 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:37:50,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-23 15:37:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:51,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:37:51,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:51,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:51,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [953823684] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:51,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136339803] [2022-11-23 15:37:51,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:51,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:37:51,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:37:51,090 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:37:51,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 15:37:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:51,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 15:37:51,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:51,207 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-23 15:37:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:37:51,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:51,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136339803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:51,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:37:51,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5, 5, 5] total 14 [2022-11-23 15:37:51,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537087568] [2022-11-23 15:37:51,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:51,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:37:51,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:51,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:37:51,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:37:51,360 INFO L87 Difference]: Start difference. First operand 93 states and 100 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:51,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:51,965 INFO L93 Difference]: Finished difference Result 131 states and 143 transitions. [2022-11-23 15:37:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:37:51,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 15:37:51,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:51,970 INFO L225 Difference]: With dead ends: 131 [2022-11-23 15:37:51,970 INFO L226 Difference]: Without dead ends: 131 [2022-11-23 15:37:51,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-23 15:37:51,971 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 95 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:51,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 516 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:37:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-23 15:37:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 92. [2022-11-23 15:37:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 85 states have internal predecessors, (92), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:51,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2022-11-23 15:37:51,985 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 17 [2022-11-23 15:37:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:51,989 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2022-11-23 15:37:51,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2022-11-23 15:37:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:37:51,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:51,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:52,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:52,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:52,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:52,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:52,592 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:52,593 INFO L85 PathProgramCache]: Analyzing trace with hash -806745109, now seen corresponding path program 1 times [2022-11-23 15:37:52,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:52,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397004044] [2022-11-23 15:37:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:52,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:52,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:52,594 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:52,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-23 15:37:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:52,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:37:52,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:52,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:52,885 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:52,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397004044] [2022-11-23 15:37:52,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397004044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:52,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [612691783] [2022-11-23 15:37:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:52,886 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:37:52,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:37:52,888 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:37:52,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-23 15:37:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:53,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:37:53,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:53,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:53,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [612691783] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:53,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093376260] [2022-11-23 15:37:53,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:53,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:37:53,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:37:53,121 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:37:53,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 15:37:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:53,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:37:53,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:53,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:53,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093376260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:53,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:37:53,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2022-11-23 15:37:53,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201044484] [2022-11-23 15:37:53,265 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:37:53,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:37:53,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:53,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:37:53,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:37:53,267 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:53,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:53,356 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-11-23 15:37:53,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:37:53,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 15:37:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:53,358 INFO L225 Difference]: With dead ends: 102 [2022-11-23 15:37:53,358 INFO L226 Difference]: Without dead ends: 102 [2022-11-23 15:37:53,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:37:53,359 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 35 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:53,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 454 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:37:53,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-23 15:37:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 95. [2022-11-23 15:37:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4393939393939394) internal successors, (95), 88 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:37:53,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2022-11-23 15:37:53,364 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 17 [2022-11-23 15:37:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:53,365 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2022-11-23 15:37:53,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2022-11-23 15:37:53,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:37:53,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:53,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:53,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:53,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:53,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2022-11-23 15:37:53,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 15:37:53,980 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1874334272, now seen corresponding path program 1 times [2022-11-23 15:37:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:53,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692568930] [2022-11-23 15:37:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:53,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:53,982 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:53,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-23 15:37:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:54,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:37:54,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:54,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:54,204 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:54,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692568930] [2022-11-23 15:37:54,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692568930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:54,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:54,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:37:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972941312] [2022-11-23 15:37:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:54,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:37:54,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:54,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:37:54,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:37:54,208 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:54,316 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2022-11-23 15:37:54,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:37:54,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 15:37:54,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:54,319 INFO L225 Difference]: With dead ends: 108 [2022-11-23 15:37:54,319 INFO L226 Difference]: Without dead ends: 108 [2022-11-23 15:37:54,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:37:54,322 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 15 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:54,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 442 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:37:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-23 15:37:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2022-11-23 15:37:54,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 95 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 15:37:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2022-11-23 15:37:54,338 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 18 [2022-11-23 15:37:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:54,339 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2022-11-23 15:37:54,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2022-11-23 15:37:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:37:54,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:54,342 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:54,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:54,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:54,556 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:54,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:54,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2116321856, now seen corresponding path program 2 times [2022-11-23 15:37:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:54,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138426500] [2022-11-23 15:37:54,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:37:54,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:54,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:54,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:54,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-23 15:37:54,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 15:37:54,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:37:54,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 15:37:54,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:54,667 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 15:37:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:37:54,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:54,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:54,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138426500] [2022-11-23 15:37:54,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138426500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:54,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:54,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:37:54,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212691558] [2022-11-23 15:37:54,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:54,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:37:54,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:37:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:37:54,921 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:55,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:55,706 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2022-11-23 15:37:55,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:37:55,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-23 15:37:55,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:55,708 INFO L225 Difference]: With dead ends: 146 [2022-11-23 15:37:55,708 INFO L226 Difference]: Without dead ends: 146 [2022-11-23 15:37:55,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:37:55,709 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 105 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:55,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 671 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 15:37:55,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-23 15:37:55,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 102. [2022-11-23 15:37:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 94 states have internal predecessors, (100), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 15:37:55,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2022-11-23 15:37:55,715 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 20 [2022-11-23 15:37:55,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:55,715 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2022-11-23 15:37:55,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:55,716 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2022-11-23 15:37:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:37:55,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:55,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:55,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:55,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:55,929 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash 623421782, now seen corresponding path program 1 times [2022-11-23 15:37:55,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:55,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462991407] [2022-11-23 15:37:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:55,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:55,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:55,932 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:55,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-23 15:37:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:56,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:37:56,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:56,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:56,059 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:56,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462991407] [2022-11-23 15:37:56,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462991407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:56,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:37:56,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:37:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313474636] [2022-11-23 15:37:56,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:56,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:37:56,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:56,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:37:56,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:37:56,061 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:37:56,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:56,258 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2022-11-23 15:37:56,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:37:56,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 15:37:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:56,260 INFO L225 Difference]: With dead ends: 108 [2022-11-23 15:37:56,260 INFO L226 Difference]: Without dead ends: 92 [2022-11-23 15:37:56,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:37:56,261 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 31 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:56,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 176 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:37:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-23 15:37:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2022-11-23 15:37:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 82 states have internal predecessors, (88), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:37:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2022-11-23 15:37:56,264 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 21 [2022-11-23 15:37:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:56,265 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2022-11-23 15:37:56,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:37:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2022-11-23 15:37:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:37:56,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:56,266 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:56,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:56,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:56,477 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:56,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2027686655, now seen corresponding path program 1 times [2022-11-23 15:37:56,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:56,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556747464] [2022-11-23 15:37:56,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:56,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:56,479 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:56,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-23 15:37:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:56,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:37:56,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:56,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:56,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:56,983 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:56,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556747464] [2022-11-23 15:37:56,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556747464] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:56,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [758117271] [2022-11-23 15:37:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:56,984 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:37:56,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:37:56,987 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:37:57,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-23 15:37:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:57,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:37:57,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:37:57,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:57,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [758117271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:57,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:37:57,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 18 [2022-11-23 15:37:57,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741090710] [2022-11-23 15:37:57,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:57,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:37:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:57,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:37:57,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-23 15:37:57,302 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:57,368 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2022-11-23 15:37:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:37:57,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-23 15:37:57,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:57,370 INFO L225 Difference]: With dead ends: 88 [2022-11-23 15:37:57,370 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 15:37:57,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:37:57,371 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 51 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:57,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 360 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:37:57,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 15:37:57,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-23 15:37:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 82 states have internal predecessors, (87), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:37:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2022-11-23 15:37:57,375 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 22 [2022-11-23 15:37:57,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:57,375 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2022-11-23 15:37:57,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2022-11-23 15:37:57,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:37:57,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:57,377 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:57,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:57,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:57,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:57,788 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:37:57,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:37:57,788 INFO L85 PathProgramCache]: Analyzing trace with hash 140488903, now seen corresponding path program 1 times [2022-11-23 15:37:57,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:37:57,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329376686] [2022-11-23 15:37:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:57,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:37:57,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:37:57,790 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:37:57,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-23 15:37:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:57,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:37:57,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:58,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:58,280 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:37:58,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329376686] [2022-11-23 15:37:58,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329376686] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:58,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1990629977] [2022-11-23 15:37:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:58,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:37:58,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:37:58,282 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:37:58,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-23 15:37:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:58,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:37:58,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:58,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:37:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:37:58,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1990629977] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:37:58,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126979977] [2022-11-23 15:37:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:37:58,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:37:58,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:37:58,591 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:37:58,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-23 15:37:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:37:58,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 15:37:58,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:37:58,735 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-23 15:37:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:37:58,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:37:58,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126979977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:37:58,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:37:58,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 8, 8] total 21 [2022-11-23 15:37:58,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882285036] [2022-11-23 15:37:58,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:37:58,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:37:58,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:37:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:37:58,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:37:58,964 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:37:59,433 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2022-11-23 15:37:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:37:59,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-23 15:37:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:37:59,434 INFO L225 Difference]: With dead ends: 86 [2022-11-23 15:37:59,434 INFO L226 Difference]: Without dead ends: 86 [2022-11-23 15:37:59,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:37:59,436 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 77 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:37:59,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 367 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:37:59,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-23 15:37:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-23 15:37:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 80 states have internal predecessors, (85), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:37:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2022-11-23 15:37:59,439 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 24 [2022-11-23 15:37:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:37:59,440 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2022-11-23 15:37:59,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:37:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2022-11-23 15:37:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:37:59,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:37:59,441 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:37:59,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-11-23 15:37:59,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-23 15:37:59,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:00,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:00,054 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:00,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash 140488904, now seen corresponding path program 1 times [2022-11-23 15:38:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:00,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806005622] [2022-11-23 15:38:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:00,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:00,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:00,060 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:00,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-23 15:38:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:00,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:00,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:00,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:00,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:00,522 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:00,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806005622] [2022-11-23 15:38:00,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806005622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:00,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [627654666] [2022-11-23 15:38:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:00,523 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:00,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:00,527 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:00,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-23 15:38:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:00,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:00,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:00,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:00,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [627654666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:00,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343781817] [2022-11-23 15:38:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:00,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:00,860 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:00,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-23 15:38:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:01,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 15:38:01,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:01,040 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 15:38:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:01,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:01,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343781817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:01,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:01,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8, 8, 8] total 22 [2022-11-23 15:38:01,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820299614] [2022-11-23 15:38:01,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:01,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:38:01,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:01,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:38:01,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:38:01,400 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:38:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:02,026 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2022-11-23 15:38:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:38:02,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-23 15:38:02,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:02,028 INFO L225 Difference]: With dead ends: 84 [2022-11-23 15:38:02,028 INFO L226 Difference]: Without dead ends: 84 [2022-11-23 15:38:02,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:38:02,030 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 81 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:02,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 462 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:38:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-23 15:38:02,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-23 15:38:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.360655737704918) internal successors, (83), 78 states have internal predecessors, (83), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2022-11-23 15:38:02,034 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 24 [2022-11-23 15:38:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:02,035 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2022-11-23 15:38:02,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:38:02,035 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2022-11-23 15:38:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:38:02,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:02,036 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:02,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:02,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2022-11-23 15:38:02,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-23 15:38:02,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:02,650 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:02,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:02,651 INFO L85 PathProgramCache]: Analyzing trace with hash 89781803, now seen corresponding path program 1 times [2022-11-23 15:38:02,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:02,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150881380] [2022-11-23 15:38:02,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:02,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:02,653 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:02,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-23 15:38:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:02,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:02,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:02,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:03,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:03,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150881380] [2022-11-23 15:38:03,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150881380] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:03,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2045149690] [2022-11-23 15:38:03,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:03,131 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:03,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:03,132 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:03,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-23 15:38:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:03,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:38:03,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:03,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:03,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:03,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2045149690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:03,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:38:03,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 8] total 19 [2022-11-23 15:38:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152717630] [2022-11-23 15:38:03,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:03,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:38:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:38:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:38:03,485 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:38:03,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:03,587 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2022-11-23 15:38:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:38:03,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-23 15:38:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:03,589 INFO L225 Difference]: With dead ends: 84 [2022-11-23 15:38:03,589 INFO L226 Difference]: Without dead ends: 84 [2022-11-23 15:38:03,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:38:03,591 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 72 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:03,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 384 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:38:03,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-23 15:38:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-23 15:38:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 77 states have internal predecessors, (82), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2022-11-23 15:38:03,594 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 24 [2022-11-23 15:38:03,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:03,594 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2022-11-23 15:38:03,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:38:03,594 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2022-11-23 15:38:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:38:03,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:03,599 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:03,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:03,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:04,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:04,004 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:04,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:04,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1690693720, now seen corresponding path program 1 times [2022-11-23 15:38:04,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:04,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850171047] [2022-11-23 15:38:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:04,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:04,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:04,007 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:04,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-23 15:38:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:04,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:04,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:04,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:04,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:04,476 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:04,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850171047] [2022-11-23 15:38:04,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850171047] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:04,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1175145568] [2022-11-23 15:38:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:04,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:04,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:04,479 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:04,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-23 15:38:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:04,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:04,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:04,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:04,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1175145568] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:04,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411955665] [2022-11-23 15:38:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:04,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:04,848 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:04,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-23 15:38:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:05,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 15:38:05,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:05,032 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-23 15:38:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:05,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:05,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411955665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:05,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:05,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 8, 8] total 21 [2022-11-23 15:38:05,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222785227] [2022-11-23 15:38:05,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:05,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:38:05,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:05,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:38:05,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:38:05,372 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:05,960 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2022-11-23 15:38:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:38:05,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-23 15:38:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:05,963 INFO L225 Difference]: With dead ends: 93 [2022-11-23 15:38:05,963 INFO L226 Difference]: Without dead ends: 93 [2022-11-23 15:38:05,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:38:05,964 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 101 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:05,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 281 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:38:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-23 15:38:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 82. [2022-11-23 15:38:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 75 states have internal predecessors, (80), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2022-11-23 15:38:05,969 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 32 [2022-11-23 15:38:05,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:05,969 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2022-11-23 15:38:05,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2022-11-23 15:38:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:38:05,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:05,970 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:05,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:06,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-23 15:38:06,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-11-23 15:38:06,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:06,575 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:06,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:06,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1690693719, now seen corresponding path program 1 times [2022-11-23 15:38:06,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:06,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562084291] [2022-11-23 15:38:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:06,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:06,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:06,577 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:06,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-23 15:38:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:06,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:06,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:06,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:07,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:07,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562084291] [2022-11-23 15:38:07,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562084291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:07,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1926056657] [2022-11-23 15:38:07,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:07,160 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:07,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:07,163 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:07,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2022-11-23 15:38:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:07,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:07,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:07,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1926056657] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:07,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356367897] [2022-11-23 15:38:07,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:07,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:07,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:07,532 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:07,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-23 15:38:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:07,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 15:38:07,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:07,737 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 15:38:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:08,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:08,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356367897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:08,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:08,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8, 8, 8] total 22 [2022-11-23 15:38:08,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170017562] [2022-11-23 15:38:08,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:08,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:38:08,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:38:08,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-11-23 15:38:08,196 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:08,888 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2022-11-23 15:38:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:38:08,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-23 15:38:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:08,894 INFO L225 Difference]: With dead ends: 87 [2022-11-23 15:38:08,895 INFO L226 Difference]: Without dead ends: 87 [2022-11-23 15:38:08,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:38:08,896 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 106 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:08,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 404 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:38:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-23 15:38:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 80. [2022-11-23 15:38:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.278688524590164) internal successors, (78), 73 states have internal predecessors, (78), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2022-11-23 15:38:08,900 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 32 [2022-11-23 15:38:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:08,901 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2022-11-23 15:38:08,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2022-11-23 15:38:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 15:38:08,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:08,902 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:08,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:09,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-11-23 15:38:09,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:09,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:09,506 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:09,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:09,507 INFO L85 PathProgramCache]: Analyzing trace with hash 211965810, now seen corresponding path program 1 times [2022-11-23 15:38:09,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:09,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680785928] [2022-11-23 15:38:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:09,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:09,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:09,509 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:09,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-23 15:38:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:09,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:09,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:09,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:10,018 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:10,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680785928] [2022-11-23 15:38:10,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680785928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:10,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102027240] [2022-11-23 15:38:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:10,019 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:10,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:10,020 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:10,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-11-23 15:38:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:10,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:38:10,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:10,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:10,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2102027240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:10,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:38:10,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 8] total 19 [2022-11-23 15:38:10,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477149234] [2022-11-23 15:38:10,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:10,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:38:10,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:38:10,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:38:10,418 INFO L87 Difference]: Start difference. First operand 80 states and 84 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:10,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:10,515 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2022-11-23 15:38:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:38:10,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-11-23 15:38:10,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:10,517 INFO L225 Difference]: With dead ends: 80 [2022-11-23 15:38:10,517 INFO L226 Difference]: Without dead ends: 80 [2022-11-23 15:38:10,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:38:10,518 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 39 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:10,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 382 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:38:10,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-23 15:38:10,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-23 15:38:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 73 states have internal predecessors, (77), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2022-11-23 15:38:10,521 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 38 [2022-11-23 15:38:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:10,521 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2022-11-23 15:38:10,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2022-11-23 15:38:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:38:10,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:10,522 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:10,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:10,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-23 15:38:10,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:10,923 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:10,923 INFO L85 PathProgramCache]: Analyzing trace with hash 494253528, now seen corresponding path program 1 times [2022-11-23 15:38:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:10,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312597310] [2022-11-23 15:38:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:10,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:10,925 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:10,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-23 15:38:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:11,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:11,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:11,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:11,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:11,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312597310] [2022-11-23 15:38:11,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312597310] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:11,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1753434045] [2022-11-23 15:38:11,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:11,401 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:11,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:11,402 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-11-23 15:38:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:11,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:11,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:11,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:11,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1753434045] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:11,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38615910] [2022-11-23 15:38:11,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:11,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:11,831 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:11,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-23 15:38:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:12,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 15:38:12,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:12,046 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-23 15:38:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:12,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:12,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38615910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:12,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:12,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 8, 8, 8] total 23 [2022-11-23 15:38:12,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512966027] [2022-11-23 15:38:12,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:12,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 15:38:12,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:12,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 15:38:12,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:38:12,381 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:13,029 INFO L93 Difference]: Finished difference Result 87 states and 89 transitions. [2022-11-23 15:38:13,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:38:13,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-23 15:38:13,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:13,031 INFO L225 Difference]: With dead ends: 87 [2022-11-23 15:38:13,031 INFO L226 Difference]: Without dead ends: 87 [2022-11-23 15:38:13,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2022-11-23 15:38:13,032 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 112 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:13,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 322 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:38:13,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-23 15:38:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 78. [2022-11-23 15:38:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 71 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:13,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2022-11-23 15:38:13,036 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 44 [2022-11-23 15:38:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:13,036 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2022-11-23 15:38:13,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2022-11-23 15:38:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:38:13,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:13,037 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:13,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:13,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2022-11-23 15:38:13,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:13,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:13,639 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:13,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:13,639 INFO L85 PathProgramCache]: Analyzing trace with hash 494253529, now seen corresponding path program 1 times [2022-11-23 15:38:13,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:13,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865805695] [2022-11-23 15:38:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:13,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:13,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:13,641 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:13,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-23 15:38:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:13,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:13,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:13,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:14,197 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865805695] [2022-11-23 15:38:14,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865805695] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1075756257] [2022-11-23 15:38:14,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:14,197 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:14,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:14,198 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:14,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2022-11-23 15:38:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:14,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:14,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:14,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:14,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1075756257] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:14,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921813382] [2022-11-23 15:38:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:14,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:14,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:14,640 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:14,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-23 15:38:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:14,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-23 15:38:14,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:14,910 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 15:38:15,490 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:15,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:15,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921813382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:15,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:15,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8, 8, 8] total 24 [2022-11-23 15:38:15,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265374273] [2022-11-23 15:38:15,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:15,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:38:15,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:15,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:38:15,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:38:15,493 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:16,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:16,222 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2022-11-23 15:38:16,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:38:16,223 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-23 15:38:16,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:16,224 INFO L225 Difference]: With dead ends: 78 [2022-11-23 15:38:16,224 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 15:38:16,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=696, Unknown=0, NotChecked=0, Total=812 [2022-11-23 15:38:16,226 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 142 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:16,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 382 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:38:16,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 15:38:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2022-11-23 15:38:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 69 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-11-23 15:38:16,230 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 44 [2022-11-23 15:38:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:16,230 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-11-23 15:38:16,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-11-23 15:38:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:38:16,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:16,232 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:16,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:16,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-23 15:38:16,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2022-11-23 15:38:16,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:16,837 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:16,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1204865598, now seen corresponding path program 1 times [2022-11-23 15:38:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:16,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226267623] [2022-11-23 15:38:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:16,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:16,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:16,839 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:16,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-23 15:38:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:17,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:17,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:17,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:17,366 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226267623] [2022-11-23 15:38:17,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226267623] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:17,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [301898447] [2022-11-23 15:38:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:17,367 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:17,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:17,371 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:17,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-11-23 15:38:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:17,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:38:17,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:17,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:17,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [301898447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:17,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:38:17,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 21 [2022-11-23 15:38:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397413129] [2022-11-23 15:38:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:17,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 15:38:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 15:38:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-11-23 15:38:17,925 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:18,077 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2022-11-23 15:38:18,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:38:18,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-11-23 15:38:18,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:18,080 INFO L225 Difference]: With dead ends: 78 [2022-11-23 15:38:18,080 INFO L226 Difference]: Without dead ends: 76 [2022-11-23 15:38:18,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:38:18,081 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 63 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:18,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 442 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:38:18,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-23 15:38:18,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-23 15:38:18,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 61 states have (on average 1.180327868852459) internal successors, (72), 69 states have internal predecessors, (72), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2022-11-23 15:38:18,097 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 47 [2022-11-23 15:38:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:18,098 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2022-11-23 15:38:18,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2022-11-23 15:38:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 15:38:18,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:18,099 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:18,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:18,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-23 15:38:18,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:18,499 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1347214652, now seen corresponding path program 1 times [2022-11-23 15:38:18,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:18,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201086993] [2022-11-23 15:38:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:18,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:18,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:18,502 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:18,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-23 15:38:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:18,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:18,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:18,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:19,127 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:19,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201086993] [2022-11-23 15:38:19,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201086993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:19,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [941453971] [2022-11-23 15:38:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:19,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:19,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:19,131 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:19,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2022-11-23 15:38:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:19,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:19,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:19,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:19,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [941453971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:19,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778087987] [2022-11-23 15:38:19,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:19,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:19,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:19,657 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:19,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-11-23 15:38:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:19,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 15:38:19,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:19,917 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-23 15:38:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:20,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:20,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778087987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:20,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:20,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8, 8, 8] total 24 [2022-11-23 15:38:20,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954293069] [2022-11-23 15:38:20,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:20,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:38:20,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:20,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:38:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:38:20,339 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:21,051 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2022-11-23 15:38:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:38:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-11-23 15:38:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:21,053 INFO L225 Difference]: With dead ends: 81 [2022-11-23 15:38:21,053 INFO L226 Difference]: Without dead ends: 81 [2022-11-23 15:38:21,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2022-11-23 15:38:21,055 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:21,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 312 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:38:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-23 15:38:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 74. [2022-11-23 15:38:21,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 67 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2022-11-23 15:38:21,059 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 50 [2022-11-23 15:38:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:21,060 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2022-11-23 15:38:21,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2022-11-23 15:38:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 15:38:21,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:21,061 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:21,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:21,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2022-11-23 15:38:21,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2022-11-23 15:38:21,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:21,671 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:21,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:21,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1347214653, now seen corresponding path program 1 times [2022-11-23 15:38:21,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:21,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328816396] [2022-11-23 15:38:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:21,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:21,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:21,673 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:21,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-23 15:38:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:21,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:21,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:22,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:22,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:22,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:22,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328816396] [2022-11-23 15:38:22,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328816396] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:22,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [478978099] [2022-11-23 15:38:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:22,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:22,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:22,235 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:22,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2022-11-23 15:38:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:22,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:22,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:22,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:22,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [478978099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:22,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899653592] [2022-11-23 15:38:22,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:22,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:22,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:22,812 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:22,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-11-23 15:38:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:23,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-23 15:38:23,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:23,112 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 15:38:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:23,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:23,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899653592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:23,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-23 15:38:23,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8, 8, 8, 8] total 25 [2022-11-23 15:38:23,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851153319] [2022-11-23 15:38:23,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:23,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:38:23,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:38:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2022-11-23 15:38:23,718 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:24,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:24,513 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2022-11-23 15:38:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:38:24,514 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-11-23 15:38:24,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:24,515 INFO L225 Difference]: With dead ends: 76 [2022-11-23 15:38:24,515 INFO L226 Difference]: Without dead ends: 76 [2022-11-23 15:38:24,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:38:24,516 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 157 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:24,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 352 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:38:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-23 15:38:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2022-11-23 15:38:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 65 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:24,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2022-11-23 15:38:24,520 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 50 [2022-11-23 15:38:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:24,521 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2022-11-23 15:38:24,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2022-11-23 15:38:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-23 15:38:24,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:24,522 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:24,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:24,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2022-11-23 15:38:24,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2022-11-23 15:38:25,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:25,128 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:25,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:25,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1597604877, now seen corresponding path program 1 times [2022-11-23 15:38:25,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:25,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862565] [2022-11-23 15:38:25,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:25,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:25,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:25,130 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:25,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-23 15:38:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:25,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:25,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:25,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:25,722 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:25,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862565] [2022-11-23 15:38:25,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862565] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:25,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1478754422] [2022-11-23 15:38:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:25,723 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:25,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:25,727 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:25,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2022-11-23 15:38:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:26,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 15:38:26,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:38:26,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:38:26,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1478754422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:38:26,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:38:26,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8] total 24 [2022-11-23 15:38:26,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33826762] [2022-11-23 15:38:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:38:26,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:38:26,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:26,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:38:26,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:38:26,580 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:27,134 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2022-11-23 15:38:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 15:38:27,136 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-23 15:38:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:27,136 INFO L225 Difference]: With dead ends: 75 [2022-11-23 15:38:27,136 INFO L226 Difference]: Without dead ends: 75 [2022-11-23 15:38:27,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2022-11-23 15:38:27,138 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:27,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 382 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:38:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-23 15:38:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2022-11-23 15:38:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 61 states have (on average 1.098360655737705) internal successors, (67), 64 states have internal predecessors, (67), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2022-11-23 15:38:27,142 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 53 [2022-11-23 15:38:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:27,143 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2022-11-23 15:38:27,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:38:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2022-11-23 15:38:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-23 15:38:27,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:27,144 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:27,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:27,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:27,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:27,545 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:27,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1140541962, now seen corresponding path program 1 times [2022-11-23 15:38:27,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:27,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689299669] [2022-11-23 15:38:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:27,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:27,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:27,547 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:27,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-23 15:38:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:27,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:27,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:27,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:28,116 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:28,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689299669] [2022-11-23 15:38:28,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689299669] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:28,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1188973773] [2022-11-23 15:38:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:28,117 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:28,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:28,118 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:28,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2022-11-23 15:38:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:28,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:38:28,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:28,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:28,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1188973773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:28,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333669854] [2022-11-23 15:38:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:38:28,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:28,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:28,672 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:28,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2022-11-23 15:38:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:38:28,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:38:28,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:28,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:29,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333669854] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:29,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:38:29,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 19 [2022-11-23 15:38:29,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370246779] [2022-11-23 15:38:29,375 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:38:29,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-23 15:38:29,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-23 15:38:29,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:38:29,377 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 19 states, 19 states have (on average 4.157894736842105) internal successors, (79), 19 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:38:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:29,869 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2022-11-23 15:38:29,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 15:38:29,872 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.157894736842105) internal successors, (79), 19 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-11-23 15:38:29,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:29,873 INFO L225 Difference]: With dead ends: 77 [2022-11-23 15:38:29,873 INFO L226 Difference]: Without dead ends: 77 [2022-11-23 15:38:29,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2022-11-23 15:38:29,874 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 179 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:29,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 615 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:38:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-23 15:38:29,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-23 15:38:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 70 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2022-11-23 15:38:29,878 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 55 [2022-11-23 15:38:29,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:29,878 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2022-11-23 15:38:29,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.157894736842105) internal successors, (79), 19 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:38:29,879 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2022-11-23 15:38:29,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 15:38:29,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:29,880 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:29,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:30,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2022-11-23 15:38:30,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:30,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:30,489 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:30,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1627259350, now seen corresponding path program 2 times [2022-11-23 15:38:30,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:30,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068953152] [2022-11-23 15:38:30,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:38:30,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:30,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:30,491 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:30,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-23 15:38:30,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:38:30,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:38:30,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 15:38:30,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:31,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:32,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:38:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068953152] [2022-11-23 15:38:32,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068953152] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [687399598] [2022-11-23 15:38:32,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:38:32,656 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:38:32,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:38:32,659 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:38:32,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2022-11-23 15:38:33,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:38:33,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:38:33,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 15:38:33,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:33,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:34,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [687399598] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:34,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853993658] [2022-11-23 15:38:34,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:38:34,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:38:34,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:38:34,243 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:38:34,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2022-11-23 15:38:35,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:38:35,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:38:35,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 15:38:35,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:38:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:35,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:38:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:38:36,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853993658] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:38:36,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:38:36,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 35 [2022-11-23 15:38:36,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882821030] [2022-11-23 15:38:36,754 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:38:36,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-23 15:38:36,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:38:36,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-23 15:38:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 15:38:36,756 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 35 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 35 states have internal predecessors, (94), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:38:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:38:39,379 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2022-11-23 15:38:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 15:38:39,381 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 35 states have internal predecessors, (94), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2022-11-23 15:38:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:38:39,382 INFO L225 Difference]: With dead ends: 89 [2022-11-23 15:38:39,382 INFO L226 Difference]: Without dead ends: 89 [2022-11-23 15:38:39,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=615, Invalid=1547, Unknown=0, NotChecked=0, Total=2162 [2022-11-23 15:38:39,384 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 373 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:38:39,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 872 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:38:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-23 15:38:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-23 15:38:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 82 states have internal predecessors, (86), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:38:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2022-11-23 15:38:39,388 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 61 [2022-11-23 15:38:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:38:39,388 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2022-11-23 15:38:39,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 35 states have internal predecessors, (94), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:38:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2022-11-23 15:38:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 15:38:39,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:38:39,390 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:39,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2022-11-23 15:38:39,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2022-11-23 15:38:39,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2022-11-23 15:38:39,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:39,995 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 15:38:39,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:38:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1678173622, now seen corresponding path program 3 times [2022-11-23 15:38:39,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:38:39,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124746999] [2022-11-23 15:38:39,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:38:39,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:38:39,998 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:38:39,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-23 15:38:40,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-11-23 15:38:40,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-23 15:38:40,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:38:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:38:41,218 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:38:41,218 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:38:41,219 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (24 of 25 remaining) [2022-11-23 15:38:41,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (23 of 25 remaining) [2022-11-23 15:38:41,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (22 of 25 remaining) [2022-11-23 15:38:41,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 25 remaining) [2022-11-23 15:38:41,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 25 remaining) [2022-11-23 15:38:41,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 25 remaining) [2022-11-23 15:38:41,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 25 remaining) [2022-11-23 15:38:41,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 25 remaining) [2022-11-23 15:38:41,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 25 remaining) [2022-11-23 15:38:41,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 25 remaining) [2022-11-23 15:38:41,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 25 remaining) [2022-11-23 15:38:41,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 25 remaining) [2022-11-23 15:38:41,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 25 remaining) [2022-11-23 15:38:41,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 25 remaining) [2022-11-23 15:38:41,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 25 remaining) [2022-11-23 15:38:41,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 25 remaining) [2022-11-23 15:38:41,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 25 remaining) [2022-11-23 15:38:41,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 25 remaining) [2022-11-23 15:38:41,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 25 remaining) [2022-11-23 15:38:41,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr6ASSERT_VIOLATIONMEMORY_FREE (5 of 25 remaining) [2022-11-23 15:38:41,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE (4 of 25 remaining) [2022-11-23 15:38:41,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr8ASSERT_VIOLATIONMEMORY_FREE (3 of 25 remaining) [2022-11-23 15:38:41,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE (2 of 25 remaining) [2022-11-23 15:38:41,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE (1 of 25 remaining) [2022-11-23 15:38:41,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr11ASSERT_VIOLATIONMEMORY_FREE (0 of 25 remaining) [2022-11-23 15:38:41,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2022-11-23 15:38:41,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:38:41,450 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:38:41,454 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:38:41,467 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,470 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,470 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,470 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,471 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,471 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,474 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,474 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,475 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,475 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,475 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,476 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,476 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,477 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,478 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,479 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,481 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,482 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,483 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,484 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,484 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,485 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,485 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,492 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,493 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,493 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,493 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,494 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,494 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,494 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,494 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,495 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,495 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,495 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,495 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,496 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,496 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,496 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,496 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,497 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,497 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,502 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,502 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,502 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,503 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,503 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,503 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,503 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,504 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,504 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,504 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,504 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,505 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,505 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,505 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,505 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,506 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,506 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,506 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,506 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,507 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,518 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,519 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,519 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,519 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,520 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,520 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,520 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,520 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,520 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,521 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,521 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,521 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,521 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,522 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,522 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,522 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,522 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,523 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,523 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,523 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,523 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,524 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,524 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,524 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,524 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,524 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,525 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,525 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,525 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,525 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,526 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,526 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,540 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,540 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,541 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,541 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,541 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,541 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,541 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,542 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,542 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,542 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,542 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,542 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,543 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,543 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,543 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,543 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,543 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,543 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,544 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,544 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,544 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,544 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,544 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,546 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,546 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,546 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,546 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,547 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,551 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,551 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,552 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,552 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,552 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-23 15:38:41,552 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,553 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-23 15:38:41,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:38:41 BoogieIcfgContainer [2022-11-23 15:38:41,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:38:41,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:38:41,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:38:41,608 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:38:41,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:46" (3/4) ... [2022-11-23 15:38:41,612 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:38:41,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:38:41,613 INFO L158 Benchmark]: Toolchain (without parser) took 57272.64ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 41.6MB in the beginning and 81.7MB in the end (delta: -40.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-23 15:38:41,613 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:38:41,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 870.15ms. Allocated memory is still 71.3MB. Free memory was 41.4MB in the beginning and 36.0MB in the end (delta: 5.4MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-23 15:38:41,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.47ms. Allocated memory is still 71.3MB. Free memory was 36.0MB in the beginning and 33.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:38:41,614 INFO L158 Benchmark]: Boogie Preprocessor took 63.66ms. Allocated memory is still 71.3MB. Free memory was 33.2MB in the beginning and 30.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:38:41,614 INFO L158 Benchmark]: RCFGBuilder took 911.11ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 30.8MB in the beginning and 53.4MB in the end (delta: -22.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-23 15:38:41,615 INFO L158 Benchmark]: TraceAbstraction took 55324.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 52.5MB in the beginning and 82.7MB in the end (delta: -30.2MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2022-11-23 15:38:41,615 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 119.5MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:38:41,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 870.15ms. Allocated memory is still 71.3MB. Free memory was 41.4MB in the beginning and 36.0MB in the end (delta: 5.4MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.47ms. Allocated memory is still 71.3MB. Free memory was 36.0MB in the beginning and 33.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.66ms. Allocated memory is still 71.3MB. Free memory was 33.2MB in the beginning and 30.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 911.11ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 30.8MB in the beginning and 53.4MB in the end (delta: -22.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 55324.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 52.5MB in the beginning and 82.7MB in the end (delta: -30.2MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 119.5MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 769]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 769. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={1:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={1:0}, unknown-#in~size-unknown=16] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(*kobj))={2:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) VAL [#in~kref={2:12}, kref={2:12}, ldv_global_msg_list={1:0}] [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [#in~list={2:4}, ldv_global_msg_list={1:0}] [L540] list->next = list VAL [#in~list={2:4}, ldv_global_msg_list={1:0}, list={2:4}] [L541] list->prev = list VAL [#in~list={2:4}, ldv_global_msg_list={1:0}, list={2:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [#in~kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; VAL [\result={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, unknown-#in~i-unknown=1, v={2:12}] [L658] EXPR v->counter VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, unknown-#in~i-unknown=1, v={2:12}, v->counter=1] [L658] temp = v->counter [L659] temp += i VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, temp=2, unknown-#in~i-unknown=1, v={2:12}] [L660] v->counter = temp VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, temp=2, unknown-#in~i-unknown=1, v={2:12}] [L661] return temp; VAL [#in~v={2:12}, \result=2, i=1, ldv_global_msg_list={1:0}, temp=2, unknown-#in~i-unknown=1, v={2:12}] [L686] RET ldv_atomic_add_return(1, (&kref->refcount)) [L718] RET ldv_kref_get(&kobj->kref) [L719] return kobj; VAL [#in~kobj={2:0}, \result={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L758] RET ldv_kobject_get(kobj) [L766] RET f_22_get(kobj) [L767] CALL ldv_kobject_put(kobj) VAL [ldv_global_msg_list={1:0}] [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL, EXPR ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, unknown-#in~i-unknown=1, v={2:12}] [L666] EXPR v->counter VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, unknown-#in~i-unknown=1, v={2:12}, v->counter=2] [L666] temp = v->counter [L667] temp -= i VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, temp=1, unknown-#in~i-unknown=1, v={2:12}] [L668] v->counter = temp VAL [#in~v={2:12}, i=1, ldv_global_msg_list={1:0}, temp=1, unknown-#in~i-unknown=1, v={2:12}] [L669] return temp; VAL [#in~v={2:12}, \result=1, i=1, ldv_global_msg_list={1:0}, temp=1, unknown-#in~i-unknown=1, v={2:12}] [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND FALSE !((ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0)) [L678] return 0; VAL [#in~kref={2:12}, #in~release={-1:0}, \result=0, count=1, kref={2:12}, ldv_global_msg_list={1:0}, release={-1:0}, unknown-#in~count-unknown=1] [L690] RET, EXPR ldv_kref_sub(kref, 1, release) [L690] return ldv_kref_sub(kref, 1, release); [L712] RET ldv_kref_put(&kobj->kref, ldv_kobject_release) [L767] RET ldv_kobject_put(kobj) VAL [kobj={2:0}, ldv_global_msg_list={1:0}] [L770] RET entry_point() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 55.1s, OverallIterations: 27, TraceHistogramMax: 16, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2356 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2345 mSDsluCounter, 10644 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8617 mSDsCounter, 227 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3383 IncrementalHoareTripleChecker+Invalid, 3610 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 227 mSolverCounterUnsat, 2027 mSDtfsCounter, 3383 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3058 GetRequests, 2615 SyntacticMatches, 6 SemanticMatches, 437 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2656 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=9, InterpolantAutomatonStates: 237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 26 MinimizatonAttempts, 301 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 6.4s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 1915 NumberOfCodeBlocks, 1911 NumberOfCodeBlocksAsserted, 67 NumberOfCheckSat, 2978 ConstructedInterpolants, 30 QuantifiedInterpolants, 7728 SizeOfPredicates, 257 NumberOfNonLiveVariables, 10599 ConjunctsInSsa, 576 ConjunctsInUnsatCore, 87 InterpolantComputations, 23 PerfectInterpolantSequences, 141/961 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:38:41,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b61af7f-cc20-4c1d-9ed1-6ce2c0738546/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample