./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 03499c01c9320e6c56c78c984f54a0b0b3f62caee089ccaa631f137e86019454 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:24:20,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:24:20,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:24:20,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:24:20,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:24:20,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:24:20,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:24:20,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:24:20,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:24:20,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:24:20,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:24:20,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:24:20,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:24:20,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:24:20,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:24:20,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:24:20,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:24:20,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:24:20,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:24:20,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:24:20,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:24:20,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:24:20,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:24:20,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:24:20,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:24:20,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:24:20,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:24:20,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:24:20,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:24:20,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:24:20,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:24:20,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:24:20,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:24:20,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:24:20,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:24:20,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:24:20,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:24:20,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:24:20,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:24:20,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:24:20,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:24:20,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 07:24:20,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:24:20,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:24:20,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:24:20,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:24:20,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:24:20,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:24:20,081 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:24:20,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:24:20,081 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:24:20,082 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:24:20,082 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:24:20,082 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:24:20,082 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:24:20,082 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:24:20,082 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:24:20,083 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:24:20,083 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:24:20,083 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:24:20,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:24:20,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:24:20,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:24:20,084 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:24:20,084 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:24:20,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:24:20,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:24:20,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:24:20,085 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:24:20,085 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:24:20,085 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:24:20,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:24:20,085 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:24:20,085 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:24:20,086 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:24:20,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:24:20,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:24:20,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:24:20,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:24:20,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:24:20,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:24:20,087 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:24:20,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:24:20,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:24:20,087 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_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03499c01c9320e6c56c78c984f54a0b0b3f62caee089ccaa631f137e86019454 [2022-12-14 07:24:20,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:24:20,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:24:20,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:24:20,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:24:20,264 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:24:20,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i [2022-12-14 07:24:22,910 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:24:23,136 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:24:23,137 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i [2022-12-14 07:24:23,149 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data/a95e6c055/af38906bcf68411c87fc6bbc9986162c/FLAG73fe1fd96 [2022-12-14 07:24:23,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data/a95e6c055/af38906bcf68411c87fc6bbc9986162c [2022-12-14 07:24:23,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:24:23,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:24:23,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:24:23,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:24:23,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:24:23,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:24:23" (1/1) ... [2022-12-14 07:24:23,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5227e102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:23, skipping insertion in model container [2022-12-14 07:24:23,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:24:23" (1/1) ... [2022-12-14 07:24:23,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:24:23,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:24:23,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:24:23,489 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) [2022-12-14 07:24:23,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cf5205b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:23, skipping insertion in model container [2022-12-14 07:24:23,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:24:23,489 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 07:24:23,490 INFO L158 Benchmark]: Toolchain (without parser) took 325.57ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 99.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:24:23,491 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 151.0MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:24:23,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.70ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 99.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:24:23,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 151.0MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.70ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 99.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 03499c01c9320e6c56c78c984f54a0b0b3f62caee089ccaa631f137e86019454 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:24:24,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:24:24,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:24:24,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:24:24,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:24:24,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:24:24,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:24:24,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:24:24,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:24:24,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:24:24,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:24:24,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:24:24,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:24:24,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:24:24,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:24:24,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:24:24,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:24:24,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:24:24,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:24:24,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:24:24,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:24:24,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:24:24,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:24:24,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:24:24,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:24:24,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:24:24,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:24:24,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:24:24,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:24:24,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:24:24,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:24:24,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:24:24,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:24:24,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:24:24,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:24:24,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:24:24,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:24:24,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:24:24,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:24:24,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:24:24,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:24:24,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 07:24:24,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:24:24,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:24:24,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:24:24,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:24:24,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:24:24,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:24:24,860 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:24:24,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:24:24,861 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:24:24,861 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:24:24,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:24:24,861 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:24:24,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:24:24,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:24:24,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:24:24,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:24:24,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:24:24,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:24:24,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:24:24,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:24:24,864 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:24:24,864 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:24:24,864 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:24:24,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:24:24,865 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:24:24,865 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:24:24,865 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:24:24,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:24:24,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:24:24,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:24:24,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:24:24,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:24:24,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:24:24,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:24:24,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:24:24,867 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:24:24,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:24:24,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:24:24,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:24:24,867 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_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03499c01c9320e6c56c78c984f54a0b0b3f62caee089ccaa631f137e86019454 [2022-12-14 07:24:25,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:24:25,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:24:25,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:24:25,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:24:25,116 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:24:25,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i [2022-12-14 07:24:27,744 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:24:27,978 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:24:27,978 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/sv-benchmarks/c/ldv-memsafety/memleaks_test23_1.i [2022-12-14 07:24:27,991 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data/d453b1e88/94fd161d3f4e45e1a922614df5852736/FLAG15be8a6b3 [2022-12-14 07:24:28,005 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/data/d453b1e88/94fd161d3f4e45e1a922614df5852736 [2022-12-14 07:24:28,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:24:28,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:24:28,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:24:28,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:24:28,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:24:28,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f9d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28, skipping insertion in model container [2022-12-14 07:24:28,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:24:28,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:24:28,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:24:28,409 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 07:24:28,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:24:28,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:24:28,479 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:24:28,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:24:28,542 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:24:28,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28 WrapperNode [2022-12-14 07:24:28,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:24:28,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:24:28,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:24:28,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:24:28,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,582 INFO L138 Inliner]: procedures = 175, calls = 119, calls flagged for inlining = 30, calls inlined = 15, statements flattened = 198 [2022-12-14 07:24:28,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:24:28,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:24:28,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:24:28,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:24:28,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:24:28,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:24:28,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:24:28,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:24:28,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (1/1) ... [2022-12-14 07:24:28,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:24:28,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:24:28,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:24:28,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:24:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 07:24:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-12-14 07:24:28,674 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-12-14 07:24:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-12-14 07:24:28,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-12-14 07:24:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:24:28,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:24:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure free_reports [2022-12-14 07:24:28,675 INFO L138 BoogieDeclarations]: Found implementation of procedure free_reports [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:24:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:24:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2022-12-14 07:24:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2022-12-14 07:24:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 07:24:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 07:24:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:24:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:24:28,813 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:24:28,815 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:24:29,437 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:24:29,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:24:29,444 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 07:24:29,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:24:29 BoogieIcfgContainer [2022-12-14 07:24:29,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:24:29,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:24:29,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:24:29,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:24:29,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:24:28" (1/3) ... [2022-12-14 07:24:29,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648f7f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:24:29, skipping insertion in model container [2022-12-14 07:24:29,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:28" (2/3) ... [2022-12-14 07:24:29,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648f7f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:24:29, skipping insertion in model container [2022-12-14 07:24:29,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:24:29" (3/3) ... [2022-12-14 07:24:29,458 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test23_1.i [2022-12-14 07:24:29,476 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:24:29,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2022-12-14 07:24:29,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:24:29,527 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;@11cf75cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:24:29,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-12-14 07:24:29,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 111 states have (on average 1.8468468468468469) internal successors, (205), 190 states have internal predecessors, (205), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 07:24:29,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:24:29,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:29,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:29,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:29,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:29,547 INFO L85 PathProgramCache]: Analyzing trace with hash 441980658, now seen corresponding path program 1 times [2022-12-14 07:24:29,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:29,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179754418] [2022-12-14 07:24:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:29,561 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 [2022-12-14 07:24:29,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:29,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:29,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:29,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:24:29,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:29,720 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 [2022-12-14 07:24:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:29,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:29,781 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:29,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179754418] [2022-12-14 07:24:29,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179754418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:29,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:29,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:24:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015385029] [2022-12-14 07:24:29,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:29,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:24:29,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:24:29,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:24:29,822 INFO L87 Difference]: Start difference. First operand has 205 states, 111 states have (on average 1.8468468468468469) internal successors, (205), 190 states have internal predecessors, (205), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-12-14 07:24:30,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:30,550 INFO L93 Difference]: Finished difference Result 232 states and 249 transitions. [2022-12-14 07:24:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:24:30,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 12 [2022-12-14 07:24:30,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:30,558 INFO L225 Difference]: With dead ends: 232 [2022-12-14 07:24:30,558 INFO L226 Difference]: Without dead ends: 228 [2022-12-14 07:24:30,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:24:30,562 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 28 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:30,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 851 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 07:24:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-12-14 07:24:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212. [2022-12-14 07:24:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 117 states have (on average 1.794871794871795) internal successors, (210), 195 states have internal predecessors, (210), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-12-14 07:24:30,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 229 transitions. [2022-12-14 07:24:30,599 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 229 transitions. Word has length 12 [2022-12-14 07:24:30,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:30,599 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 229 transitions. [2022-12-14 07:24:30,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-12-14 07:24:30,599 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 229 transitions. [2022-12-14 07:24:30,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:24:30,600 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:30,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:30,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 07:24:30,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:30,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash 441980659, now seen corresponding path program 1 times [2022-12-14 07:24:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:30,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063589830] [2022-12-14 07:24:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:30,807 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 [2022-12-14 07:24:30,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:30,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:30,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:30,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 07:24:30,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:30,986 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 [2022-12-14 07:24:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:31,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:31,074 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:31,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063589830] [2022-12-14 07:24:31,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063589830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:31,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:31,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:24:31,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802001719] [2022-12-14 07:24:31,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:31,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:24:31,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:31,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:24:31,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:24:31,077 INFO L87 Difference]: Start difference. First operand 212 states and 229 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-12-14 07:24:31,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:31,747 INFO L93 Difference]: Finished difference Result 237 states and 253 transitions. [2022-12-14 07:24:31,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:24:31,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 12 [2022-12-14 07:24:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:31,749 INFO L225 Difference]: With dead ends: 237 [2022-12-14 07:24:31,750 INFO L226 Difference]: Without dead ends: 237 [2022-12-14 07:24:31,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:24:31,751 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 35 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:31,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1102 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 07:24:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-12-14 07:24:31,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 212. [2022-12-14 07:24:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 195 states have internal predecessors, (208), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-12-14 07:24:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 227 transitions. [2022-12-14 07:24:31,763 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 227 transitions. Word has length 12 [2022-12-14 07:24:31,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:31,764 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 227 transitions. [2022-12-14 07:24:31,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-12-14 07:24:31,764 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 227 transitions. [2022-12-14 07:24:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:24:31,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:31,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:31,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:31,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:31,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:31,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2110176303, now seen corresponding path program 1 times [2022-12-14 07:24:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:31,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070381649] [2022-12-14 07:24:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:31,970 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 [2022-12-14 07:24:31,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:31,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:32,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:32,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:24:32,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:32,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:32,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:32,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070381649] [2022-12-14 07:24:32,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070381649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:32,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:32,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:24:32,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246662216] [2022-12-14 07:24:32,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:32,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:24:32,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:32,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:24:32,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:24:32,121 INFO L87 Difference]: Start difference. First operand 212 states and 227 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-14 07:24:32,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:32,152 INFO L93 Difference]: Finished difference Result 224 states and 239 transitions. [2022-12-14 07:24:32,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:24:32,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 12 [2022-12-14 07:24:32,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:32,154 INFO L225 Difference]: With dead ends: 224 [2022-12-14 07:24:32,154 INFO L226 Difference]: Without dead ends: 224 [2022-12-14 07:24:32,154 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 [2022-12-14 07:24:32,155 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 20 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:32,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 844 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:24:32,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-12-14 07:24:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 203. [2022-12-14 07:24:32,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 113 states have (on average 1.7699115044247788) internal successors, (200), 187 states have internal predecessors, (200), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-14 07:24:32,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2022-12-14 07:24:32,167 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 12 [2022-12-14 07:24:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:32,167 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2022-12-14 07:24:32,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-14 07:24:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2022-12-14 07:24:32,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:24:32,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:32,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:32,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:32,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:32,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:32,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:32,372 INFO L85 PathProgramCache]: Analyzing trace with hash 441895411, now seen corresponding path program 1 times [2022-12-14 07:24:32,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:32,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962292922] [2022-12-14 07:24:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:32,374 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 [2022-12-14 07:24:32,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:32,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:32,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:32,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:24:32,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:32,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:32,482 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:32,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962292922] [2022-12-14 07:24:32,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962292922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:32,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:32,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:24:32,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745651740] [2022-12-14 07:24:32,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:32,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:24:32,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:24:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:24:32,484 INFO L87 Difference]: Start difference. First operand 203 states and 217 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) [2022-12-14 07:24:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:32,516 INFO L93 Difference]: Finished difference Result 224 states and 238 transitions. [2022-12-14 07:24:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:24:32,516 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 [2022-12-14 07:24:32,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:32,517 INFO L225 Difference]: With dead ends: 224 [2022-12-14 07:24:32,517 INFO L226 Difference]: Without dead ends: 224 [2022-12-14 07:24:32,517 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 [2022-12-14 07:24:32,518 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 129 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:32,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 774 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:24:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-12-14 07:24:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 203. [2022-12-14 07:24:32,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 113 states have (on average 1.761061946902655) internal successors, (199), 187 states have internal predecessors, (199), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-14 07:24:32,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 216 transitions. [2022-12-14 07:24:32,528 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 216 transitions. Word has length 12 [2022-12-14 07:24:32,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:32,528 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 216 transitions. [2022-12-14 07:24:32,528 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) [2022-12-14 07:24:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 216 transitions. [2022-12-14 07:24:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:24:32,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:32,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:32,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:32,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:32,731 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:32,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2110261550, now seen corresponding path program 1 times [2022-12-14 07:24:32,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:32,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510298079] [2022-12-14 07:24:32,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:32,734 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 [2022-12-14 07:24:32,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:32,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:32,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:32,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:24:32,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:32,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:32,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:32,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510298079] [2022-12-14 07:24:32,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510298079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:32,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:32,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:24:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60282304] [2022-12-14 07:24:32,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:32,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:24:32,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:32,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:24:32,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:24:32,830 INFO L87 Difference]: Start difference. First operand 203 states and 216 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-12-14 07:24:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:32,860 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2022-12-14 07:24:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:24:32,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2022-12-14 07:24:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:32,861 INFO L225 Difference]: With dead ends: 208 [2022-12-14 07:24:32,861 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 07:24:32,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:24:32,862 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 112 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:32,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 726 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:24:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 07:24:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 205. [2022-12-14 07:24:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 115 states have (on average 1.7478260869565216) internal successors, (201), 189 states have internal predecessors, (201), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-14 07:24:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions. [2022-12-14 07:24:32,867 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 12 [2022-12-14 07:24:32,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:32,867 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 218 transitions. [2022-12-14 07:24:32,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-12-14 07:24:32,867 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions. [2022-12-14 07:24:32,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:24:32,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:32,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:32,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:33,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:33,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash -993578524, now seen corresponding path program 1 times [2022-12-14 07:24:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:33,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17715250] [2022-12-14 07:24:33,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:33,069 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 [2022-12-14 07:24:33,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:33,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:33,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:33,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:24:33,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:33,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:33,127 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17715250] [2022-12-14 07:24:33,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17715250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:33,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:33,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:24:33,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416378847] [2022-12-14 07:24:33,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:24:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:33,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:24:33,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:24:33,132 INFO L87 Difference]: Start difference. First operand 205 states and 218 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 07:24:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:33,435 INFO L93 Difference]: Finished difference Result 217 states and 232 transitions. [2022-12-14 07:24:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:24:33,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-12-14 07:24:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:33,436 INFO L225 Difference]: With dead ends: 217 [2022-12-14 07:24:33,436 INFO L226 Difference]: Without dead ends: 209 [2022-12-14 07:24:33,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:24:33,437 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 51 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:33,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 386 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 07:24:33,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-14 07:24:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 199. [2022-12-14 07:24:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 110 states have (on average 1.7727272727272727) internal successors, (195), 184 states have internal predecessors, (195), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 07:24:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 211 transitions. [2022-12-14 07:24:33,445 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 211 transitions. Word has length 13 [2022-12-14 07:24:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:33,445 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 211 transitions. [2022-12-14 07:24:33,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 07:24:33,445 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 211 transitions. [2022-12-14 07:24:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 07:24:33,445 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:33,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:33,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:33,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:33,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:33,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:33,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1907571031, now seen corresponding path program 1 times [2022-12-14 07:24:33,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:33,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137975360] [2022-12-14 07:24:33,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:33,650 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 [2022-12-14 07:24:33,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:33,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:33,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:33,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 07:24:33,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:33,799 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_23 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_23))))) is different from true [2022-12-14 07:24:33,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:24:33,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:24:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:33,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:33,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:33,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137975360] [2022-12-14 07:24:33,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137975360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:33,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:33,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:24:33,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882081544] [2022-12-14 07:24:33,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:33,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:24:33,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:33,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:24:33,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2022-12-14 07:24:33,880 INFO L87 Difference]: Start difference. First operand 199 states and 211 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 07:24:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:34,732 INFO L93 Difference]: Finished difference Result 250 states and 265 transitions. [2022-12-14 07:24:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:24:34,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-12-14 07:24:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:34,733 INFO L225 Difference]: With dead ends: 250 [2022-12-14 07:24:34,734 INFO L226 Difference]: Without dead ends: 250 [2022-12-14 07:24:34,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=76, Unknown=1, NotChecked=18, Total=132 [2022-12-14 07:24:34,734 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 539 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:34,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 215 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 533 Invalid, 0 Unknown, 263 Unchecked, 0.8s Time] [2022-12-14 07:24:34,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-14 07:24:34,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 208. [2022-12-14 07:24:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 119 states have (on average 1.7478991596638656) internal successors, (208), 192 states have internal predecessors, (208), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-12-14 07:24:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 226 transitions. [2022-12-14 07:24:34,742 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 226 transitions. Word has length 16 [2022-12-14 07:24:34,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:34,742 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 226 transitions. [2022-12-14 07:24:34,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 07:24:34,742 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 226 transitions. [2022-12-14 07:24:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 07:24:34,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:34,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:34,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:34,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:34,945 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:34,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:34,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1544157348, now seen corresponding path program 1 times [2022-12-14 07:24:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:34,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456538297] [2022-12-14 07:24:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:34,948 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 [2022-12-14 07:24:34,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:34,951 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:34,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (9)] Waiting until timeout for monitored process [2022-12-14 07:24:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:35,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 07:24:35,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:35,139 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 [2022-12-14 07:24:35,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:35,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:35,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:35,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456538297] [2022-12-14 07:24:35,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456538297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:35,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:35,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:24:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110712651] [2022-12-14 07:24:35,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:35,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:24:35,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:35,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:24:35,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:24:35,171 INFO L87 Difference]: Start difference. First operand 208 states and 226 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:35,731 INFO L93 Difference]: Finished difference Result 264 states and 290 transitions. [2022-12-14 07:24:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:24:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-12-14 07:24:35,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:35,734 INFO L225 Difference]: With dead ends: 264 [2022-12-14 07:24:35,734 INFO L226 Difference]: Without dead ends: 264 [2022-12-14 07:24:35,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:24:35,735 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 71 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:35,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 653 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:24:35,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-12-14 07:24:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 236. [2022-12-14 07:24:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 149 states have (on average 1.7718120805369129) internal successors, (264), 220 states have internal predecessors, (264), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-12-14 07:24:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 282 transitions. [2022-12-14 07:24:35,742 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 282 transitions. Word has length 25 [2022-12-14 07:24:35,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:35,742 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 282 transitions. [2022-12-14 07:24:35,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 282 transitions. [2022-12-14 07:24:35,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 07:24:35,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:35,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:35,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (9)] Forceful destruction successful, exit code 0 [2022-12-14 07:24:35,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:35,944 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:35,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:35,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1544157349, now seen corresponding path program 1 times [2022-12-14 07:24:35,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:35,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473756674] [2022-12-14 07:24:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:35,947 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 [2022-12-14 07:24:35,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:35,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:35,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (10)] Waiting until timeout for monitored process [2022-12-14 07:24:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:36,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 07:24:36,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:36,119 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 [2022-12-14 07:24:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:36,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:36,179 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:36,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473756674] [2022-12-14 07:24:36,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473756674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:36,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:36,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:24:36,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853894548] [2022-12-14 07:24:36,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:36,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:24:36,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:36,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:24:36,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:24:36,180 INFO L87 Difference]: Start difference. First operand 236 states and 282 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:36,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:36,943 INFO L93 Difference]: Finished difference Result 296 states and 325 transitions. [2022-12-14 07:24:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:24:36,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-12-14 07:24:36,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:36,946 INFO L225 Difference]: With dead ends: 296 [2022-12-14 07:24:36,946 INFO L226 Difference]: Without dead ends: 296 [2022-12-14 07:24:36,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:24:36,947 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 105 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:36,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 651 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 07:24:36,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-12-14 07:24:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 238. [2022-12-14 07:24:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 152 states have (on average 1.75) internal successors, (266), 221 states have internal predecessors, (266), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 287 transitions. [2022-12-14 07:24:36,952 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 287 transitions. Word has length 25 [2022-12-14 07:24:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:36,952 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 287 transitions. [2022-12-14 07:24:36,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:36,952 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 287 transitions. [2022-12-14 07:24:36,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 07:24:36,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:36,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:36,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (10)] Forceful destruction successful, exit code 0 [2022-12-14 07:24:37,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:37,153 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2123399988, now seen corresponding path program 1 times [2022-12-14 07:24:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:37,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965500268] [2022-12-14 07:24:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:37,154 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 [2022-12-14 07:24:37,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:37,155 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:37,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:37,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:24:37,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:37,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:37,243 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:37,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965500268] [2022-12-14 07:24:37,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965500268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:37,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:37,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:24:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465975933] [2022-12-14 07:24:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:37,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:24:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:24:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:24:37,244 INFO L87 Difference]: Start difference. First operand 238 states and 287 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:37,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:37,321 INFO L93 Difference]: Finished difference Result 238 states and 286 transitions. [2022-12-14 07:24:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:24:37,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-14 07:24:37,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:37,323 INFO L225 Difference]: With dead ends: 238 [2022-12-14 07:24:37,323 INFO L226 Difference]: Without dead ends: 238 [2022-12-14 07:24:37,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:24:37,324 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 120 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:37,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 832 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:24:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-12-14 07:24:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-12-14 07:24:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 152 states have (on average 1.743421052631579) internal successors, (265), 221 states have internal predecessors, (265), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 286 transitions. [2022-12-14 07:24:37,329 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 286 transitions. Word has length 27 [2022-12-14 07:24:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:37,333 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 286 transitions. [2022-12-14 07:24:37,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 286 transitions. [2022-12-14 07:24:37,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 07:24:37,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:37,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:37,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:37,536 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:37,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:37,538 INFO L85 PathProgramCache]: Analyzing trace with hash -308565232, now seen corresponding path program 1 times [2022-12-14 07:24:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:37,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700433709] [2022-12-14 07:24:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:37,539 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 [2022-12-14 07:24:37,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:37,542 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:37,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Waiting until timeout for monitored process [2022-12-14 07:24:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:37,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 07:24:37,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:37,720 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 [2022-12-14 07:24:37,761 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 07:24:37,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:24:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:37,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:37,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:37,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700433709] [2022-12-14 07:24:37,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700433709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:37,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:37,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:24:37,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164378728] [2022-12-14 07:24:37,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:37,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:24:37,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:37,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:24:37,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:24:37,808 INFO L87 Difference]: Start difference. First operand 238 states and 286 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 07:24:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:38,503 INFO L93 Difference]: Finished difference Result 250 states and 294 transitions. [2022-12-14 07:24:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:24:38,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-12-14 07:24:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:38,505 INFO L225 Difference]: With dead ends: 250 [2022-12-14 07:24:38,505 INFO L226 Difference]: Without dead ends: 250 [2022-12-14 07:24:38,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:24:38,506 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 201 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:38,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 580 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 07:24:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-14 07:24:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 233. [2022-12-14 07:24:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 152 states have (on average 1.6776315789473684) internal successors, (255), 216 states have internal predecessors, (255), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 276 transitions. [2022-12-14 07:24:38,515 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 276 transitions. Word has length 33 [2022-12-14 07:24:38,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:38,516 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 276 transitions. [2022-12-14 07:24:38,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 07:24:38,516 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 276 transitions. [2022-12-14 07:24:38,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 07:24:38,517 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:38,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:38,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 07:24:38,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:38,718 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:38,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:38,732 INFO L85 PathProgramCache]: Analyzing trace with hash -308565231, now seen corresponding path program 1 times [2022-12-14 07:24:38,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:38,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007579998] [2022-12-14 07:24:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:38,734 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 [2022-12-14 07:24:38,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:38,737 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:38,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (13)] Waiting until timeout for monitored process [2022-12-14 07:24:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:38,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 07:24:38,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:38,879 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 [2022-12-14 07:24:38,884 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 [2022-12-14 07:24:38,915 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (exists ((v_ArrVal_198 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_198))) (= (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|) (_ bv0 1)))) is different from true [2022-12-14 07:24:38,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:24:38,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:24:38,947 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:24:38,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:24:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:39,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:39,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:39,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007579998] [2022-12-14 07:24:39,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007579998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:39,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:39,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:24:39,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660136022] [2022-12-14 07:24:39,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:39,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:24:39,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:39,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:24:39,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2022-12-14 07:24:39,007 INFO L87 Difference]: Start difference. First operand 233 states and 276 transitions. Second operand has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 07:24:39,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:39,758 INFO L93 Difference]: Finished difference Result 310 states and 341 transitions. [2022-12-14 07:24:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:24:39,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-12-14 07:24:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:39,760 INFO L225 Difference]: With dead ends: 310 [2022-12-14 07:24:39,760 INFO L226 Difference]: Without dead ends: 310 [2022-12-14 07:24:39,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=37, Unknown=1, NotChecked=12, Total=72 [2022-12-14 07:24:39,760 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 254 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 246 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:39,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 394 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 403 Invalid, 0 Unknown, 246 Unchecked, 0.7s Time] [2022-12-14 07:24:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-12-14 07:24:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 233. [2022-12-14 07:24:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 152 states have (on average 1.644736842105263) internal successors, (250), 216 states have internal predecessors, (250), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 271 transitions. [2022-12-14 07:24:39,765 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 271 transitions. Word has length 33 [2022-12-14 07:24:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:39,765 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 271 transitions. [2022-12-14 07:24:39,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 07:24:39,765 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 271 transitions. [2022-12-14 07:24:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 07:24:39,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:39,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:39,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (13)] Ended with exit code 0 [2022-12-14 07:24:39,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:39,967 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:39,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1238063083, now seen corresponding path program 1 times [2022-12-14 07:24:39,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:39,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554090215] [2022-12-14 07:24:39,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:39,970 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 [2022-12-14 07:24:39,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:39,971 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:39,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:40,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 07:24:40,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:40,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:40,359 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:40,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554090215] [2022-12-14 07:24:40,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554090215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:40,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:40,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:24:40,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349464691] [2022-12-14 07:24:40,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:40,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:24:40,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:24:40,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:24:40,361 INFO L87 Difference]: Start difference. First operand 233 states and 271 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 07:24:40,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:40,758 INFO L93 Difference]: Finished difference Result 231 states and 268 transitions. [2022-12-14 07:24:40,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:24:40,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-12-14 07:24:40,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:40,760 INFO L225 Difference]: With dead ends: 231 [2022-12-14 07:24:40,760 INFO L226 Difference]: Without dead ends: 231 [2022-12-14 07:24:40,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:24:40,761 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 410 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:40,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 707 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 07:24:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-14 07:24:40,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-12-14 07:24:40,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 152 states have (on average 1.625) internal successors, (247), 214 states have internal predecessors, (247), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:40,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 268 transitions. [2022-12-14 07:24:40,764 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 268 transitions. Word has length 36 [2022-12-14 07:24:40,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:40,765 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 268 transitions. [2022-12-14 07:24:40,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 07:24:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 268 transitions. [2022-12-14 07:24:40,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 07:24:40,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:40,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:40,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:40,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:40,966 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONARRAY_INDEX === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:40,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:40,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1238063271, now seen corresponding path program 1 times [2022-12-14 07:24:40,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:40,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455968734] [2022-12-14 07:24:40,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:40,967 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 [2022-12-14 07:24:40,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:40,967 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:40,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:41,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:24:41,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:41,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:41,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:41,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455968734] [2022-12-14 07:24:41,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455968734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:41,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:41,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:24:41,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128554128] [2022-12-14 07:24:41,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:41,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:24:41,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:41,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:24:41,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:24:41,082 INFO L87 Difference]: Start difference. First operand 231 states and 268 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:41,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:41,099 INFO L93 Difference]: Finished difference Result 272 states and 312 transitions. [2022-12-14 07:24:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:24:41,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-12-14 07:24:41,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:41,100 INFO L225 Difference]: With dead ends: 272 [2022-12-14 07:24:41,100 INFO L226 Difference]: Without dead ends: 272 [2022-12-14 07:24:41,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:24:41,101 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 36 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:41,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 583 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:24:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-12-14 07:24:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 235. [2022-12-14 07:24:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 156 states have (on average 1.608974358974359) internal successors, (251), 218 states have internal predecessors, (251), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 272 transitions. [2022-12-14 07:24:41,105 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 272 transitions. Word has length 36 [2022-12-14 07:24:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:41,105 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 272 transitions. [2022-12-14 07:24:41,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 272 transitions. [2022-12-14 07:24:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 07:24:41,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:41,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:41,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:24:41,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:41,307 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:41,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:41,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1119933624, now seen corresponding path program 1 times [2022-12-14 07:24:41,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399474917] [2022-12-14 07:24:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:41,308 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 [2022-12-14 07:24:41,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:41,309 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:41,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:41,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:24:41,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:41,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:41,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:41,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399474917] [2022-12-14 07:24:41,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399474917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:41,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:41,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:24:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65712448] [2022-12-14 07:24:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:41,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:24:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:24:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:24:41,418 INFO L87 Difference]: Start difference. First operand 235 states and 272 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:41,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:24:41,435 INFO L93 Difference]: Finished difference Result 258 states and 297 transitions. [2022-12-14 07:24:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:24:41,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-12-14 07:24:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:24:41,437 INFO L225 Difference]: With dead ends: 258 [2022-12-14 07:24:41,437 INFO L226 Difference]: Without dead ends: 258 [2022-12-14 07:24:41,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:24:41,437 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 43 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:24:41,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 581 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:24:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-12-14 07:24:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 237. [2022-12-14 07:24:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 158 states have (on average 1.6012658227848102) internal successors, (253), 220 states have internal predecessors, (253), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:24:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 274 transitions. [2022-12-14 07:24:41,442 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 274 transitions. Word has length 40 [2022-12-14 07:24:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:24:41,443 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 274 transitions. [2022-12-14 07:24:41,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:24:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 274 transitions. [2022-12-14 07:24:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 07:24:41,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:24:41,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:24:41,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:41,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:41,645 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:24:41,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:24:41,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1780653040, now seen corresponding path program 1 times [2022-12-14 07:24:41,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:24:41,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661283042] [2022-12-14 07:24:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:41,648 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 [2022-12-14 07:24:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:24:41,651 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:24:41,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:24:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:41,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 07:24:41,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:24:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:24:41,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:24:41,969 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-14 07:24:41,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 07:24:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:24:42,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:24:42,302 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:24:42,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:24:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:24:42,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:24:42,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:42,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661283042] [2022-12-14 07:24:42,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661283042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:24:42,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:24:42,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 07:24:42,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96363180] [2022-12-14 07:24:42,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:24:42,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 07:24:42,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:24:42,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 07:24:42,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=106, Unknown=1, NotChecked=0, Total=132 [2022-12-14 07:24:42,459 INFO L87 Difference]: Start difference. First operand 237 states and 274 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:24:45,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:24:49,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:24:51,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:24:53,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:24:55,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:24:57,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:00,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:02,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:04,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:06,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:08,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:09,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:11,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:13,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:16,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:18,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:18,262 INFO L93 Difference]: Finished difference Result 281 states and 314 transitions. [2022-12-14 07:25:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 07:25:18,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2022-12-14 07:25:18,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:18,264 INFO L225 Difference]: With dead ends: 281 [2022-12-14 07:25:18,264 INFO L226 Difference]: Without dead ends: 281 [2022-12-14 07:25:18,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=98, Invalid=361, Unknown=3, NotChecked=0, Total=462 [2022-12-14 07:25:18,264 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 458 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 62 mSolverCounterUnsat, 59 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 59 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:18,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 447 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1103 Invalid, 59 Unknown, 0 Unchecked, 33.4s Time] [2022-12-14 07:25:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-12-14 07:25:18,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 235. [2022-12-14 07:25:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 218 states have internal predecessors, (251), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-12-14 07:25:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 272 transitions. [2022-12-14 07:25:18,268 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 272 transitions. Word has length 42 [2022-12-14 07:25:18,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:18,268 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 272 transitions. [2022-12-14 07:25:18,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 272 transitions. [2022-12-14 07:25:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 07:25:18,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:18,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:18,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:18,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:18,469 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:18,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:18,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1780653039, now seen corresponding path program 1 times [2022-12-14 07:25:18,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:18,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107733560] [2022-12-14 07:25:18,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:18,470 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 [2022-12-14 07:25:18,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:18,471 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:18,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (18)] Waiting until timeout for monitored process [2022-12-14 07:25:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:18,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 07:25:18,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:18,715 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:25:18,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:25:18,954 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 07:25:18,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 24 [2022-12-14 07:25:19,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-14 07:25:19,120 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 07:25:19,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 07:25:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:19,577 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 07:25:19,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 31 [2022-12-14 07:25:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:19,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:19,647 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:19,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107733560] [2022-12-14 07:25:19,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107733560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:19,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:19,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 07:25:19,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80541173] [2022-12-14 07:25:19,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:19,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 07:25:19,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 07:25:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-14 07:25:19,649 INFO L87 Difference]: Start difference. First operand 235 states and 272 transitions. Second operand has 16 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:22,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:26,918 INFO L93 Difference]: Finished difference Result 337 states and 374 transitions. [2022-12-14 07:25:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 07:25:26,919 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2022-12-14 07:25:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:26,920 INFO L225 Difference]: With dead ends: 337 [2022-12-14 07:25:26,920 INFO L226 Difference]: Without dead ends: 337 [2022-12-14 07:25:26,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=174, Invalid=756, Unknown=0, NotChecked=0, Total=930 [2022-12-14 07:25:26,921 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1046 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 106 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:26,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 798 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1304 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 07:25:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-12-14 07:25:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 257. [2022-12-14 07:25:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 178 states have (on average 1.5730337078651686) internal successors, (280), 236 states have internal predecessors, (280), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 07:25:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2022-12-14 07:25:26,927 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 42 [2022-12-14 07:25:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:26,927 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2022-12-14 07:25:26,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2022-12-14 07:25:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 07:25:26,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:26,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:26,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (18)] Ended with exit code 0 [2022-12-14 07:25:27,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:27,129 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONARRAY_INDEX === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:27,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:27,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1855865600, now seen corresponding path program 1 times [2022-12-14 07:25:27,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:27,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915880901] [2022-12-14 07:25:27,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:27,132 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 [2022-12-14 07:25:27,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:27,135 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:27,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:27,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 07:25:27,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:27,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:27,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:27,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:27,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2022-12-14 07:25:27,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-12-14 07:25:27,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-12-14 07:25:27,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-12-14 07:25:27,577 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:25:27,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 14 [2022-12-14 07:25:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:27,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:27,599 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:27,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915880901] [2022-12-14 07:25:27,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915880901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:27,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:27,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:25:27,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529834742] [2022-12-14 07:25:27,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:27,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:25:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:27,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:25:27,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:25:27,600 INFO L87 Difference]: Start difference. First operand 257 states and 304 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:27,998 INFO L93 Difference]: Finished difference Result 283 states and 334 transitions. [2022-12-14 07:25:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:25:27,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-12-14 07:25:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:27,999 INFO L225 Difference]: With dead ends: 283 [2022-12-14 07:25:28,000 INFO L226 Difference]: Without dead ends: 283 [2022-12-14 07:25:28,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:25:28,000 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 205 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:28,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 589 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 07:25:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-12-14 07:25:28,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 256. [2022-12-14 07:25:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 178 states have (on average 1.5617977528089888) internal successors, (278), 235 states have internal predecessors, (278), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 07:25:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 302 transitions. [2022-12-14 07:25:28,004 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 302 transitions. Word has length 43 [2022-12-14 07:25:28,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:28,004 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 302 transitions. [2022-12-14 07:25:28,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:28,004 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 302 transitions. [2022-12-14 07:25:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 07:25:28,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:28,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:28,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 07:25:28,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:28,206 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:28,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash -634310522, now seen corresponding path program 1 times [2022-12-14 07:25:28,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:28,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303132054] [2022-12-14 07:25:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:28,209 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 [2022-12-14 07:25:28,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:28,211 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:28,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (20)] Waiting until timeout for monitored process [2022-12-14 07:25:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:28,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:25:28,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:28,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:28,453 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:28,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303132054] [2022-12-14 07:25:28,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303132054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:28,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:28,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:25:28,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258318760] [2022-12-14 07:25:28,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:28,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:25:28,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:25:28,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:25:28,454 INFO L87 Difference]: Start difference. First operand 256 states and 302 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:28,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:28,472 INFO L93 Difference]: Finished difference Result 278 states and 323 transitions. [2022-12-14 07:25:28,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:25:28,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-12-14 07:25:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:28,473 INFO L225 Difference]: With dead ends: 278 [2022-12-14 07:25:28,473 INFO L226 Difference]: Without dead ends: 278 [2022-12-14 07:25:28,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:25:28,474 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 47 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:28,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 562 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:25:28,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-12-14 07:25:28,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 258. [2022-12-14 07:25:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 180 states have (on average 1.55) internal successors, (279), 237 states have internal predecessors, (279), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 07:25:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 303 transitions. [2022-12-14 07:25:28,477 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 303 transitions. Word has length 43 [2022-12-14 07:25:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:28,478 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 303 transitions. [2022-12-14 07:25:28,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:28,478 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 303 transitions. [2022-12-14 07:25:28,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 07:25:28,478 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:28,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:28,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (20)] Ended with exit code 0 [2022-12-14 07:25:28,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:28,679 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:28,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:28,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1697258563, now seen corresponding path program 1 times [2022-12-14 07:25:28,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:28,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638301354] [2022-12-14 07:25:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:28,682 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 [2022-12-14 07:25:28,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:28,685 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:28,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Waiting until timeout for monitored process [2022-12-14 07:25:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:28,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 07:25:28,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:28,902 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 [2022-12-14 07:25:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:28,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:28,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:28,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638301354] [2022-12-14 07:25:28,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638301354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:28,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:28,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:25:28,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093410674] [2022-12-14 07:25:28,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:28,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:25:28,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:28,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:25:28,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:25:28,965 INFO L87 Difference]: Start difference. First operand 258 states and 303 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:29,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:29,701 INFO L93 Difference]: Finished difference Result 319 states and 360 transitions. [2022-12-14 07:25:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:25:29,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-12-14 07:25:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:29,703 INFO L225 Difference]: With dead ends: 319 [2022-12-14 07:25:29,703 INFO L226 Difference]: Without dead ends: 319 [2022-12-14 07:25:29,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:25:29,704 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 129 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:29,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 822 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 07:25:29,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-12-14 07:25:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 257. [2022-12-14 07:25:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 180 states have (on average 1.5333333333333334) internal successors, (276), 236 states have internal predecessors, (276), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 07:25:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 300 transitions. [2022-12-14 07:25:29,710 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 300 transitions. Word has length 44 [2022-12-14 07:25:29,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:29,711 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 300 transitions. [2022-12-14 07:25:29,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 300 transitions. [2022-12-14 07:25:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 07:25:29,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:29,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:29,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:25:29,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:29,912 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:29,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1697258562, now seen corresponding path program 1 times [2022-12-14 07:25:29,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:29,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52693584] [2022-12-14 07:25:29,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:29,913 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 [2022-12-14 07:25:29,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:29,914 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:29,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:30,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 07:25:30,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:30,188 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 [2022-12-14 07:25:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:30,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:30,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:30,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52693584] [2022-12-14 07:25:30,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52693584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:30,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:30,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:25:30,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627839538] [2022-12-14 07:25:30,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:30,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:25:30,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:25:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:25:30,317 INFO L87 Difference]: Start difference. First operand 257 states and 300 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:31,224 INFO L93 Difference]: Finished difference Result 350 states and 394 transitions. [2022-12-14 07:25:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:25:31,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-12-14 07:25:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:31,226 INFO L225 Difference]: With dead ends: 350 [2022-12-14 07:25:31,226 INFO L226 Difference]: Without dead ends: 350 [2022-12-14 07:25:31,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:25:31,226 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 142 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:31,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 846 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 07:25:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-12-14 07:25:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 257. [2022-12-14 07:25:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 180 states have (on average 1.5222222222222221) internal successors, (274), 236 states have internal predecessors, (274), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2022-12-14 07:25:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2022-12-14 07:25:31,232 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 44 [2022-12-14 07:25:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:31,233 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2022-12-14 07:25:31,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:25:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2022-12-14 07:25:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 07:25:31,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:31,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:31,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:25:31,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:31,435 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash 293864698, now seen corresponding path program 1 times [2022-12-14 07:25:31,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:31,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215356954] [2022-12-14 07:25:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:31,438 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 [2022-12-14 07:25:31,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:31,440 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:31,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Waiting until timeout for monitored process [2022-12-14 07:25:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:31,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-14 07:25:31,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:31,671 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 [2022-12-14 07:25:31,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:25:31,857 INFO L321 Elim1Store]: treesize reduction 70, result has 30.7 percent of original size [2022-12-14 07:25:31,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 51 [2022-12-14 07:25:31,911 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 07:25:31,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:25:32,216 INFO L321 Elim1Store]: treesize reduction 70, result has 30.7 percent of original size [2022-12-14 07:25:32,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 51 [2022-12-14 07:25:32,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-12-14 07:25:32,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-12-14 07:25:33,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:33,186 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 07:25:33,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 43 [2022-12-14 07:25:33,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:25:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:33,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:33,427 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:33,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215356954] [2022-12-14 07:25:33,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215356954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:33,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:33,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-14 07:25:33,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073578988] [2022-12-14 07:25:33,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:33,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 07:25:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:33,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 07:25:33,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-12-14 07:25:33,429 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 19 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:37,815 INFO L93 Difference]: Finished difference Result 321 states and 358 transitions. [2022-12-14 07:25:37,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 07:25:37,816 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2022-12-14 07:25:37,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:37,817 INFO L225 Difference]: With dead ends: 321 [2022-12-14 07:25:37,818 INFO L226 Difference]: Without dead ends: 321 [2022-12-14 07:25:37,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=190, Invalid=932, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 07:25:37,818 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 470 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 35 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:37,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1336 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1439 Invalid, 8 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 07:25:37,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-12-14 07:25:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 282. [2022-12-14 07:25:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 202 states have (on average 1.49009900990099) internal successors, (301), 259 states have internal predecessors, (301), 11 states have call successors, (11), 10 states have call predecessors, (11), 11 states have return successors, (16), 12 states have call predecessors, (16), 11 states have call successors, (16) [2022-12-14 07:25:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 328 transitions. [2022-12-14 07:25:37,825 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 328 transitions. Word has length 45 [2022-12-14 07:25:37,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:37,825 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 328 transitions. [2022-12-14 07:25:37,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:37,825 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 328 transitions. [2022-12-14 07:25:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 07:25:37,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:37,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:37,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:25:38,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:38,027 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:38,028 INFO L85 PathProgramCache]: Analyzing trace with hash 293864699, now seen corresponding path program 1 times [2022-12-14 07:25:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:38,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167513586] [2022-12-14 07:25:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:38,029 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 [2022-12-14 07:25:38,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:38,030 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:38,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (24)] Waiting until timeout for monitored process [2022-12-14 07:25:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:38,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 07:25:38,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:38,277 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 [2022-12-14 07:25:38,288 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 [2022-12-14 07:25:38,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:25:38,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:25:38,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:38,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:25:38,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:38,677 INFO L321 Elim1Store]: treesize reduction 36, result has 25.0 percent of original size [2022-12-14 07:25:38,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 43 [2022-12-14 07:25:38,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 07:25:38,801 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 07:25:38,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:25:39,157 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:25:39,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:25:39,203 INFO L321 Elim1Store]: treesize reduction 26, result has 33.3 percent of original size [2022-12-14 07:25:39,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 26 [2022-12-14 07:25:39,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:25:39,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 07:25:40,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 07:25:40,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:25:41,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-12-14 07:25:41,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:25:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:41,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:41,394 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:41,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167513586] [2022-12-14 07:25:41,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167513586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:41,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:41,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-14 07:25:41,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065854619] [2022-12-14 07:25:41,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:41,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 07:25:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 07:25:41,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-12-14 07:25:41,395 INFO L87 Difference]: Start difference. First operand 282 states and 328 transitions. Second operand has 21 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:49,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:25:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:25:52,268 INFO L93 Difference]: Finished difference Result 356 states and 394 transitions. [2022-12-14 07:25:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 07:25:52,269 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2022-12-14 07:25:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:25:52,270 INFO L225 Difference]: With dead ends: 356 [2022-12-14 07:25:52,270 INFO L226 Difference]: Without dead ends: 356 [2022-12-14 07:25:52,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 19 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 07:25:52,271 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 637 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:25:52,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1320 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2048 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-12-14 07:25:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-12-14 07:25:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 302. [2022-12-14 07:25:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.5137614678899083) internal successors, (330), 277 states have internal predecessors, (330), 13 states have call successors, (13), 11 states have call predecessors, (13), 13 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18) [2022-12-14 07:25:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 361 transitions. [2022-12-14 07:25:52,277 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 361 transitions. Word has length 45 [2022-12-14 07:25:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:25:52,277 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 361 transitions. [2022-12-14 07:25:52,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:25:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 361 transitions. [2022-12-14 07:25:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 07:25:52,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:25:52,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:25:52,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (24)] Ended with exit code 0 [2022-12-14 07:25:52,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:52,479 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:25:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:25:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1063867589, now seen corresponding path program 1 times [2022-12-14 07:25:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:25:52,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008897110] [2022-12-14 07:25:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:25:52,480 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 [2022-12-14 07:25:52,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:25:52,480 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:25:52,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:25:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:25:52,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 70 conjunts are in the unsatisfiable core [2022-12-14 07:25:52,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:52,792 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 07:25:52,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 41 [2022-12-14 07:25:53,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:25:53,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 07:25:53,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:25:53,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:25:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:25:53,438 INFO L321 Elim1Store]: treesize reduction 70, result has 30.7 percent of original size [2022-12-14 07:25:53,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 69 [2022-12-14 07:25:53,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:25:53,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2022-12-14 07:25:53,998 INFO L321 Elim1Store]: treesize reduction 22, result has 55.1 percent of original size [2022-12-14 07:25:53,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-12-14 07:25:54,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:25:54,392 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:25:54,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 46 [2022-12-14 07:25:54,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:25:54,563 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:25:54,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 46 [2022-12-14 07:25:54,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:25:55,144 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 07:25:55,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 21 [2022-12-14 07:25:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:25:55,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:25:55,264 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:25:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008897110] [2022-12-14 07:25:55,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008897110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:25:55,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:25:55,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-14 07:25:55,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970596091] [2022-12-14 07:25:55,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:25:55,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 07:25:55,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:25:55,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 07:25:55,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:25:55,267 INFO L87 Difference]: Start difference. First operand 302 states and 361 transitions. Second operand has 27 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:26:05,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:26:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:06,996 INFO L93 Difference]: Finished difference Result 360 states and 402 transitions. [2022-12-14 07:26:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 07:26:06,996 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-12-14 07:26:06,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:06,998 INFO L225 Difference]: With dead ends: 360 [2022-12-14 07:26:06,998 INFO L226 Difference]: Without dead ends: 360 [2022-12-14 07:26:06,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=282, Invalid=2370, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 07:26:07,000 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 462 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:07,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1588 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2040 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 07:26:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-14 07:26:07,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 315. [2022-12-14 07:26:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 229 states have (on average 1.5283842794759825) internal successors, (350), 288 states have internal predecessors, (350), 14 states have call successors, (14), 12 states have call predecessors, (14), 14 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2022-12-14 07:26:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 383 transitions. [2022-12-14 07:26:07,004 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 383 transitions. Word has length 47 [2022-12-14 07:26:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:07,004 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 383 transitions. [2022-12-14 07:26:07,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:26:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 383 transitions. [2022-12-14 07:26:07,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 07:26:07,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:07,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:07,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:26:07,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:26:07,207 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting free_reportsErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:26:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:07,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1063867588, now seen corresponding path program 1 times [2022-12-14 07:26:07,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:07,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259885307] [2022-12-14 07:26:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:07,210 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 [2022-12-14 07:26:07,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:07,213 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:26:07,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (26)] Waiting until timeout for monitored process [2022-12-14 07:26:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:07,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 86 conjunts are in the unsatisfiable core [2022-12-14 07:26:07,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:07,485 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 [2022-12-14 07:26:07,557 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 07:26:07,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 07:26:07,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:26:07,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:26:07,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 07:26:07,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 07:26:08,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:26:08,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 07:26:08,199 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-12-14 07:26:08,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 51 [2022-12-14 07:26:08,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:26:08,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 07:26:08,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:26:08,845 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:26:08,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:26:08,871 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-12-14 07:26:08,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-12-14 07:26:11,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 07:26:11,190 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:26:11,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 62 [2022-12-14 07:26:11,374 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:26:11,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 62 [2022-12-14 07:26:11,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 07:26:12,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:12,075 INFO L321 Elim1Store]: treesize reduction 31, result has 8.8 percent of original size [2022-12-14 07:26:12,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 42 [2022-12-14 07:26:12,084 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 07:26:12,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 18 [2022-12-14 07:26:12,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:12,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:12,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:12,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259885307] [2022-12-14 07:26:12,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259885307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:12,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:12,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-14 07:26:12,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570251151] [2022-12-14 07:26:12,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:12,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 07:26:12,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:12,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 07:26:12,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2022-12-14 07:26:12,202 INFO L87 Difference]: Start difference. First operand 315 states and 383 transitions. Second operand has 28 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:26:17,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:26:23,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:23,979 INFO L93 Difference]: Finished difference Result 344 states and 380 transitions. [2022-12-14 07:26:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 07:26:23,979 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-12-14 07:26:23,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:23,980 INFO L225 Difference]: With dead ends: 344 [2022-12-14 07:26:23,980 INFO L226 Difference]: Without dead ends: 344 [2022-12-14 07:26:23,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=301, Invalid=2351, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 07:26:23,981 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 435 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 55 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:23,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1393 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2350 Invalid, 9 Unknown, 0 Unchecked, 8.8s Time] [2022-12-14 07:26:23,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-12-14 07:26:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 293. [2022-12-14 07:26:23,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 211 states have (on average 1.4928909952606635) internal successors, (315), 268 states have internal predecessors, (315), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) [2022-12-14 07:26:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 343 transitions. [2022-12-14 07:26:23,985 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 343 transitions. Word has length 47 [2022-12-14 07:26:23,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:23,985 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 343 transitions. [2022-12-14 07:26:23,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:26:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 343 transitions. [2022-12-14 07:26:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 07:26:23,985 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:23,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:23,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (26)] Forceful destruction successful, exit code 0 [2022-12-14 07:26:24,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:26:24,186 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:26:24,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:24,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1620254662, now seen corresponding path program 1 times [2022-12-14 07:26:24,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:24,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484194238] [2022-12-14 07:26:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:24,187 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 [2022-12-14 07:26:24,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:24,187 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:26:24,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:26:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:24,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 07:26:24,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:24,616 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 07:26:24,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 37 [2022-12-14 07:26:24,858 INFO L321 Elim1Store]: treesize reduction 44, result has 37.1 percent of original size [2022-12-14 07:26:24,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-12-14 07:26:25,046 INFO L321 Elim1Store]: treesize reduction 118, result has 27.6 percent of original size [2022-12-14 07:26:25,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 38 treesize of output 73 [2022-12-14 07:26:25,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:26:25,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:26:25,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:26:25,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:26:26,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:26:26,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:26:26,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:26:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:27,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:27,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:27,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484194238] [2022-12-14 07:26:27,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484194238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:27,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:27,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-14 07:26:27,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58786324] [2022-12-14 07:26:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:27,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 07:26:27,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:27,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 07:26:27,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=335, Unknown=1, NotChecked=0, Total=380 [2022-12-14 07:26:27,084 INFO L87 Difference]: Start difference. First operand 293 states and 343 transitions. Second operand has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:26:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:48,896 INFO L93 Difference]: Finished difference Result 466 states and 525 transitions. [2022-12-14 07:26:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 07:26:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-12-14 07:26:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:48,898 INFO L225 Difference]: With dead ends: 466 [2022-12-14 07:26:48,898 INFO L226 Difference]: Without dead ends: 466 [2022-12-14 07:26:48,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=311, Invalid=1244, Unknown=5, NotChecked=0, Total=1560 [2022-12-14 07:26:48,898 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 1606 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 147 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:48,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1117 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1937 Invalid, 6 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 07:26:48,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-12-14 07:26:48,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 319. [2022-12-14 07:26:48,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 238 states have (on average 1.4915966386554622) internal successors, (355), 293 states have internal predecessors, (355), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:26:48,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 385 transitions. [2022-12-14 07:26:48,903 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 385 transitions. Word has length 47 [2022-12-14 07:26:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:48,903 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 385 transitions. [2022-12-14 07:26:48,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:26:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 385 transitions. [2022-12-14 07:26:48,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 07:26:48,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:48,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:48,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:26:49,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:26:49,106 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:26:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:49,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1620254663, now seen corresponding path program 1 times [2022-12-14 07:26:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:49,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442511642] [2022-12-14 07:26:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:49,109 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 [2022-12-14 07:26:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:49,111 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:26:49,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (28)] Waiting until timeout for monitored process [2022-12-14 07:26:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:49,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 07:26:49,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:49,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:26:49,678 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:49,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:49,704 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 [2022-12-14 07:26:49,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-14 07:26:50,002 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:50,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:50,041 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:26:50,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:26:50,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:26:50,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:26:50,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:26:50,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:26:50,631 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:50,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:50,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:26:50,666 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:50,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:50,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:26:50,824 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:50,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:50,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:26:50,882 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:50,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:50,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:26:51,039 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:51,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:51,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:26:51,104 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:26:51,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:26:51,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:26:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:51,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:26:51,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:51,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:26:51,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:26:51,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:26:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:51,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:51,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442511642] [2022-12-14 07:26:51,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442511642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:51,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:51,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-14 07:26:51,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198165082] [2022-12-14 07:26:51,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:51,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 07:26:51,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:51,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 07:26:51,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-12-14 07:26:51,851 INFO L87 Difference]: Start difference. First operand 319 states and 385 transitions. Second operand has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:27:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:27:04,656 INFO L93 Difference]: Finished difference Result 422 states and 495 transitions. [2022-12-14 07:27:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 07:27:04,657 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-12-14 07:27:04,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:27:04,658 INFO L225 Difference]: With dead ends: 422 [2022-12-14 07:27:04,658 INFO L226 Difference]: Without dead ends: 422 [2022-12-14 07:27:04,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 07:27:04,658 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 869 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:27:04,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1366 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 07:27:04,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-12-14 07:27:04,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 319. [2022-12-14 07:27:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 238 states have (on average 1.4831932773109244) internal successors, (353), 293 states have internal predecessors, (353), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:27:04,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 383 transitions. [2022-12-14 07:27:04,663 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 383 transitions. Word has length 47 [2022-12-14 07:27:04,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:27:04,663 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 383 transitions. [2022-12-14 07:27:04,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:27:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 383 transitions. [2022-12-14 07:27:04,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 07:27:04,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:27:04,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:27:04,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (28)] Ended with exit code 0 [2022-12-14 07:27:04,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:27:04,865 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:27:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:27:04,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2130667900, now seen corresponding path program 1 times [2022-12-14 07:27:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:27:04,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628869462] [2022-12-14 07:27:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:27:04,867 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 [2022-12-14 07:27:04,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:27:04,868 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:27:04,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Waiting until timeout for monitored process [2022-12-14 07:27:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:27:05,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 77 conjunts are in the unsatisfiable core [2022-12-14 07:27:05,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:27:05,533 INFO L321 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-12-14 07:27:05,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 32 [2022-12-14 07:27:05,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:27:05,710 INFO L321 Elim1Store]: treesize reduction 106, result has 28.4 percent of original size [2022-12-14 07:27:05,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 67 [2022-12-14 07:27:05,782 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-12-14 07:27:05,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 21 [2022-12-14 07:27:06,151 INFO L321 Elim1Store]: treesize reduction 128, result has 29.3 percent of original size [2022-12-14 07:27:06,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 44 treesize of output 83 [2022-12-14 07:27:06,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-12-14 07:27:06,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:27:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,080 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:27:07,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 73 [2022-12-14 07:27:07,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:27:07,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,464 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:27:07,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2022-12-14 07:27:07,527 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:27:07,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:27:07,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:27:07,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,658 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:27:07,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2022-12-14 07:27:07,716 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:27:07,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:27:07,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:27:07,907 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:27:07,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:27:07,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:27:07,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:07,935 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:27:07,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2022-12-14 07:27:08,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:08,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:08,151 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:27:08,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2022-12-14 07:27:08,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:27:08,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:27:08,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:27:09,478 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-12-14 07:27:09,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 36 [2022-12-14 07:27:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:27:09,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:27:09,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:27:09,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628869462] [2022-12-14 07:27:09,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628869462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:27:09,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:27:09,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-14 07:27:09,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127461159] [2022-12-14 07:27:09,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:27:09,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 07:27:09,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:27:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 07:27:09,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2022-12-14 07:27:09,962 INFO L87 Difference]: Start difference. First operand 319 states and 383 transitions. Second operand has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 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) [2022-12-14 07:27:34,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:35,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:37,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:40,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:43,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:48,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:50,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:59,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:27:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:27:59,709 INFO L93 Difference]: Finished difference Result 569 states and 642 transitions. [2022-12-14 07:27:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 07:27:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 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) Word has length 50 [2022-12-14 07:27:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:27:59,711 INFO L225 Difference]: With dead ends: 569 [2022-12-14 07:27:59,711 INFO L226 Difference]: Without dead ends: 569 [2022-12-14 07:27:59,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=497, Invalid=2053, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 07:27:59,712 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1388 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 135 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:27:59,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 1520 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2506 Invalid, 7 Unknown, 0 Unchecked, 29.1s Time] [2022-12-14 07:27:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-14 07:27:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 334. [2022-12-14 07:27:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 250 states have (on average 1.472) internal successors, (368), 306 states have internal predecessors, (368), 14 states have call successors, (14), 13 states have call predecessors, (14), 14 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2022-12-14 07:27:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 401 transitions. [2022-12-14 07:27:59,716 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 401 transitions. Word has length 50 [2022-12-14 07:27:59,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:27:59,717 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 401 transitions. [2022-12-14 07:27:59,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 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) [2022-12-14 07:27:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 401 transitions. [2022-12-14 07:27:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 07:27:59,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:27:59,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:27:59,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:27:59,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:27:59,918 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:27:59,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:27:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2130667899, now seen corresponding path program 1 times [2022-12-14 07:27:59,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:27:59,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153252764] [2022-12-14 07:27:59,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:27:59,921 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 [2022-12-14 07:27:59,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:27:59,924 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:27:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:28:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:28:00,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 109 conjunts are in the unsatisfiable core [2022-12-14 07:28:00,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:28:00,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:28:01,024 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 07:28:01,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2022-12-14 07:28:01,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:28:01,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:28:01,553 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:28:01,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:28:01,611 INFO L321 Elim1Store]: treesize reduction 78, result has 35.0 percent of original size [2022-12-14 07:28:01,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 67 [2022-12-14 07:28:01,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:01,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:01,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:01,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-14 07:28:01,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 07:28:02,102 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:28:02,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:28:02,146 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 07:28:02,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 44 [2022-12-14 07:28:02,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:28:02,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 39 [2022-12-14 07:28:03,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 07:28:03,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,179 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:28:03,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 78 [2022-12-14 07:28:03,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 57 [2022-12-14 07:28:03,860 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:28:03,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:28:03,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:03,913 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:28:03,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:28:03,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:28:04,123 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:28:04,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:28:04,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:04,175 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:28:04,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:28:04,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:28:04,460 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:28:04,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:28:04,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:28:04,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:04,542 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:28:04,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:28:04,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:28:04,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:04,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:28:04,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 07:28:04,817 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:28:04,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:28:06,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2022-12-14 07:28:07,408 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-12-14 07:28:07,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 52 [2022-12-14 07:28:07,440 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 07:28:07,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 07:28:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:28:07,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:28:07,793 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:28:07,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153252764] [2022-12-14 07:28:07,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153252764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:28:07,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:28:07,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-14 07:28:07,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797652897] [2022-12-14 07:28:07,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:28:07,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 07:28:07,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:28:07,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 07:28:07,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2022-12-14 07:28:07,795 INFO L87 Difference]: Start difference. First operand 334 states and 401 transitions. Second operand has 29 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 24 states have internal predecessors, (44), 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) [2022-12-14 07:28:43,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:28:49,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:29:06,626 INFO L93 Difference]: Finished difference Result 606 states and 692 transitions. [2022-12-14 07:29:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 07:29:06,628 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 24 states have internal predecessors, (44), 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) Word has length 50 [2022-12-14 07:29:06,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:29:06,631 INFO L225 Difference]: With dead ends: 606 [2022-12-14 07:29:06,631 INFO L226 Difference]: Without dead ends: 606 [2022-12-14 07:29:06,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=669, Invalid=4023, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 07:29:06,632 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 947 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 4912 mSolverCounterSat, 116 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 5029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:29:06,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 2255 Invalid, 5029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4912 Invalid, 1 Unknown, 0 Unchecked, 20.5s Time] [2022-12-14 07:29:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-12-14 07:29:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 376. [2022-12-14 07:29:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 290 states have (on average 1.4413793103448276) internal successors, (418), 347 states have internal predecessors, (418), 15 states have call successors, (15), 14 states have call predecessors, (15), 15 states have return successors, (21), 14 states have call predecessors, (21), 15 states have call successors, (21) [2022-12-14 07:29:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 454 transitions. [2022-12-14 07:29:06,640 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 454 transitions. Word has length 50 [2022-12-14 07:29:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:29:06,640 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 454 transitions. [2022-12-14 07:29:06,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 24 states have internal predecessors, (44), 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) [2022-12-14 07:29:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 454 transitions. [2022-12-14 07:29:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 07:29:06,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:29:06,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:29:06,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:29:06,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:29:06,842 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_list_delErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:29:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:29:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1565616984, now seen corresponding path program 1 times [2022-12-14 07:29:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:29:06,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273050216] [2022-12-14 07:29:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:06,842 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 [2022-12-14 07:29:06,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:29:06,843 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:29:06,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (31)] Waiting until timeout for monitored process [2022-12-14 07:29:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:29:06,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:29:06,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:29:07,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:29:07,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:29:07,019 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:29:07,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273050216] [2022-12-14 07:29:07,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273050216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:29:07,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:29:07,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:29:07,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655095731] [2022-12-14 07:29:07,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:29:07,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:29:07,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:29:07,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:29:07,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:29:07,021 INFO L87 Difference]: Start difference. First operand 376 states and 454 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:29:07,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:29:07,462 INFO L93 Difference]: Finished difference Result 396 states and 472 transitions. [2022-12-14 07:29:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:29:07,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2022-12-14 07:29:07,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:29:07,463 INFO L225 Difference]: With dead ends: 396 [2022-12-14 07:29:07,463 INFO L226 Difference]: Without dead ends: 396 [2022-12-14 07:29:07,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:29:07,464 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 44 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:29:07,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 512 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 07:29:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-12-14 07:29:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 388. [2022-12-14 07:29:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 301 states have (on average 1.441860465116279) internal successors, (434), 357 states have internal predecessors, (434), 16 states have call successors, (16), 15 states have call predecessors, (16), 16 states have return successors, (22), 15 states have call predecessors, (22), 16 states have call successors, (22) [2022-12-14 07:29:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 472 transitions. [2022-12-14 07:29:07,471 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 472 transitions. Word has length 52 [2022-12-14 07:29:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:29:07,471 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 472 transitions. [2022-12-14 07:29:07,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:29:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 472 transitions. [2022-12-14 07:29:07,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 07:29:07,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:29:07,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:29:07,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (31)] Ended with exit code 0 [2022-12-14 07:29:07,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:29:07,673 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_list_delErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:29:07,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:29:07,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1565616985, now seen corresponding path program 1 times [2022-12-14 07:29:07,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:29:07,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789681896] [2022-12-14 07:29:07,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:07,676 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 [2022-12-14 07:29:07,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:29:07,678 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:29:07,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (32)] Waiting until timeout for monitored process [2022-12-14 07:29:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:29:07,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 77 conjunts are in the unsatisfiable core [2022-12-14 07:29:07,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:29:08,102 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 07:29:08,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 07:29:08,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:29:08,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:29:08,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 07:29:08,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 07:29:08,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:29:08,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 07:29:08,771 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-12-14 07:29:08,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 51 [2022-12-14 07:29:08,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:29:09,345 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-12-14 07:29:09,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-12-14 07:29:10,881 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:29:10,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 55 [2022-12-14 07:29:10,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 07:29:11,115 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:29:11,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 55 [2022-12-14 07:29:11,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-12-14 07:29:11,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:29:11,866 INFO L321 Elim1Store]: treesize reduction 32, result has 8.6 percent of original size [2022-12-14 07:29:11,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 27 [2022-12-14 07:29:11,881 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 07:29:11,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 16 [2022-12-14 07:29:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:29:12,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:29:12,048 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:29:12,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789681896] [2022-12-14 07:29:12,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789681896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:29:12,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:29:12,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-14 07:29:12,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760679436] [2022-12-14 07:29:12,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:29:12,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 07:29:12,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:29:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 07:29:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:29:12,049 INFO L87 Difference]: Start difference. First operand 388 states and 472 transitions. Second operand has 27 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 20 states have internal predecessors, (44), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:29:19,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:29:25,197 INFO L93 Difference]: Finished difference Result 418 states and 489 transitions. [2022-12-14 07:29:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 07:29:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 20 states have internal predecessors, (44), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2022-12-14 07:29:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:29:25,200 INFO L225 Difference]: With dead ends: 418 [2022-12-14 07:29:25,200 INFO L226 Difference]: Without dead ends: 418 [2022-12-14 07:29:25,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=274, Invalid=1982, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 07:29:25,200 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 348 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:29:25,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1861 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1736 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 07:29:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-12-14 07:29:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 377. [2022-12-14 07:29:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 292 states have (on average 1.4315068493150684) internal successors, (418), 348 states have internal predecessors, (418), 15 states have call successors, (15), 14 states have call predecessors, (15), 15 states have return successors, (21), 14 states have call predecessors, (21), 15 states have call successors, (21) [2022-12-14 07:29:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 454 transitions. [2022-12-14 07:29:25,204 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 454 transitions. Word has length 52 [2022-12-14 07:29:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:29:25,204 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 454 transitions. [2022-12-14 07:29:25,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 20 states have internal predecessors, (44), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:29:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 454 transitions. [2022-12-14 07:29:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 07:29:25,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:29:25,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:29:25,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (32)] Ended with exit code 0 [2022-12-14 07:29:25,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:29:25,406 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:29:25,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:29:25,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1996654393, now seen corresponding path program 1 times [2022-12-14 07:29:25,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:29:25,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109773692] [2022-12-14 07:29:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:25,407 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 [2022-12-14 07:29:25,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:29:25,408 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:29:25,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:29:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:29:26,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 109 conjunts are in the unsatisfiable core [2022-12-14 07:29:26,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:29:26,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:29:26,371 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 07:29:26,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43 [2022-12-14 07:29:26,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:29:26,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:29:26,944 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:29:26,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:29:27,023 INFO L321 Elim1Store]: treesize reduction 78, result has 35.0 percent of original size [2022-12-14 07:29:27,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 67 [2022-12-14 07:29:27,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:27,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:27,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:27,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-12-14 07:29:27,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 07:29:27,556 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:29:27,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:29:27,608 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 07:29:27,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 44 [2022-12-14 07:29:28,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 39 [2022-12-14 07:29:28,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:29:28,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,428 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:29:28,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 78 [2022-12-14 07:29:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 57 [2022-12-14 07:29:28,813 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:29:28,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:29:28,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,873 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:29:28,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:29:28,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:28,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:29:28,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:29:28,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:29:28,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2022-12-14 07:29:29,303 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:29:29,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:29:29,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,355 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:29:29,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:29:29,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 83 [2022-12-14 07:29:29,709 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 07:29:29,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:29:29,744 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:29:29,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:29:29,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:29,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 83 [2022-12-14 07:29:30,109 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:29:30,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57 [2022-12-14 07:29:30,156 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:29:30,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 83 [2022-12-14 07:29:30,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:29:30,205 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:29:30,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:29:30,831 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:29:30,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 13 [2022-12-14 07:29:32,512 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-12-14 07:29:32,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 52 [2022-12-14 07:29:32,535 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 07:29:32,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 07:29:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:29:32,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:29:32,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:29:32,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109773692] [2022-12-14 07:29:32,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109773692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:29:32,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:29:32,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-14 07:29:32,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526811102] [2022-12-14 07:29:32,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:29:32,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 07:29:32,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:29:32,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 07:29:32,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-12-14 07:29:32,973 INFO L87 Difference]: Start difference. First operand 377 states and 454 transitions. Second operand has 28 states, 25 states have (on average 1.76) internal successors, (44), 23 states have internal predecessors, (44), 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) [2022-12-14 07:30:03,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:30:12,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:30:32,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:32,527 INFO L93 Difference]: Finished difference Result 676 states and 774 transitions. [2022-12-14 07:30:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 07:30:32,528 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 1.76) internal successors, (44), 23 states have internal predecessors, (44), 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) Word has length 50 [2022-12-14 07:30:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:32,532 INFO L225 Difference]: With dead ends: 676 [2022-12-14 07:30:32,532 INFO L226 Difference]: Without dead ends: 676 [2022-12-14 07:30:32,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1165 ImplicationChecksByTransitivity, 39.8s TimeCoverageRelationStatistics Valid=706, Invalid=4124, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 07:30:32,535 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 968 mSDsluCounter, 2441 mSDsCounter, 0 mSdLazyCounter, 4518 mSolverCounterSat, 123 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 4643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 4518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:32,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 2589 Invalid, 4643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4518 Invalid, 2 Unknown, 0 Unchecked, 23.4s Time] [2022-12-14 07:30:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-12-14 07:30:32,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 365. [2022-12-14 07:30:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 283 states have (on average 1.4169611307420495) internal successors, (401), 337 states have internal predecessors, (401), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 431 transitions. [2022-12-14 07:30:32,544 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 431 transitions. Word has length 50 [2022-12-14 07:30:32,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:32,544 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 431 transitions. [2022-12-14 07:30:32,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 1.76) internal successors, (44), 23 states have internal predecessors, (44), 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) [2022-12-14 07:30:32,544 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 431 transitions. [2022-12-14 07:30:32,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 07:30:32,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:32,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:32,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:32,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:32,746 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:32,747 INFO L85 PathProgramCache]: Analyzing trace with hash -618177741, now seen corresponding path program 1 times [2022-12-14 07:30:32,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:32,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603889741] [2022-12-14 07:30:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:32,755 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 [2022-12-14 07:30:32,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:32,756 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:32,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (34)] Waiting until timeout for monitored process [2022-12-14 07:30:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:32,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:30:32,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:32,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:32,976 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:32,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603889741] [2022-12-14 07:30:32,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603889741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:32,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:32,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:30:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650283354] [2022-12-14 07:30:32,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:32,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:30:32,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:32,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:30:32,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:30:32,977 INFO L87 Difference]: Start difference. First operand 365 states and 431 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:30:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:32,993 INFO L93 Difference]: Finished difference Result 385 states and 448 transitions. [2022-12-14 07:30:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:30:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2022-12-14 07:30:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:32,994 INFO L225 Difference]: With dead ends: 385 [2022-12-14 07:30:32,994 INFO L226 Difference]: Without dead ends: 385 [2022-12-14 07:30:32,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:30:32,995 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 78 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:32,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 540 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:30:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-12-14 07:30:32,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 365. [2022-12-14 07:30:32,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 283 states have (on average 1.4028268551236749) internal successors, (397), 337 states have internal predecessors, (397), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 427 transitions. [2022-12-14 07:30:32,998 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 427 transitions. Word has length 52 [2022-12-14 07:30:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:32,998 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 427 transitions. [2022-12-14 07:30:32,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:30:32,998 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 427 transitions. [2022-12-14 07:30:32,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 07:30:32,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:32,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:33,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (34)] Ended with exit code 0 [2022-12-14 07:30:33,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:33,200 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1041751103, now seen corresponding path program 1 times [2022-12-14 07:30:33,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:33,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666793793] [2022-12-14 07:30:33,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:33,203 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 [2022-12-14 07:30:33,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:33,205 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:33,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:33,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-14 07:30:33,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:33,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:30:33,818 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 07:30:33,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:30:33,890 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:30:33,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 49 [2022-12-14 07:30:34,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:30:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:34,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:34,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:34,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666793793] [2022-12-14 07:30:34,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666793793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:34,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:34,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-14 07:30:34,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175687070] [2022-12-14 07:30:34,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:34,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 07:30:34,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:34,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 07:30:34,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-12-14 07:30:34,024 INFO L87 Difference]: Start difference. First operand 365 states and 427 transitions. Second operand has 18 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 07:30:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:35,358 INFO L93 Difference]: Finished difference Result 378 states and 439 transitions. [2022-12-14 07:30:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 07:30:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 54 [2022-12-14 07:30:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:35,359 INFO L225 Difference]: With dead ends: 378 [2022-12-14 07:30:35,359 INFO L226 Difference]: Without dead ends: 378 [2022-12-14 07:30:35,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=203, Invalid=853, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 07:30:35,360 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 518 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:35,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1083 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 07:30:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-12-14 07:30:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 367. [2022-12-14 07:30:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 286 states have (on average 1.3951048951048952) internal successors, (399), 338 states have internal predecessors, (399), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 15 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 429 transitions. [2022-12-14 07:30:35,363 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 429 transitions. Word has length 54 [2022-12-14 07:30:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:35,363 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 429 transitions. [2022-12-14 07:30:35,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 07:30:35,364 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 429 transitions. [2022-12-14 07:30:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 07:30:35,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:35,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:35,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:35,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:35,564 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:35,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2065453880, now seen corresponding path program 1 times [2022-12-14 07:30:35,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:35,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594290138] [2022-12-14 07:30:35,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:35,565 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 [2022-12-14 07:30:35,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:35,566 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:35,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (36)] Waiting until timeout for monitored process [2022-12-14 07:30:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:35,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-14 07:30:35,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:35,848 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 [2022-12-14 07:30:36,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:30:36,053 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 07:30:36,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 24 [2022-12-14 07:30:36,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-12-14 07:30:36,348 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:30:36,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-12-14 07:30:36,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:30:36,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 49 [2022-12-14 07:30:37,114 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:30:37,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 14 [2022-12-14 07:30:37,287 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:30:37,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 17 [2022-12-14 07:30:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:37,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:37,360 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:37,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594290138] [2022-12-14 07:30:37,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594290138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:37,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:37,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-14 07:30:37,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090548393] [2022-12-14 07:30:37,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:37,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 07:30:37,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:37,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 07:30:37,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2022-12-14 07:30:37,362 INFO L87 Difference]: Start difference. First operand 367 states and 429 transitions. Second operand has 20 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 07:30:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:40,808 INFO L93 Difference]: Finished difference Result 376 states and 437 transitions. [2022-12-14 07:30:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 07:30:40,808 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2022-12-14 07:30:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:40,809 INFO L225 Difference]: With dead ends: 376 [2022-12-14 07:30:40,809 INFO L226 Difference]: Without dead ends: 376 [2022-12-14 07:30:40,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 07:30:40,810 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 296 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:40,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1700 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 07:30:40,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-12-14 07:30:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 367. [2022-12-14 07:30:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 287 states have (on average 1.3902439024390243) internal successors, (399), 338 states have internal predecessors, (399), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 15 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 429 transitions. [2022-12-14 07:30:40,814 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 429 transitions. Word has length 55 [2022-12-14 07:30:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:40,814 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 429 transitions. [2022-12-14 07:30:40,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 07:30:40,814 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 429 transitions. [2022-12-14 07:30:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 07:30:40,815 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:40,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:40,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (36)] Forceful destruction successful, exit code 0 [2022-12-14 07:30:41,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:41,016 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:41,017 INFO L85 PathProgramCache]: Analyzing trace with hash 395439457, now seen corresponding path program 1 times [2022-12-14 07:30:41,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:41,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132927032] [2022-12-14 07:30:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:41,019 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 [2022-12-14 07:30:41,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:41,021 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:41,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (37)] Waiting until timeout for monitored process [2022-12-14 07:30:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:41,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 07:30:41,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:41,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:30:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:41,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:41,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:41,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132927032] [2022-12-14 07:30:41,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132927032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:41,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:41,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:30:41,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604077180] [2022-12-14 07:30:41,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:41,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:30:41,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:41,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:30:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:30:41,323 INFO L87 Difference]: Start difference. First operand 367 states and 429 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 07:30:41,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:41,867 INFO L93 Difference]: Finished difference Result 375 states and 437 transitions. [2022-12-14 07:30:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:30:41,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-12-14 07:30:41,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:41,868 INFO L225 Difference]: With dead ends: 375 [2022-12-14 07:30:41,868 INFO L226 Difference]: Without dead ends: 375 [2022-12-14 07:30:41,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:30:41,869 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 46 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:41,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 650 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:30:41,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-12-14 07:30:41,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 372. [2022-12-14 07:30:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 292 states have (on average 1.393835616438356) internal successors, (407), 342 states have internal predecessors, (407), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 16 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:41,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 437 transitions. [2022-12-14 07:30:41,874 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 437 transitions. Word has length 56 [2022-12-14 07:30:41,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:41,874 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 437 transitions. [2022-12-14 07:30:41,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 07:30:41,874 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 437 transitions. [2022-12-14 07:30:41,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 07:30:41,875 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:41,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:41,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (37)] Ended with exit code 0 [2022-12-14 07:30:42,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:42,076 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:42,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:42,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1180054863, now seen corresponding path program 1 times [2022-12-14 07:30:42,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:42,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428517750] [2022-12-14 07:30:42,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:42,079 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 [2022-12-14 07:30:42,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:42,081 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:42,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:42,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 07:30:42,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:42,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:42,415 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:42,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428517750] [2022-12-14 07:30:42,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428517750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:42,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:42,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:30:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294574933] [2022-12-14 07:30:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:42,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:30:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:30:42,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:30:42,416 INFO L87 Difference]: Start difference. First operand 372 states and 437 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:30:42,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:42,481 INFO L93 Difference]: Finished difference Result 474 states and 552 transitions. [2022-12-14 07:30:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:30:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-12-14 07:30:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:42,482 INFO L225 Difference]: With dead ends: 474 [2022-12-14 07:30:42,482 INFO L226 Difference]: Without dead ends: 474 [2022-12-14 07:30:42,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:30:42,482 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 138 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:42,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1006 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:30:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-12-14 07:30:42,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 384. [2022-12-14 07:30:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 304 states have (on average 1.3782894736842106) internal successors, (419), 354 states have internal predecessors, (419), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 16 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 449 transitions. [2022-12-14 07:30:42,487 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 449 transitions. Word has length 57 [2022-12-14 07:30:42,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:42,487 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 449 transitions. [2022-12-14 07:30:42,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 07:30:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 449 transitions. [2022-12-14 07:30:42,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 07:30:42,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:42,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:42,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:42,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:42,689 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:42,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash -106046335, now seen corresponding path program 1 times [2022-12-14 07:30:42,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:42,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757344016] [2022-12-14 07:30:42,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:42,692 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 [2022-12-14 07:30:42,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:42,694 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:42,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (39)] Waiting until timeout for monitored process [2022-12-14 07:30:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:43,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 07:30:43,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:43,296 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (exists ((v_ArrVal_2368 (_ BitVec 32))) (= (store |c_old(#length)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_2368) |c_#length|)) (= (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|) (_ bv0 1)))) is different from true [2022-12-14 07:30:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:30:43,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-12-14 07:30:43,343 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:30:43,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:30:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:43,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:43,404 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:43,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757344016] [2022-12-14 07:30:43,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757344016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:43,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:43,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:30:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929065934] [2022-12-14 07:30:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:43,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:30:43,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:43,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:30:43,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2022-12-14 07:30:43,405 INFO L87 Difference]: Start difference. First operand 384 states and 449 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 07:30:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:30:44,598 INFO L93 Difference]: Finished difference Result 545 states and 627 transitions. [2022-12-14 07:30:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:30:44,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2022-12-14 07:30:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:30:44,602 INFO L225 Difference]: With dead ends: 545 [2022-12-14 07:30:44,602 INFO L226 Difference]: Without dead ends: 545 [2022-12-14 07:30:44,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2022-12-14 07:30:44,602 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 208 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 262 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:30:44,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 332 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 306 Invalid, 0 Unknown, 262 Unchecked, 1.2s Time] [2022-12-14 07:30:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-12-14 07:30:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 381. [2022-12-14 07:30:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 304 states have (on average 1.361842105263158) internal successors, (414), 351 states have internal predecessors, (414), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (17), 16 states have call predecessors, (17), 13 states have call successors, (17) [2022-12-14 07:30:44,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 444 transitions. [2022-12-14 07:30:44,612 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 444 transitions. Word has length 59 [2022-12-14 07:30:44,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:30:44,612 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 444 transitions. [2022-12-14 07:30:44,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 07:30:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 444 transitions. [2022-12-14 07:30:44,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 07:30:44,613 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:30:44,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:30:44,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (39)] Ended with exit code 0 [2022-12-14 07:30:44,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:30:44,814 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:30:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:30:44,816 INFO L85 PathProgramCache]: Analyzing trace with hash -122236954, now seen corresponding path program 1 times [2022-12-14 07:30:44,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:30:44,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217373395] [2022-12-14 07:30:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:30:44,817 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 [2022-12-14 07:30:44,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:30:44,820 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:30:44,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Waiting until timeout for monitored process [2022-12-14 07:30:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:30:45,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-14 07:30:45,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:30:45,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 07:30:45,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:30:45,482 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 07:30:45,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2022-12-14 07:30:46,270 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:30:46,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 73 [2022-12-14 07:30:46,498 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:30:46,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 73 [2022-12-14 07:30:51,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 57 [2022-12-14 07:30:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:30:53,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:30:53,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:30:53,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217373395] [2022-12-14 07:30:53,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217373395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:30:53,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:30:53,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-14 07:30:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669810159] [2022-12-14 07:30:53,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:30:53,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 07:30:53,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:30:53,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 07:30:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=352, Unknown=5, NotChecked=0, Total=420 [2022-12-14 07:30:53,659 INFO L87 Difference]: Start difference. First operand 381 states and 444 transitions. Second operand has 21 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 07:30:56,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:30:58,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:04,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:10,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:18,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:20,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:31,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:33,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:31:36,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:36,524 INFO L93 Difference]: Finished difference Result 390 states and 450 transitions. [2022-12-14 07:31:36,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 07:31:36,524 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 60 [2022-12-14 07:31:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:36,525 INFO L225 Difference]: With dead ends: 390 [2022-12-14 07:31:36,525 INFO L226 Difference]: Without dead ends: 362 [2022-12-14 07:31:36,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=133, Invalid=847, Unknown=12, NotChecked=0, Total=992 [2022-12-14 07:31:36,525 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 257 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 33 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:36,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1326 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1728 Invalid, 44 Unknown, 0 Unchecked, 22.8s Time] [2022-12-14 07:31:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-12-14 07:31:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2022-12-14 07:31:36,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 283 states have (on average 1.3816254416961131) internal successors, (391), 330 states have internal predecessors, (391), 12 states have call successors, (12), 12 states have call predecessors, (12), 13 states have return successors, (16), 15 states have call predecessors, (16), 12 states have call successors, (16) [2022-12-14 07:31:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 419 transitions. [2022-12-14 07:31:36,529 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 419 transitions. Word has length 60 [2022-12-14 07:31:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:36,529 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 419 transitions. [2022-12-14 07:31:36,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 07:31:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 419 transitions. [2022-12-14 07:31:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 07:31:36,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:36,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:36,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 07:31:36,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:31:36,730 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:31:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1820164861, now seen corresponding path program 1 times [2022-12-14 07:31:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:31:36,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125328790] [2022-12-14 07:31:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:36,733 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 [2022-12-14 07:31:36,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:31:36,736 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:31:36,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:31:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:37,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-14 07:31:37,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:37,507 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 07:31:37,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 07:31:37,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:31:37,905 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-12-14 07:31:37,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 51 [2022-12-14 07:31:38,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:31:38,282 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 07:31:38,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 36 [2022-12-14 07:31:38,615 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:31:38,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41 [2022-12-14 07:31:38,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-12-14 07:31:39,047 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:31:39,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 71 [2022-12-14 07:31:39,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-12-14 07:31:39,792 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:31:39,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 67 [2022-12-14 07:31:40,140 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:31:40,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 67 [2022-12-14 07:31:40,463 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:31:40,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 67 [2022-12-14 07:31:40,758 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 07:31:40,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 67 [2022-12-14 07:31:42,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:31:42,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 67 [2022-12-14 07:31:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:42,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:31:42,824 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:31:42,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125328790] [2022-12-14 07:31:42,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125328790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:42,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:42,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-12-14 07:31:42,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134211440] [2022-12-14 07:31:42,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:42,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 07:31:42,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:31:42,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 07:31:42,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2022-12-14 07:31:42,825 INFO L87 Difference]: Start difference. First operand 358 states and 419 transitions. Second operand has 26 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:32:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:32:01,525 INFO L93 Difference]: Finished difference Result 514 states and 569 transitions. [2022-12-14 07:32:01,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 07:32:01,525 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 61 [2022-12-14 07:32:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:32:01,527 INFO L225 Difference]: With dead ends: 514 [2022-12-14 07:32:01,527 INFO L226 Difference]: Without dead ends: 514 [2022-12-14 07:32:01,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=404, Invalid=2248, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 07:32:01,528 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1183 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:32:01,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1485 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-12-14 07:32:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-12-14 07:32:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 368. [2022-12-14 07:32:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 291 states have (on average 1.3848797250859106) internal successors, (403), 339 states have internal predecessors, (403), 13 states have call successors, (13), 13 states have call predecessors, (13), 14 states have return successors, (18), 15 states have call predecessors, (18), 13 states have call successors, (18) [2022-12-14 07:32:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 434 transitions. [2022-12-14 07:32:01,534 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 434 transitions. Word has length 61 [2022-12-14 07:32:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:32:01,534 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 434 transitions. [2022-12-14 07:32:01,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:32:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 434 transitions. [2022-12-14 07:32:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 07:32:01,535 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:32:01,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:32:01,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 07:32:01,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:32:01,736 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:32:01,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:32:01,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1820164862, now seen corresponding path program 1 times [2022-12-14 07:32:01,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:32:01,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032015507] [2022-12-14 07:32:01,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:32:01,737 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 [2022-12-14 07:32:01,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:32:01,738 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:32:01,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (42)] Waiting until timeout for monitored process [2022-12-14 07:32:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:32:02,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-14 07:32:02,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:32:02,253 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:32:02,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:32:02,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:32:02,458 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 07:32:02,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:32:02,563 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 07:32:02,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 07:32:02,838 INFO L321 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2022-12-14 07:32:02,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 07:32:03,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:32:03,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:32:03,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 57 [2022-12-14 07:32:03,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 07:32:03,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:03,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:32:04,109 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:32:04,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:32:04,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,155 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 07:32:04,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 34 [2022-12-14 07:32:04,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,201 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:32:04,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2022-12-14 07:32:04,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 07:32:04,384 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:32:04,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2022-12-14 07:32:04,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 07:32:04,437 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 07:32:04,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 34 [2022-12-14 07:32:04,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,478 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:32:04,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:32:04,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,757 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:32:04,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 07:32:04,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,785 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 07:32:04,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2022-12-14 07:32:04,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 07:32:04,873 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 07:32:04,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 34 [2022-12-14 07:32:04,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:04,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:32:05,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:05,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:32:05,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:05,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:32:05,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:05,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:32:05,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 07:32:06,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2022-12-14 07:32:07,448 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:32:07,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 44 [2022-12-14 07:32:07,466 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-12-14 07:32:07,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 29 [2022-12-14 07:32:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:32:07,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:32:07,785 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:32:07,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032015507] [2022-12-14 07:32:07,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032015507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:32:07,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:32:07,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-14 07:32:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772419160] [2022-12-14 07:32:07,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:32:07,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-14 07:32:07,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:32:07,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-14 07:32:07,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=913, Unknown=0, NotChecked=0, Total=992 [2022-12-14 07:32:07,786 INFO L87 Difference]: Start difference. First operand 368 states and 434 transitions. Second operand has 32 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 27 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:32:36,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:32:37,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:32:39,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:32:52,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:32:54,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:32:56,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:33:11,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:33:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:11,670 INFO L93 Difference]: Finished difference Result 467 states and 537 transitions. [2022-12-14 07:33:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-14 07:33:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 27 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 61 [2022-12-14 07:33:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:11,672 INFO L225 Difference]: With dead ends: 467 [2022-12-14 07:33:11,672 INFO L226 Difference]: Without dead ends: 467 [2022-12-14 07:33:11,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=647, Invalid=4458, Unknown=7, NotChecked=0, Total=5112 [2022-12-14 07:33:11,673 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 942 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 97 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:11,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2486 Invalid, 3439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3334 Invalid, 8 Unknown, 0 Unchecked, 25.6s Time] [2022-12-14 07:33:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-12-14 07:33:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 402. [2022-12-14 07:33:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 318 states have (on average 1.4056603773584906) internal successors, (447), 369 states have internal predecessors, (447), 17 states have call successors, (17), 15 states have call predecessors, (17), 17 states have return successors, (23), 17 states have call predecessors, (23), 17 states have call successors, (23) [2022-12-14 07:33:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 487 transitions. [2022-12-14 07:33:11,677 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 487 transitions. Word has length 61 [2022-12-14 07:33:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:11,677 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 487 transitions. [2022-12-14 07:33:11,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 27 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 07:33:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 487 transitions. [2022-12-14 07:33:11,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 07:33:11,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:11,678 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:11,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (42)] Ended with exit code 0 [2022-12-14 07:33:11,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:11,879 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:33:11,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1168691489, now seen corresponding path program 1 times [2022-12-14 07:33:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:33:11,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932025474] [2022-12-14 07:33:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:11,880 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 [2022-12-14 07:33:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:33:11,882 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:33:11,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:12,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:33:12,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:33:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 07:33:12,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:33:12,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:33:12,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932025474] [2022-12-14 07:33:12,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932025474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:33:12,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:33:12,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:33:12,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028631903] [2022-12-14 07:33:12,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:33:12,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:33:12,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:33:12,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:33:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:33:12,184 INFO L87 Difference]: Start difference. First operand 402 states and 487 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 07:33:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:33:12,716 INFO L93 Difference]: Finished difference Result 563 states and 666 transitions. [2022-12-14 07:33:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:33:12,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2022-12-14 07:33:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:33:12,717 INFO L225 Difference]: With dead ends: 563 [2022-12-14 07:33:12,717 INFO L226 Difference]: Without dead ends: 563 [2022-12-14 07:33:12,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:33:12,718 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 140 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:33:12,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 499 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:33:12,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-12-14 07:33:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 401. [2022-12-14 07:33:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 318 states have (on average 1.4025157232704402) internal successors, (446), 368 states have internal predecessors, (446), 17 states have call successors, (17), 15 states have call predecessors, (17), 17 states have return successors, (23), 17 states have call predecessors, (23), 17 states have call successors, (23) [2022-12-14 07:33:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 486 transitions. [2022-12-14 07:33:12,722 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 486 transitions. Word has length 61 [2022-12-14 07:33:12,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:33:12,722 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 486 transitions. [2022-12-14 07:33:12,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 07:33:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 486 transitions. [2022-12-14 07:33:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 07:33:12,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:12,723 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:12,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:12,924 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 76 more)] === [2022-12-14 07:33:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1168691490, now seen corresponding path program 1 times [2022-12-14 07:33:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:33:12,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183581127] [2022-12-14 07:33:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:12,927 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 [2022-12-14 07:33:12,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:33:12,930 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:33:12,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/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 (44)] Waiting until timeout for monitored process [2022-12-14 07:33:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:33:13,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 93 conjunts are in the unsatisfiable core [2022-12-14 07:33:13,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:33:13,846 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:33:13,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:33:14,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:33:14,097 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 [2022-12-14 07:33:14,332 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 07:33:14,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 07:33:14,578 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 07:33:14,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:33:14,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:33:15,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,033 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:33:15,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 57 [2022-12-14 07:33:15,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 07:33:15,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:15,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:33:15,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:33:15,607 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 07:33:15,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:33:15,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:33:15,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:33:15,809 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 07:33:15,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:33:15,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:33:16,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:33:16,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:33:16,077 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 07:33:16,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2022-12-14 07:33:16,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-12-14 07:33:16,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:33:16,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:33:16,367 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:33:16,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 07:33:16,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:33:17,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2022-12-14 07:33:17,269 INFO L321 Elim1Store]: treesize reduction 26, result has 10.3 percent of original size [2022-12-14 07:33:17,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 07:33:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:33:17,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:33:18,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-12-14 07:33:20,430 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2947 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_2948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_2946))) (select (select .cse2 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_2948) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse2 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse0 (_ bv12 32)) (bvadd (_ bv16 32) (bvmul (_ bv4 32) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_2947) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (concat (concat (concat (select .cse1 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv7 32))) (select .cse1 (bvadd (_ bv6 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))) (select .cse1 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv5 32)))) (select .cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) .cse0)))) (forall ((v_ArrVal_2948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_2946))) (select (select .cse4 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_2948) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse4 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd .cse3 (_ bv12 32)))))) is different from false [2022-12-14 07:33:20,607 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (select (select .cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2948) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse1 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_2947 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_2948 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (select (select .cse4 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2948) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse4 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse2 (_ bv12 32)) (bvadd (bvmul (_ bv4 32) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2947) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (concat (concat (concat (select .cse3 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv7 32))) (select .cse3 (bvadd (_ bv6 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))) (select .cse3 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv5 32)))) (select .cse3 (bvadd (_ bv4 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (_ bv16 32) .cse2))))) is different from false [2022-12-14 07:33:20,701 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:33:20,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 289 [2022-12-14 07:33:20,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:33:20,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 510 treesize of output 462 [2022-12-14 07:33:20,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 212 [2022-12-14 07:34:12,240 WARN L233 SmtUtils]: Spent 18.35s on a formula simplification. DAG size of input: 81 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:34:30,991 WARN L233 SmtUtils]: Spent 10.46s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:35:02,279 WARN L233 SmtUtils]: Spent 8.72s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:35:02,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:35:02,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 226 treesize of output 219 [2022-12-14 07:35:02,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:35:02,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 161 [2022-12-14 07:35:02,678 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:35:02,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 217 treesize of output 210 [2022-12-14 07:35:02,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 312 [2022-12-14 07:35:02,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 151 [2022-12-14 07:35:02,959 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:35:02,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 226 treesize of output 219 [2022-12-14 07:35:02,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:02,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 165 [2022-12-14 07:35:02,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 156 [2022-12-14 07:35:03,406 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse12 (= |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (let ((.cse0 (not .cse12)) (.cse3 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| |c_ULTIMATE.start_hid_open_report_~device#1.offset|)) (.cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (.cse5 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv5 32))) (.cse6 (bvadd (_ bv6 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (.cse7 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv7 32)))) (and (or .cse0 (forall ((v_arrayElimCell_479 (_ BitVec 8)) (v_ArrVal_2922 (_ BitVec 32)) (v_ArrVal_2924 (_ BitVec 32)) (v_arrayElimCell_478 (_ BitVec 8)) (v_arrayElimCell_477 (_ BitVec 8)) (v_ArrVal_2926 (_ BitVec 32)) (v_ArrVal_2929 (_ BitVec 32)) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_485 (_ BitVec 32)) (v_arrayElimCell_480 (_ BitVec 8))) (let ((.cse1 (let ((.cse2 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse3 .cse4 v_ArrVal_2922) .cse5 v_ArrVal_2926) .cse6 v_ArrVal_2924) .cse7 v_ArrVal_2929)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (select (select .cse2 v_arrayElimCell_485) (select (select .cse2 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse1 (_ bv12 32)) (bvadd (_ bv16 32) (bvmul (_ bv4 32) (concat (concat (concat v_arrayElimCell_479 v_arrayElimCell_480) v_arrayElimCell_478) v_arrayElimCell_477)) .cse1))))) (forall ((v_ArrVal_2922 (_ BitVec 32)) (v_ArrVal_2924 (_ BitVec 32)) (v_ArrVal_2926 (_ BitVec 32)) (v_ArrVal_2929 (_ BitVec 32)) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse3 .cse4 v_ArrVal_2922) .cse5 v_ArrVal_2926) .cse6 v_ArrVal_2924) .cse7 v_ArrVal_2929)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (let ((.cse10 (select (select .cse9 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))) (or (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_hid_open_report_~device#1.base|) .cse10))) (bvule (bvadd .cse8 (_ bv8 32)) (bvadd .cse8 (_ bv12 32)))) (forall ((v_arrayElimCell_483 (_ BitVec 32))) (let ((.cse11 (select (select .cse9 v_arrayElimCell_483) .cse10))) (bvule (bvadd (_ bv8 32) .cse11) (bvadd .cse11 (_ bv12 32))))))))) (or .cse12 (forall ((v_ArrVal_2922 (_ BitVec 32)) (v_ArrVal_2924 (_ BitVec 32)) (v_ArrVal_2926 (_ BitVec 32)) (v_ArrVal_2929 (_ BitVec 32)) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (let ((.cse14 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse3 .cse4 v_ArrVal_2922) .cse5 v_ArrVal_2926) .cse6 v_ArrVal_2924) .cse7 v_ArrVal_2929)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (select (select .cse14 |c_ULTIMATE.start_hid_open_report_~device#1.base|) (select (select .cse14 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse13 (_ bv12 32)) (bvadd (_ bv16 32) .cse13 (bvmul (_ bv4 32) (concat (concat (concat (_ bv0 8) (_ bv0 8)) (_ bv0 8)) (_ bv1 8)))))))) (or .cse0 (forall ((v_ArrVal_2922 (_ BitVec 32)) (v_ArrVal_2924 (_ BitVec 32)) (v_ArrVal_2926 (_ BitVec 32)) (v_arrayElimCell_483 (_ BitVec 32)) (v_ArrVal_2929 (_ BitVec 32)) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse15 (let ((.cse16 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse3 .cse4 v_ArrVal_2922) .cse5 v_ArrVal_2926) .cse6 v_ArrVal_2924) .cse7 v_ArrVal_2929)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (select (select .cse16 v_arrayElimCell_483) (select (select .cse16 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd (_ bv8 32) .cse15) (bvadd .cse15 (_ bv12 32)))))) (or .cse12 (forall ((v_ArrVal_2922 (_ BitVec 32)) (v_ArrVal_2924 (_ BitVec 32)) (v_ArrVal_2926 (_ BitVec 32)) (v_ArrVal_2929 (_ BitVec 32)) (v_ArrVal_2946 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse17 (let ((.cse18 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse3 .cse4 v_ArrVal_2922) .cse5 v_ArrVal_2926) .cse6 v_ArrVal_2924) .cse7 v_ArrVal_2929)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_2946))) (select (select .cse18 |c_ULTIMATE.start_hid_open_report_~device#1.base|) (select (select .cse18 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse17 (_ bv8 32)) (bvadd .cse17 (_ bv12 32))))))))) is different from false [2022-12-14 07:35:20,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:35:20,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183581127] [2022-12-14 07:35:20,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183581127] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:35:20,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1531883001] [2022-12-14 07:35:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:35:20,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 07:35:20,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 07:35:20,788 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 07:35:20,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-12-14 07:35:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:35:21,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-14 07:35:21,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:35:23,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:35:29,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:35:29,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:35:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:30,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:35:30,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:30,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:30,357 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 07:35:30,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 36 [2022-12-14 07:35:31,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 07:35:31,588 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 07:35:31,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 07:35:34,635 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 07:35:34,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 07:35:34,955 INFO L321 Elim1Store]: treesize reduction 70, result has 30.7 percent of original size [2022-12-14 07:35:34,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 51 [2022-12-14 07:35:37,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:35:37,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 38 [2022-12-14 07:35:39,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,469 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 07:35:39,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 77 [2022-12-14 07:35:39,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:39,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 57 [2022-12-14 07:35:41,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:41,467 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:35:41,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 54 [2022-12-14 07:35:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:41,731 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 07:35:41,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 34 [2022-12-14 07:35:41,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:35:42,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:42,790 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:35:42,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 54 [2022-12-14 07:35:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:43,066 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 07:35:43,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 34 [2022-12-14 07:35:43,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:35:44,632 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-14 07:35:44,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 42 [2022-12-14 07:35:44,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 07:35:44,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:44,923 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:35:44,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 54 [2022-12-14 07:35:46,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:46,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:46,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:46,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 07:35:46,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:46,441 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 07:35:46,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 54 [2022-12-14 07:35:52,463 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-12-14 07:35:52,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 51 [2022-12-14 07:35:52,524 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 07:35:52,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-12-14 07:35:55,865 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#Ultimate.meminit_#ptr#1.base| (_ BitVec 32)) (v_ArrVal_3095 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#Ultimate.meminit_#ptr#1.base|)) (= (store |c_old(#length)| |ldv_zalloc_#Ultimate.meminit_#ptr#1.base| v_ArrVal_3095) |c_#length|))) is different from true [2022-12-14 07:35:55,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:35:55,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 07:35:56,103 INFO L321 Elim1Store]: treesize reduction 28, result has 31.7 percent of original size [2022-12-14 07:35:56,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 07:35:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-14 07:35:58,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:36:03,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1531883001] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:36:03,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657058237] [2022-12-14 07:36:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:36:03,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:36:03,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:36:03,110 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:36:03,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ab3e40-7b6a-4c8c-8f7e-76ba731e49f7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-12-14 07:36:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:36:03,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 83 conjunts are in the unsatisfiable core [2022-12-14 07:36:03,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:36:07,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:36:08,870 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 07:36:08,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 07:36:12,843 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-14 07:36:12,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 07:36:14,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 07:36:14,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 07:36:17,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:17,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:17,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:17,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:17,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-12-14 07:36:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:18,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:18,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:36:18,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 57 [2022-12-14 07:36:18,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 07:36:20,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2022-12-14 07:36:20,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:36:20,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:36:20,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2022-12-14 07:36:20,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:36:20,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:36:20,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2022-12-14 07:36:20,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:36:20,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:36:20,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 07:36:20,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2022-12-14 07:36:20,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 07:36:23,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 07:36:24,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-12-14 07:36:26,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2022-12-14 07:36:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:36:29,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:36:29,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-12-14 07:36:46,568 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv7 32))) (.cse4 (bvadd (_ bv6 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (.cse5 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv5 32))) (.cse6 (bvadd (_ bv4 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))) (and (or (forall ((v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_3246))) (select (select .cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse1 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_3245 (Array (_ BitVec 32) (_ BitVec 8)))) (bvuge (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_3245) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (concat (concat (concat (select .cse2 .cse3) (select .cse2 .cse4)) (select .cse2 .cse5)) (select .cse2 .cse6))) (_ bv256 32)))) (forall ((v_ArrVal_3245 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse8 (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_3245) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (concat (concat (concat (select .cse10 .cse3) (select .cse10 .cse4)) (select .cse10 .cse5)) (select .cse10 .cse6))))) (or (forall ((v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_3246))) (select (select .cse9 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fetch_item_~item#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse9 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse7 (_ bv12 32)) (bvadd (bvmul (_ bv4 32) .cse8) (_ bv16 32) .cse7)))) (bvuge .cse8 (_ bv256 32))))))) is different from false [2022-12-14 07:36:47,060 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv7 32))) (.cse2 (bvadd (_ bv6 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (.cse3 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv5 32))) (.cse4 (bvadd (_ bv4 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))) (and (or (forall ((v_ArrVal_3245 (Array (_ BitVec 32) (_ BitVec 8)))) (bvuge (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3245) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))) (_ bv256 32))) (forall ((v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse6 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse6 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd .cse5 (_ bv12 32)))))) (forall ((v_ArrVal_3245 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse7 (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3245) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (concat (concat (concat (select .cse10 .cse1) (select .cse10 .cse2)) (select .cse10 .cse3)) (select .cse10 .cse4))))) (or (bvuge .cse7 (_ bv256 32)) (forall ((v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse9 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse9 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse8 (_ bv12 32)) (bvadd (_ bv16 32) (bvmul .cse7 (_ bv4 32)) .cse8))))))))) is different from false [2022-12-14 07:36:47,228 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:36:47,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 149 treesize of output 87 [2022-12-14 07:36:47,245 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:36:47,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 49 [2022-12-14 07:36:47,275 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:36:47,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 9 [2022-12-14 07:36:47,369 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:36:47,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 498 treesize of output 331 [2022-12-14 07:36:47,397 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:36:47,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 544 treesize of output 490 [2022-12-14 07:36:47,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 226 [2022-12-14 07:36:50,138 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse23 (= |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|))) (let ((.cse0 (not .cse23)) (.cse13 ((_ extract 7 0) |c_ULTIMATE.start_hid_open_report_#t~ret53#1|)) (.cse4 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|)) (.cse9 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|)) (.cse5 (bvadd (_ bv4 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (.cse6 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv5 32))) (.cse7 (bvadd (_ bv6 32) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (.cse8 (bvadd |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset| (_ bv7 32)))) (and (or .cse0 (forall ((v_arrayElimCell_579 (_ BitVec 8)) (v_arrayElimCell_578 (_ BitVec 8)) (v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_577 (_ BitVec 8)) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3234 (_ BitVec 32)) (v_ArrVal_3235 (_ BitVec 32)) (v_ArrVal_3232 (_ BitVec 32)) (v_ArrVal_3233 (_ BitVec 32)) (v_ArrVal_3230 (_ BitVec 32)) (v_ArrVal_3231 (_ BitVec 32)) (v_ArrVal_3227 (_ BitVec 32)) (v_ArrVal_3228 (_ BitVec 32)) (v_arrayElimCell_580 (_ BitVec 8))) (let ((.cse1 (concat (concat (concat v_arrayElimCell_579 v_arrayElimCell_580) v_arrayElimCell_578) v_arrayElimCell_577))) (or (bvuge .cse1 (_ bv256 32)) (let ((.cse2 (let ((.cse3 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse9 .cse5 v_ArrVal_3233) .cse6 v_ArrVal_3235) .cse7 v_ArrVal_3230) .cse8 v_ArrVal_3232)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse3 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse4 .cse5 v_ArrVal_3234) .cse6 v_ArrVal_3228) .cse7 v_ArrVal_3231) .cse8 v_ArrVal_3227)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse3 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse2 (_ bv12 32)) (bvadd (_ bv16 32) (bvmul (_ bv4 32) .cse1) .cse2))))))) (or .cse0 (forall ((v_arrayElimCell_579 (_ BitVec 8)) (v_arrayElimCell_578 (_ BitVec 8)) (v_arrayElimCell_575 (_ BitVec 8)) (v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_574 (_ BitVec 8)) (v_arrayElimCell_577 (_ BitVec 8)) (v_arrayElimCell_576 (_ BitVec 8)) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3234 (_ BitVec 32)) (v_ArrVal_3235 (_ BitVec 32)) (v_ArrVal_3232 (_ BitVec 32)) (v_ArrVal_3233 (_ BitVec 32)) (v_ArrVal_3230 (_ BitVec 32)) (v_ArrVal_3231 (_ BitVec 32)) (v_ArrVal_3227 (_ BitVec 32)) (v_ArrVal_3228 (_ BitVec 32)) (v_arrayElimCell_580 (_ BitVec 8))) (let ((.cse12 (let ((.cse14 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse9 .cse5 v_ArrVal_3233) .cse6 v_ArrVal_3235) .cse7 v_ArrVal_3230) .cse8 v_ArrVal_3232)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse14 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse4 .cse5 v_ArrVal_3234) .cse6 v_ArrVal_3228) .cse7 v_ArrVal_3231) .cse8 v_ArrVal_3227)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse14 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (let ((.cse11 (bvadd .cse12 (_ bv12 32))) (.cse10 (concat (concat (concat v_arrayElimCell_579 v_arrayElimCell_580) v_arrayElimCell_578) v_arrayElimCell_577))) (or (bvuge .cse10 (_ bv256 32)) (bvule .cse11 (bvadd (_ bv16 32) .cse12 (bvmul (_ bv4 32) (concat (concat (concat v_arrayElimCell_576 v_arrayElimCell_574) v_arrayElimCell_575) .cse13)))) (bvule .cse11 (bvadd (_ bv16 32) (bvmul (_ bv4 32) .cse10) .cse12))))))) (forall ((v_arrayElimCell_579 (_ BitVec 8)) (v_arrayElimCell_578 (_ BitVec 8)) (v_arrayElimCell_577 (_ BitVec 8)) (v_arrayElimCell_580 (_ BitVec 8))) (let ((.cse15 (concat (concat (concat v_arrayElimCell_579 v_arrayElimCell_580) v_arrayElimCell_578) v_arrayElimCell_577))) (or (bvuge .cse15 (_ bv256 32)) (forall ((v_ArrVal_3234 (_ BitVec 32)) (v_ArrVal_3235 (_ BitVec 32)) (v_ArrVal_3232 (_ BitVec 32)) (v_ArrVal_3233 (_ BitVec 32)) (v_ArrVal_3230 (_ BitVec 32)) (v_ArrVal_3231 (_ BitVec 32)) (v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3227 (_ BitVec 32)) (v_ArrVal_3228 (_ BitVec 32))) (let ((.cse18 (let ((.cse19 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse9 .cse5 v_ArrVal_3233) .cse6 v_ArrVal_3235) .cse7 v_ArrVal_3230) .cse8 v_ArrVal_3232)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse19 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse4 .cse5 v_ArrVal_3234) .cse6 v_ArrVal_3228) .cse7 v_ArrVal_3231) .cse8 v_ArrVal_3227)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse19 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (let ((.cse17 (bvadd .cse18 (_ bv12 32)))) (or (forall ((v_arrayElimCell_575 (_ BitVec 8)) (v_arrayElimCell_574 (_ BitVec 8)) (v_arrayElimCell_576 (_ BitVec 8))) (let ((.cse16 (concat (concat (concat v_arrayElimCell_576 v_arrayElimCell_574) v_arrayElimCell_575) .cse13))) (or (bvuge .cse16 (_ bv256 32)) (bvule .cse17 (bvadd (_ bv16 32) .cse18 (bvmul (_ bv4 32) .cse16)))))) (bvule .cse17 (bvadd (_ bv16 32) (bvmul (_ bv4 32) .cse15) .cse18))))))))) (or (forall ((v_arrayElimCell_575 (_ BitVec 8)) (v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_574 (_ BitVec 8)) (v_arrayElimCell_576 (_ BitVec 8)) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3234 (_ BitVec 32)) (v_ArrVal_3235 (_ BitVec 32)) (v_ArrVal_3232 (_ BitVec 32)) (v_ArrVal_3233 (_ BitVec 32)) (v_ArrVal_3230 (_ BitVec 32)) (v_ArrVal_3231 (_ BitVec 32)) (v_ArrVal_3227 (_ BitVec 32)) (v_ArrVal_3228 (_ BitVec 32))) (let ((.cse20 (concat (concat (concat v_arrayElimCell_576 v_arrayElimCell_574) v_arrayElimCell_575) .cse13))) (or (bvuge .cse20 (_ bv256 32)) (let ((.cse21 (let ((.cse22 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse9 .cse5 v_ArrVal_3233) .cse6 v_ArrVal_3235) .cse7 v_ArrVal_3230) .cse8 v_ArrVal_3232)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse22 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse4 .cse5 v_ArrVal_3234) .cse6 v_ArrVal_3228) .cse7 v_ArrVal_3231) .cse8 v_ArrVal_3227)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse22 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd .cse21 (_ bv12 32)) (bvadd (_ bv16 32) .cse21 (bvmul (_ bv4 32) .cse20))))))) .cse23) (or (forall ((v_arrayElimCell_579 (_ BitVec 8)) (v_arrayElimCell_578 (_ BitVec 8)) (v_arrayElimCell_575 (_ BitVec 8)) (v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_574 (_ BitVec 8)) (v_arrayElimCell_577 (_ BitVec 8)) (v_arrayElimCell_576 (_ BitVec 8)) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3234 (_ BitVec 32)) (v_ArrVal_3235 (_ BitVec 32)) (v_ArrVal_3232 (_ BitVec 32)) (v_ArrVal_3233 (_ BitVec 32)) (v_ArrVal_3230 (_ BitVec 32)) (v_ArrVal_3231 (_ BitVec 32)) (v_ArrVal_3227 (_ BitVec 32)) (v_ArrVal_3228 (_ BitVec 32)) (v_arrayElimCell_580 (_ BitVec 8))) (let ((.cse26 (let ((.cse27 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse9 .cse5 v_ArrVal_3233) .cse6 v_ArrVal_3235) .cse7 v_ArrVal_3230) .cse8 v_ArrVal_3232)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse27 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse4 .cse5 v_ArrVal_3234) .cse6 v_ArrVal_3228) .cse7 v_ArrVal_3231) .cse8 v_ArrVal_3227)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse27 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (let ((.cse24 (concat (concat (concat v_arrayElimCell_576 v_arrayElimCell_574) v_arrayElimCell_575) .cse13)) (.cse25 (bvadd .cse26 (_ bv12 32)))) (or (bvuge .cse24 (_ bv256 32)) (bvule .cse25 (bvadd (_ bv16 32) .cse26 (bvmul (_ bv4 32) .cse24))) (bvule .cse25 (bvadd (_ bv16 32) (bvmul (_ bv4 32) (concat (concat (concat v_arrayElimCell_579 v_arrayElimCell_580) v_arrayElimCell_578) v_arrayElimCell_577)) .cse26)))))) .cse23) (or (and .cse0 (forall ((v_arrayElimCell_568 (_ BitVec 8)) (v_arrayElimCell_567 (_ BitVec 8)) (v_arrayElimCell_566 (_ BitVec 8))) (bvuge (concat (concat (concat v_arrayElimCell_568 v_arrayElimCell_566) v_arrayElimCell_567) .cse13) (_ bv256 32)))) (forall ((v_ArrVal_3234 (_ BitVec 32)) (v_ArrVal_3235 (_ BitVec 32)) (v_ArrVal_3232 (_ BitVec 32)) (v_ArrVal_3233 (_ BitVec 32)) (v_ArrVal_3230 (_ BitVec 32)) (v_ArrVal_3231 (_ BitVec 32)) (v_ArrVal_3247 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3246 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3227 (_ BitVec 32)) (v_ArrVal_3228 (_ BitVec 32))) (let ((.cse28 (let ((.cse29 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse9 .cse5 v_ArrVal_3233) .cse6 v_ArrVal_3235) .cse7 v_ArrVal_3230) .cse8 v_ArrVal_3232)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3246))) (select (select .cse29 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_hid_open_report_~parser~0#1.base| (store (store (store (store .cse4 .cse5 v_ArrVal_3234) .cse6 v_ArrVal_3228) .cse7 v_ArrVal_3231) .cse8 v_ArrVal_3227)) |c_ULTIMATE.start_hid_open_report_~#item~0#1.base| v_ArrVal_3247) |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|)) (select (select .cse29 |c_ULTIMATE.start_hid_open_report_~parser~0#1.base|) |c_ULTIMATE.start_hid_open_report_~parser~0#1.offset|))))) (bvule (bvadd (_ bv8 32) .cse28) (bvadd .cse28 (_ bv12 32))))))))) is different from false [2022-12-14 07:38:48,426 WARN L233 SmtUtils]: Spent 47.28s on a formula simplification. DAG size of input: 104 DAG size of output: 89 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)